This document contains instructions and questions for an exercise on project management concepts including critical path method (CPM) and program evaluation and review technique (PERT). It asks students to perform calculations for various networks and project schedules, including determining float, drawing time-scaled diagrams, and identifying critical activities. It also provides a multi-step case study of a gas station construction project and asks students to model it using CPM.
This document contains three exercises related to construction project management. The first exercise provides cost and schedule data for a small project and asks to develop a time-cost curve and minimum contract duration. The second exercise provides activity duration, cost, and indirect cost data for a pipeline contract and asks to calculate minimum cost for a 102 day contract duration. The third exercise provides precedence data for a set of activities and asks to draw the precedence diagram and calculate additional cost for compressing the schedule to 65 days.
The document discusses soil phase relationships and concepts related to borrow pit volumes. It defines key terms like specific gravity, moisture content, void ratio, porosity, unit weights, and explores relationships between these terms. It also covers volume change factors related to excavation, loading and shrinkage. The borrow pit method for calculating soil volumes is described, involving taking elevation measurements at grid points to determine cut volumes. Example problems demonstrate calculations for cut volumes, hauled soil volumes, and volumes remaining in borrow pits.
The document outlines a 29-week construction schedule for a building project. It details the various construction activities that will take place each week, including earthworks, piling, formwork, concrete works, services installation, and brickwork. Key activities involve site clearing, excavation, piling, pile caps and foundations, ground beams and slabs on the ground floor, first floor and second floor, with columns and staircases also constructed. The schedule provides information on duration, materials, equipment, workers and technical details for each construction activity across the 29 weeks.
1) The document discusses project scheduling and the critical path method (CPM) for determining the minimum time needed to complete a project.
2) CPM involves calculating early and late start/finish times for activities through forward and backward passes through the network. It also identifies critical activities with zero float that must finish on schedule.
3) The example project network is analyzed using CPM. Forward processing determines early start times, while backward processing finds late finish times. Floats are then calculated to identify which activities have no scheduling flexibility.
This document provides an overview of soil classification systems, focusing on the Unified Soil Classification System (USCS) and the American Association of State Highway and Transportation Officials (AASHTO) system. It defines key aspects of each system such as grouping soils by grain size and plasticity. Examples are provided to demonstrate how to classify soils using index properties and test results based on the criteria of each system.
1. The document discusses excavation work for building foundations, including determining the type and depth of excavation needed and which measurement clauses to apply.
2. Excavation work includes measuring the volume of soil removed for footings and pile caps, as well as disposing of surplus soil according to clauses for on-site or off-site removal.
3. Calculating excavation work requires identifying the foundation type from drawings, finding the relevant clause, and measuring the excavation depth, length, and width to determine the excavated material volume.
This document provides 10 examples of problems related to bearing capacity of foundations. The examples calculate bearing capacity using Terzaghi's analysis for different soil and foundation conditions, including cohesionless and cohesive soils, square and strip footings, and considering the water table depth. One example compares results to field plate load tests. The solutions show calculations for determining soil shear strength parameters, factor of safety, and safe bearing capacity.
CPM (Critical Path Method) is a technique used to schedule projects and estimate completion times. It involves identifying all tasks, their durations, dependencies and calculating the earliest and latest start/finish times. The critical path is the longest sequence of dependent tasks that determines the project duration. Non-critical tasks have float, which is the amount of time a task can be delayed without delaying completion. Calculating floats helps identify underutilized resources and schedule flexibility.
This document contains three exercises related to construction project management. The first exercise provides cost and schedule data for a small project and asks to develop a time-cost curve and minimum contract duration. The second exercise provides activity duration, cost, and indirect cost data for a pipeline contract and asks to calculate minimum cost for a 102 day contract duration. The third exercise provides precedence data for a set of activities and asks to draw the precedence diagram and calculate additional cost for compressing the schedule to 65 days.
The document discusses soil phase relationships and concepts related to borrow pit volumes. It defines key terms like specific gravity, moisture content, void ratio, porosity, unit weights, and explores relationships between these terms. It also covers volume change factors related to excavation, loading and shrinkage. The borrow pit method for calculating soil volumes is described, involving taking elevation measurements at grid points to determine cut volumes. Example problems demonstrate calculations for cut volumes, hauled soil volumes, and volumes remaining in borrow pits.
The document outlines a 29-week construction schedule for a building project. It details the various construction activities that will take place each week, including earthworks, piling, formwork, concrete works, services installation, and brickwork. Key activities involve site clearing, excavation, piling, pile caps and foundations, ground beams and slabs on the ground floor, first floor and second floor, with columns and staircases also constructed. The schedule provides information on duration, materials, equipment, workers and technical details for each construction activity across the 29 weeks.
1) The document discusses project scheduling and the critical path method (CPM) for determining the minimum time needed to complete a project.
2) CPM involves calculating early and late start/finish times for activities through forward and backward passes through the network. It also identifies critical activities with zero float that must finish on schedule.
3) The example project network is analyzed using CPM. Forward processing determines early start times, while backward processing finds late finish times. Floats are then calculated to identify which activities have no scheduling flexibility.
This document provides an overview of soil classification systems, focusing on the Unified Soil Classification System (USCS) and the American Association of State Highway and Transportation Officials (AASHTO) system. It defines key aspects of each system such as grouping soils by grain size and plasticity. Examples are provided to demonstrate how to classify soils using index properties and test results based on the criteria of each system.
1. The document discusses excavation work for building foundations, including determining the type and depth of excavation needed and which measurement clauses to apply.
2. Excavation work includes measuring the volume of soil removed for footings and pile caps, as well as disposing of surplus soil according to clauses for on-site or off-site removal.
3. Calculating excavation work requires identifying the foundation type from drawings, finding the relevant clause, and measuring the excavation depth, length, and width to determine the excavated material volume.
This document provides 10 examples of problems related to bearing capacity of foundations. The examples calculate bearing capacity using Terzaghi's analysis for different soil and foundation conditions, including cohesionless and cohesive soils, square and strip footings, and considering the water table depth. One example compares results to field plate load tests. The solutions show calculations for determining soil shear strength parameters, factor of safety, and safe bearing capacity.
CPM (Critical Path Method) is a technique used to schedule projects and estimate completion times. It involves identifying all tasks, their durations, dependencies and calculating the earliest and latest start/finish times. The critical path is the longest sequence of dependent tasks that determines the project duration. Non-critical tasks have float, which is the amount of time a task can be delayed without delaying completion. Calculating floats helps identify underutilized resources and schedule flexibility.
Determination of strength and stress-strain relationships of a cylindrical specimen of reconstituted specimen using Consolidated Drained (CD) Triaxial Test.
1. A series of drained triaxial tests under four different initial states were conducted on Yamuna River sand. The results consist of simple stress-strain relation, change in volume behaviour were plotted.
2. Basic stress-strain relation with volume behaviour was presented in plot. The results for densely prepared sand samples show an expected behaviour. There is a significant difference in peak and residual deviatoric stress (q) as can be depicted form the plot.
3. With increase in confining stress, load carrying capacity of specimen increases.
4. Saturation value ‘B’ must be acquired to be more than 0.95 before starting the isotropic consolidation phase in CD test.
5. CD tests are performed at much slower strain rate as compared to CU tests for the same soil. The strain rate for CD test can be chosen approx. 8-10 times lower than the CU test.
6. It is important to have no pore water pressure generation throughout the shearing phase of CD test or in other words strain rate must be so small that pore water pressure must get dissipated quickly when specimen is subjected to compression loading in CD test.
7. In CD test, volumetric strain versus axial strain relationship shows contractive response for NC soils and dilative response for OC soils. (NC = Normally consolidated, OC = Over consolidated)
References:
1. IS: 2720 (Part 11):1993- Determination of the shear strength parameters of a specimen tested in unconsolidated undrained triaxial compression without the measurement of pore water pressure (first revision). Reaffirmed- Dec 2016.
2. IS: 2720 (Part 12):1981- Determination of Shear Strength parameters of Soil from consolidated undrained triaxial compression test with measurement of pore water pressure (first revision). Reaffirmed- Dec 2016.
3. ASTM D7181-11. Method for Consolidated Drained Triaxial Compression Test for Soils; ASTM: West Conshohocken, PA, USA, 2011.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
1. The document provides examples of calculating consolidation parameters such as void ratio, coefficient of consolidation, and primary consolidation settlement from given soil testing data.
2. Parameters like initial void ratio, applied pressure, and thickness of soil layers are used to determine the change in stress and void ratio to then calculate settlement.
3. Several methods are presented to calculate the average effective stress and stress change at different points to then determine the consolidation settlement under different boundary conditions, stress histories, and soil properties.
This document provides an introduction to foundation engineering and different types of foundations. It discusses shallow foundations, which have a depth to width ratio of less than 4, including spread, strip, continuous, combined and raft foundations. It also discusses deep foundations, which have a depth to width ratio greater than 4, such as piles and drilled shafts. The document further explains bearing capacity and settlement criteria for foundations. It provides details on Terzaghi's and Skempton's bearing capacity theories and includes examples of calculating ultimate and allowable bearing capacities.
Normal Consistency of Hydraulic Cement | Jameel AcademyJameel Academy
This report summarizes a test to determine the normal consistency of hydraulic cement. Four trials were conducted with 500g of cement and varying water-cement (W/C) ratios of 0.25, 0.27, 0.30 and 0.33. These trials resulted in penetrations of 25mm, 9mm, 5mm and 4mm respectively. From the relationship between W/C ratio and penetration, the standard consistency was determined to be 0.2875 at a penetration of 6mm. However, the average penetration of 10.75mm exceeded the standard of 6±1mm, suggesting errors in the test such as insufficient cement quantity and inaccurate penetration measurement timing. The purpose of the test was to find
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
The document discusses mass haul diagrams (MHD), which are used to compare earthwork distribution costs for construction projects. MHDs graphically represent cumulative earthwork volumes along a linear profile. Peaks indicate transitions between cuts and fills, and balanced sections are bounded by points intersecting the x-axis. MHDs can identify where cuts and fills balance, quantities of material movement, and if borrow or waste is required. Construction of MHDs involves plotting cumulative earthwork values along the y-axis by stationing along the x-axis. Analysis of MHDs determines balanced sections and their average haul distances to estimate transportation costs.
This chapter discusses Terzaghi's bearing capacity theory for determining the ultimate bearing capacity of shallow foundations. It summarizes the key assumptions of Terzaghi's theory, including homogeneous, isotropic soil; two-dimensional problem; general shear failure; and vertical, symmetrical loading. It describes the failure mechanism with three zones - an elastic central zone beneath the footing, and two radial shear zones on the sides that meet the ground surface at angles of 45° - φ/2. Terzaghi's theory uses a semi-empirical equation to calculate ultimate bearing capacity based on soil properties of cohesion, friction, and the effective overburden pressure at the foundation level.
The document provides a summary of consolidation and 9 practice problems related to consolidation of soils. It begins with definitions of terms like settlement, change in void ratio, coefficient of consolidation. It then presents the practice problems related to calculation of void ratio, thickness change, coefficient of volume compressibility, time required for 50% consolidation based on coefficient of consolidation, estimation of settlement etc. It concludes with references for further reading on the topic of consolidation in geotechnical engineering.
(AOA) and (AON) Network construction and critical path calculations (using fo...Dr. Mahmoud Al-Naimi
This document provides an example of constructing an activity on arrow (AOA) network and activity on node (AON) network for a project with multiple activities. It shows the steps to calculate early start, early finish, late start, late finish, total float, and critical path for identifying the longest duration of project completion. The critical path is identified as A → C → G → J, with an overall project completion time of 27 days.
Geotechnical Engineering-I [Lec #14: Lab Compaction of Soil]Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
This document outlines homework problems related to soil properties. It includes 6 problems calculating various properties like water content, unit weight, void ratio, porosity, degree of saturation, and dry unit weight given information like the weight of moist soil, specific gravity, degree of saturation, and air content. The problems are solved showing the calculations and steps to arrive at the requested properties.
Permeability Test of soil Using Constant and Falling Head MethodJameel Academy
1) The document describes laboratory tests to determine the coefficient of permeability of soil samples using the constant head and falling head methods.
2) For the falling head test on a sandy soil sample, the average permeability was found to be 0.00322 cm/sec.
3) For the constant head test on a second sample, the average permeability was determined to be 0.02069 cm/min.
ultimate bearing capacity of shallow foundations: special casesMehmet Akin
This document discusses special cases for the ultimate bearing capacity of shallow foundations beyond the standard assumptions. It describes how the bearing capacity is affected by:
1) A rigid layer at shallow depth below the foundation, which restricts failure surface development.
2) Layered soils with different shear strengths, where the failure surface may pass through multiple layers.
3) Proximity to a slope, where the failure surface includes a wedge of soil from the slope.
4) Closely spaced foundations, where failure surfaces can overlap and bearing capacity is reduced due to interference.
Class 4 Soil Compaction ( Geotechnical Engineering )Hossam Shafiq I
This document discusses a geotechnical engineering laboratory experiment on determining the moisture-unit weight relationship of soil through compaction testing. It describes the standard Proctor compaction test procedure which involves compacting soil in layers in a mold using a hammer. A compaction curve is plotted showing the relationship between dry unit weight and moisture content, with the maximum dry unit weight and optimum moisture content identified. It also describes the modified Proctor compaction test which simulates higher compaction efforts and the use of compaction test specifications in field construction.
CPM involves drawing a network diagram of activities and their relationships, analyzing paths and determining earliest and latest start/finish times to identify the critical path and calculate slack. Project crashing involves shortening activity durations by incurring costs to potentially reduce the project duration below that of the critical path. An example outlines crashing the critical
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Geotechnical Engineering-II [Lec #20: WT effect on Bearing Capcity)Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Mass-haul diagrams (MHDs) are used to calculate cut and fill volumes and estimate material hauling needs for construction projects. MHDs graphically display cumulative cut and fill volumes along the project centerline. They are used to determine balancing points where cut and fill volumes offset, how much material needs to be imported or exported, and the most economical hauling methods. An example MHD analysis identifies a project's maximum haul distance and calculates how much borrow material is needed to make up the excess fill volume.
The document provides instructions for an assignment asking civil engineering students to submit a 3-5 page report on a mega construction project. The report must include: a summary of the project, stages of construction, type of project and contract, planned vs. actual duration and cost, obstacles faced, and construction methods used. Students are encouraged to use a variety of sources for their research such as engineering magazines, newspapers, books, and websites. Plagiarism is prohibited.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help enhance one's emotional well-being and mental clarity.
Determination of strength and stress-strain relationships of a cylindrical specimen of reconstituted specimen using Consolidated Drained (CD) Triaxial Test.
1. A series of drained triaxial tests under four different initial states were conducted on Yamuna River sand. The results consist of simple stress-strain relation, change in volume behaviour were plotted.
2. Basic stress-strain relation with volume behaviour was presented in plot. The results for densely prepared sand samples show an expected behaviour. There is a significant difference in peak and residual deviatoric stress (q) as can be depicted form the plot.
3. With increase in confining stress, load carrying capacity of specimen increases.
4. Saturation value ‘B’ must be acquired to be more than 0.95 before starting the isotropic consolidation phase in CD test.
5. CD tests are performed at much slower strain rate as compared to CU tests for the same soil. The strain rate for CD test can be chosen approx. 8-10 times lower than the CU test.
6. It is important to have no pore water pressure generation throughout the shearing phase of CD test or in other words strain rate must be so small that pore water pressure must get dissipated quickly when specimen is subjected to compression loading in CD test.
7. In CD test, volumetric strain versus axial strain relationship shows contractive response for NC soils and dilative response for OC soils. (NC = Normally consolidated, OC = Over consolidated)
References:
1. IS: 2720 (Part 11):1993- Determination of the shear strength parameters of a specimen tested in unconsolidated undrained triaxial compression without the measurement of pore water pressure (first revision). Reaffirmed- Dec 2016.
2. IS: 2720 (Part 12):1981- Determination of Shear Strength parameters of Soil from consolidated undrained triaxial compression test with measurement of pore water pressure (first revision). Reaffirmed- Dec 2016.
3. ASTM D7181-11. Method for Consolidated Drained Triaxial Compression Test for Soils; ASTM: West Conshohocken, PA, USA, 2011.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
1. The document provides examples of calculating consolidation parameters such as void ratio, coefficient of consolidation, and primary consolidation settlement from given soil testing data.
2. Parameters like initial void ratio, applied pressure, and thickness of soil layers are used to determine the change in stress and void ratio to then calculate settlement.
3. Several methods are presented to calculate the average effective stress and stress change at different points to then determine the consolidation settlement under different boundary conditions, stress histories, and soil properties.
This document provides an introduction to foundation engineering and different types of foundations. It discusses shallow foundations, which have a depth to width ratio of less than 4, including spread, strip, continuous, combined and raft foundations. It also discusses deep foundations, which have a depth to width ratio greater than 4, such as piles and drilled shafts. The document further explains bearing capacity and settlement criteria for foundations. It provides details on Terzaghi's and Skempton's bearing capacity theories and includes examples of calculating ultimate and allowable bearing capacities.
Normal Consistency of Hydraulic Cement | Jameel AcademyJameel Academy
This report summarizes a test to determine the normal consistency of hydraulic cement. Four trials were conducted with 500g of cement and varying water-cement (W/C) ratios of 0.25, 0.27, 0.30 and 0.33. These trials resulted in penetrations of 25mm, 9mm, 5mm and 4mm respectively. From the relationship between W/C ratio and penetration, the standard consistency was determined to be 0.2875 at a penetration of 6mm. However, the average penetration of 10.75mm exceeded the standard of 6±1mm, suggesting errors in the test such as insufficient cement quantity and inaccurate penetration measurement timing. The purpose of the test was to find
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
The document discusses mass haul diagrams (MHD), which are used to compare earthwork distribution costs for construction projects. MHDs graphically represent cumulative earthwork volumes along a linear profile. Peaks indicate transitions between cuts and fills, and balanced sections are bounded by points intersecting the x-axis. MHDs can identify where cuts and fills balance, quantities of material movement, and if borrow or waste is required. Construction of MHDs involves plotting cumulative earthwork values along the y-axis by stationing along the x-axis. Analysis of MHDs determines balanced sections and their average haul distances to estimate transportation costs.
This chapter discusses Terzaghi's bearing capacity theory for determining the ultimate bearing capacity of shallow foundations. It summarizes the key assumptions of Terzaghi's theory, including homogeneous, isotropic soil; two-dimensional problem; general shear failure; and vertical, symmetrical loading. It describes the failure mechanism with three zones - an elastic central zone beneath the footing, and two radial shear zones on the sides that meet the ground surface at angles of 45° - φ/2. Terzaghi's theory uses a semi-empirical equation to calculate ultimate bearing capacity based on soil properties of cohesion, friction, and the effective overburden pressure at the foundation level.
The document provides a summary of consolidation and 9 practice problems related to consolidation of soils. It begins with definitions of terms like settlement, change in void ratio, coefficient of consolidation. It then presents the practice problems related to calculation of void ratio, thickness change, coefficient of volume compressibility, time required for 50% consolidation based on coefficient of consolidation, estimation of settlement etc. It concludes with references for further reading on the topic of consolidation in geotechnical engineering.
(AOA) and (AON) Network construction and critical path calculations (using fo...Dr. Mahmoud Al-Naimi
This document provides an example of constructing an activity on arrow (AOA) network and activity on node (AON) network for a project with multiple activities. It shows the steps to calculate early start, early finish, late start, late finish, total float, and critical path for identifying the longest duration of project completion. The critical path is identified as A → C → G → J, with an overall project completion time of 27 days.
Geotechnical Engineering-I [Lec #14: Lab Compaction of Soil]Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
This document outlines homework problems related to soil properties. It includes 6 problems calculating various properties like water content, unit weight, void ratio, porosity, degree of saturation, and dry unit weight given information like the weight of moist soil, specific gravity, degree of saturation, and air content. The problems are solved showing the calculations and steps to arrive at the requested properties.
Permeability Test of soil Using Constant and Falling Head MethodJameel Academy
1) The document describes laboratory tests to determine the coefficient of permeability of soil samples using the constant head and falling head methods.
2) For the falling head test on a sandy soil sample, the average permeability was found to be 0.00322 cm/sec.
3) For the constant head test on a second sample, the average permeability was determined to be 0.02069 cm/min.
ultimate bearing capacity of shallow foundations: special casesMehmet Akin
This document discusses special cases for the ultimate bearing capacity of shallow foundations beyond the standard assumptions. It describes how the bearing capacity is affected by:
1) A rigid layer at shallow depth below the foundation, which restricts failure surface development.
2) Layered soils with different shear strengths, where the failure surface may pass through multiple layers.
3) Proximity to a slope, where the failure surface includes a wedge of soil from the slope.
4) Closely spaced foundations, where failure surfaces can overlap and bearing capacity is reduced due to interference.
Class 4 Soil Compaction ( Geotechnical Engineering )Hossam Shafiq I
This document discusses a geotechnical engineering laboratory experiment on determining the moisture-unit weight relationship of soil through compaction testing. It describes the standard Proctor compaction test procedure which involves compacting soil in layers in a mold using a hammer. A compaction curve is plotted showing the relationship between dry unit weight and moisture content, with the maximum dry unit weight and optimum moisture content identified. It also describes the modified Proctor compaction test which simulates higher compaction efforts and the use of compaction test specifications in field construction.
CPM involves drawing a network diagram of activities and their relationships, analyzing paths and determining earliest and latest start/finish times to identify the critical path and calculate slack. Project crashing involves shortening activity durations by incurring costs to potentially reduce the project duration below that of the critical path. An example outlines crashing the critical
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Geotechnical Engineering-II [Lec #20: WT effect on Bearing Capcity)Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Mass-haul diagrams (MHDs) are used to calculate cut and fill volumes and estimate material hauling needs for construction projects. MHDs graphically display cumulative cut and fill volumes along the project centerline. They are used to determine balancing points where cut and fill volumes offset, how much material needs to be imported or exported, and the most economical hauling methods. An example MHD analysis identifies a project's maximum haul distance and calculates how much borrow material is needed to make up the excess fill volume.
The document provides instructions for an assignment asking civil engineering students to submit a 3-5 page report on a mega construction project. The report must include: a summary of the project, stages of construction, type of project and contract, planned vs. actual duration and cost, obstacles faced, and construction methods used. Students are encouraged to use a variety of sources for their research such as engineering magazines, newspapers, books, and websites. Plagiarism is prohibited.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help enhance one's emotional well-being and mental clarity.
The document discusses the key characteristics of construction projects including defined goals, tasks, schedules, and resources. It describes the typical project life cycle stages of preconstruction, procurement, construction, and closeout. It also outlines the main types of construction projects and identifies the main project participants including the owner, design professionals, construction professionals, and project manager. Their typical roles and responsibilities in a project are explained.
This document contains an exercise for a construction project management class. It includes 17 multiple choice and short answer questions about construction project management topics like the project life cycle, types of construction contracts, roles of project team members, and challenges with different project delivery approaches. The document provides guidance to civil engineering students on construction project management concepts and terminology.
This document contains instructions and information for six exercises related to construction project management. It provides details on activities, costs, schedules, cash flows, and calculations to determine things like maximum cash needs, financial charges, profit margins, and rates of return for several small building and infrastructure projects.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help enhance one's emotional well-being and mental clarity.
This document contains information and questions related to construction project management. It includes examples of precedence networks, resource requirements for activities, and questions about scheduling and leveling resources for multiple construction projects. Students are asked to develop resource schedules and histograms that satisfy limited resource availability and project duration constraints.
This document contains an assignment on construction project management. It includes questions about network scheduling, resource planning, and developing work breakdown structures and precedence diagrams for construction projects. The assignment requires analyzing activities, durations, resources, and logic relationships to plan and schedule mock construction projects.
This document contains three questions related to construction project scheduling:
1. The first question provides a table of activities, durations, and crew sizes needed to build 12 houses over 60 days. It asks to create a line of balance schedule and determine when the first roofing team will leave the site.
2. The second question provides a network diagram of activities needed to build a single house. It asks to determine the number of crews needed for each activity to build 5 houses over 24 days and create a schedule showing crew entry and exit dates.
3. The third question provides durations for activities to build a house. It asks to calculate a weekly target rate to complete 30 houses in 85 days, determine the number of
The document discusses contract strategy, which involves selecting organizational and contractual policies to execute a project successfully. It outlines different project objectives, contracting methods, contract types, and factors to consider when selecting a contract type. Contract strategy aims to choose the most appropriate structure and agreements based on priorities like time, cost, performance and risk allocation between the owner and contractor.
Cost-benefit analysis is used to determine if a planned action will have positive or negative outcomes. It quantifies all the benefits and costs to calculate the net impact. Some key applications include deciding whether to hire additional staff, purchase new equipment, or invest cash. A proper cost-benefit analysis involves identifying and monetizing all relevant costs and benefits to help make efficient decisions.
There are several types of construction contracts. Price-based contracts include lump sum contracts, where the contractor is paid a fixed price for the entire project, and unit price contracts, where payment is made based on rates for individual work units. Cost-based contracts include cost plus contracts, where the contractor is reimbursed for costs plus a fee or percentage, and guaranteed maximum price contracts, where the owner's liability is capped but the contractor can retain savings if the project costs less than estimated. The appropriate contract type depends on factors like project scope definition and risk allocation between owner and contractor.
The document provides an overview and examples of PERT/CPM (Program/Project Evaluation and Review Technique/Critical Path Method). It begins with an agenda and motivation for using PERT/CPM for project management. It then provides examples using a network diagram for a project at General Foundry, including calculating expected activity times and variances. It discusses determining the critical path and calculating the probability of project completion times. Finally, it demonstrates calculating early starts, early finishes, late starts, and late finishes for activities in a CPM network.
The document provides an overview of the critical path method (CPM), a technique for scheduling projects. It was developed in the 1950s by the US Navy to consider logical dependencies between tasks. CPM calculates the longest sequence of tasks to complete a project and the earliest and latest each task can start. It determines critical tasks on the longest path. The method breaks a project into tasks, estimates durations, and identifies dependencies to create a schedule and establish critical paths. CPM is a useful tool for project management to optimize schedules and resources.
This document summarizes a project to construct a spectrophotometer. It lists the activities required and their durations, predecessors, resource needs, and costs. It constructs a network diagram and identifies critical paths. Time and cost are analyzed through crashing activities on the critical paths. The optimal completion time is 19 days at a cost of 14718 Birr. Resource leveling is also discussed to smooth resource usage before time crashing.
Scheduling Problems Complete the following problems covering pro.docxkenjordan97598
Scheduling Problems
Complete the following problems covering project scheduling methods.
1. Put the following project management activities in order, by defining immediate predecessors by placing one or more letters in the column labeled “Immediate predecessor”. One of them has been done for you.
Activity
Immediate predecessor
a) Calculate durations along all project paths
b) Calculate Te
c) Define immediate predecessors
h
d) Develop WBS
e) Draw a network diagram
f) Estimate task durations
g) Find the critical paths
h) Generate a complete, detailed task list
i) Identify project objectives
j) Write project scope statement
2. Draw network diagram for the following list of activities and their immediate predecessors. Draw start and end nodes.
Activity
Immediate predecessor
A
--
B
--
C
A, B
D
C
E
C
F
D
G
E
H
F, G
I
C
3. Given the following detailed task list, draw a network diagram, including starting and ending nodes.
Task
Immediate predecessor
A
--
B
A
C
A
D
B
E
C
F
D, E
4. Identify all paths and their summed durations from the following detailed task list.
Task
Estimated duration
Immediate Predecessors
A-define info req
2 wks
-
B- analyze existing infrastruc
1.5 wks
-
C-define network req
1 wk.
B
D-design database
3 wks.
A
E-design network
2.5 wks.
C
F-implement
7 wks.
D, E
G-test
4 wks.
F
H-document database
1 wk.
D
I-user documentation
2 wks.
C
5. What is/are the critical path(s) amongst the following paths through a project?
Path 1: A-B-D = 8.5 mos.
Path 2: B-C-I-J = 10 mos.
Path 3: A-B-E = 5.5 mos.
Path 4: B-F-G-J = 12 mos.
6. What is the shortest possible completion time for a project, given the following paths through a project from start to finish?
A-B-D-F = 14 weeks
A-G = 22 weeks
A-C-H-I-J = 19 weeks
7. Identify all non-critical activities in the project with the following paths:
A-B-C = 22 weeks
B-J-K = 18 weeks
A-B-D-E = 22 weeks
A-B-I = 14 weeks
B-L = 20 weeks
8. Identify all non-critical activities for a project with the following paths
A-B-C = 10 days
A-B-D = 8 days
A-B-E-F = 8 days
A-B-G = 9 days
9. Develop an early start early finish (ES/EF) schedule for the following project.
Activity
Duration
Predecessor
ES
EF
A
Develop specifications
2 wks
B
Design
4
A
C
Documentation
5
A
D
Implementation
8
B, C
E
Testing
4
D
10. Develop an early start, early finish (ES/EF) schedule for the following project.
Activity
Duration
Predecessor
ES
EF
A
Develop specifications
6 wks
B
Design
5 wks
A
C
User Documentation
7 wks
A
D
Implementation
11 wks
B, C
E
Acceptance Testing
8 wks
D
F
Develop marketing literature
8 wks
A
G
Technical documentation
7 wks
B, C, F
PAGE
3
Example Scheduling Problem 1 v3
Before we can schedule a project, we will need to have done the following, in order:
- Identify project objectives
- Write project scope statement
- Develop a WBS
- Generate a co.
0102 Building Planning And Construction Managementguestd436758
The document contains 8 questions related to building planning and construction management. It includes questions on building bye laws and regulations, factors for residential building design, planning of public buildings like cinema theaters and bus stations, objectives and principles of planning, determining optimum cost and time using CPM, planning infrastructure for mechanization, construction equipment like rollers, and processing of aggregates for concrete. Students need to answer any 5 questions out of the 8 questions provided.
0102 Building Planning And Construction Managementguestac67362
The document contains 8 questions related to building planning and construction management. It includes questions on building bye laws and regulations, factors for residential building design, planning of public buildings like cinema theaters and bus stations, objectives and principles of planning, determining optimum cost and time using CPM, planning infrastructure for mechanization, construction equipment like rollers, and processing of aggregates for concrete. Students need to answer any 5 questions out of the 8 questions provided.
This document discusses project management and the critical path method technique. It defines project management as planning, directing, and controlling resources to meet time, cost, and technical constraints. The critical path method allows project managers to identify the critical activities and completion time of a project by determining the earliest and latest times of each activity. The document provides examples of constructing critical path networks and calculating key timing metrics to schedule and control a project.
This document discusses project scheduling and the critical path method (CPM) of scheduling. It provides an example of a 5 activity project network to demonstrate how to calculate:
1) Early and late start/finish times for each activity by performing forward and backward passes through the network
2) Total float for each activity based on the difference between early and late times
3) The critical path, which is the longest path of minimum duration activities that determines the project completion time.
This document contains two questions about project management:
1) It provides time estimates for 9 activities to automate a restaurant billing process and asks to construct an arrow diagram, identify the critical path, expected completion time, early/late start and finish times.
2) It provides time and cost estimates for 8 activities and asks to identify the critical path, activities that must be crashed to meet a 20 week deadline, and the minimum time and associated cost to complete the project.
This document discusses building information modeling (BIM) tools and data formats. It includes the following:
1. A table listing various BIM tools for massing, design, construction management, cost estimation, structural analysis, and energy analysis.
2. A table listing common 3D surface/shape and 3D object file formats used for BIM such as OBJ, IFC, STP.
3. A diagram showing how different engineers and building professionals can collaborate using a shared IFC model during design and construction.
The document discusses project management and critical path method (CPM) for project scheduling. It defines key concepts like activities, events, earliest start time, latest finish time, total float, free float and critical path. Examples are provided to illustrate how to draw a network diagram and use CPM to find the critical path and project duration. The critical path is the longest path of activities from start to finish with no float, and determines the earliest project completion date.
This document discusses project management techniques CPM and PERT. It begins by defining a project and project management. It then discusses network planning methods including CPM and PERT. The four steps to managing a project with these methods are described: describing the project, diagramming the network, estimating time of completion, and monitoring progress. Key concepts like activities, precedence relationships, and events are also defined. The document goes on to provide details on CPM and PERT, including estimating time, determining critical paths, and differences between the two methods.
TADELE ASMARE WHO MANAGES:This project is to construct a spectrophotometer: Adjoining is a list and description of activities for a project constructing (building) a spectrophotometer.
For a complex project, critical path analysis (CPA) can be used to schedule tasks and ensure completion in the minimum time. CPA involves constructing an activity network showing task dependencies and durations. The critical path is identified by calculating the earliest and latest start times for each task - those with no flexibility between the two times lie on the critical path, which must be followed precisely. Applying CPA to a garage construction example found a critical path of A-E-D-F-I-J requiring completion in 32 days. Non-critical tasks had float time allowing flexible scheduling.
The document describes a project with seven activities and provides their:
1) Optimistic, most likely, and pessimistic time estimates. The critical path is determined to be activities A, D, E, I, J, C, H, K with a project completion time of 11 weeks.
2) Logical sequence, normal and crash time and cost estimates. The critical path is activities A, C, F with a total crashing cost of Rs. 41,000.
3) Time estimates for activities A-G to determine the expected project completion time using the network diagram and calculate the probability of completing at least 2 weeks earlier.
The document contains 5 practice problems related to project management:
1) Draw a network diagram for a construction project with 8 activities.
2) Find the critical path for a project with 5 activities and calculate the total variance.
3) Calculate the variance in completion time for the critical path.
4) Calculate probabilities for a project's completion time given its expected time and standard deviation.
5) Determine a software project's expected completion date, total normal cost, and cost to crash one activity by 1 week.
Response of RCC Structure under Influence of Earthquake using EtabsIRJET Journal
This document summarizes a study that performed a nonlinear time history analysis of an 8-story reinforced concrete building under seismic loads using ETABS software. The building was modeled and analyzed according to Indian codes for dead, live, and earthquake loads. Time history analysis was used to determine the building's response in terms of base shear and story displacements under different earthquake records. The results showed that time history analysis is important for accurately evaluating the seismic performance of multi-story reinforced concrete structures.
ASSIGNMENT III
B Tech 8th Semester
Submit it on or before 20th April 2020
01. Construct a network for each of the activities and their precedence relationships are given below:
This document outlines a computer programming course in civil engineering. The course introduces Python programming basics and teaches how to write Python codes to solve various civil engineering problems. The course objectives are to understand Python programming fundamentals and develop Python programs for civil engineering applications. Students will learn Python syntax, data structures, functions, and libraries. The term work involves completing 10 mandatory Python programming assignments on topics like open channel flow, hydrology, structural analysis, transportation, and more. Students will be assessed on their ability to write original Python codes to solve assigned civil engineering problems.
This document discusses construction contracts and equipment costs for an excavation project.
The document contains information about a building project that requires 2000 cubic meters of excavation work. The equipment crew consists of one excavator rented at 700 LE per day and two trucks rented at 300 LE per day each. The crew's production rate is 200 cubic meters per day.
The document then provides an example calculation to estimate the equipment cost per cubic meter for this excavation project. It calculates the contractor's fee under different total project cost scenarios for a target cost construction contract.
This document outlines the process and steps for construction cost estimating. It begins by defining estimating and differentiating it from calculation. It then describes the key steps in the estimating process: planning and scheduling, project study and data collection, preparing method statements, assessing resource outputs, and calculating direct, overhead and total costs. The document provides examples of calculating labor, equipment and material rates. It also discusses different estimating methods and includes an example cost estimate calculation for a bridge project.
This document discusses the tendering process for construction projects. It defines tendering as including: 1) inspecting contract documents, 2) estimating costs, 3) adjusting bids, and 4) submitting tenders. The key components of contract documents are identified as instructions to bidders, drawings, specifications, bills of quantities, contract conditions, and bid forms. The document also outlines the process of estimating tender prices, including calculating direct costs, indirect costs, overhead, and profits. It provides an example of preparing a balanced versus unbalanced bid.
The document discusses various topics related to construction project management. It begins by outlining the key points to include in a curriculum vitae for a job fair, such as personal details, academic progress, interests in civil engineering, and future goals. It then differentiates between construction management and construction project management. Several other construction management topics are defined and discussed, including the parties involved in construction projects, types of construction projects and companies, the project cycle, and project delivery systems.
This document summarizes a study group session on communication management. It discusses communication methods that should be used to provide different types of information to stakeholders, as well as tools that can be used for information distribution and what should be included in a communications management plan. The document contains sample multiple choice questions and answers related to communication management best practices.
This document provides an overview of a PMP study group session on human resource management. It includes 16 multiple choice questions related to topics like recruitment guidelines/policies being constraints, McGregor's Theory X and Theory Y, management styles, types of power, conflict handling approaches, organizational charts, evaluating team effectiveness, establishing ground rules, responsibilities assignment matrices, and challenges of managing virtual teams. The questions are intended to help participants learn about key aspects of human resource management as it relates to project management.
The document provides information on cost management for a project management study group session. It includes questions and answers on topics like estimating activity costs, cost baselines, variance analysis, and earned value management.
Order of Magnitude (+- 25% - 50%)
Reference: PMBOK Third Edition, Page Number: 150
So the given estimate range falls under Order of Magnitude estimate.
17. You are developing the schedule for your project. Which of the following is NOT a
technique used for estimating activity durations?
A. Analogous Estimating
B. Parametric Estimating
C. Three-Point Estimating
D. Schedule Network Analysis
17. You are developing the schedule for your project. Which of the following is NOT a
technique used for estimating activity durations?
A. Analogous Estimating
B. Parametric Estimating
The document discusses scope management in project management. It covers key topics like:
1. Scope management means constantly checking that all required work is completed and not allowing unauthorized changes to scope.
2. The main processes of scope management are scope planning, scope definition which includes creating a project scope statement, developing a work breakdown structure (WBS), scope verification, and scope control.
3. Scope management differentiates between product scope which are requirements related to the project deliverables, and project scope which is the work required to deliver the product.
The document summarizes key points from a session on risk management:
1. The session discussed tools and techniques for risk response planning, including strategies for negative risks and contingent response planning.
2. It provided examples of different types of risks like secondary risks that can arise from implementing a risk response plan.
3. Residual risks that remain after risk responses have been implemented were also explained.
The document summarizes an agenda for a PMP study group session covering professional responsibility and integration management. The session will discuss responsibilities of project managers, key concepts of integration management including the seven processes, and take participant questions. Study group questions will then be presented and answered as a group, covering topics like contract change control systems, addressing inaccurate financial statements, project closure due to lack of funding, documenting risks in the project plan, and using knowledge gained from previous employers.
This document provides an agenda and overview for a Project Management Professional (PMP) study group session on the project framework and project management processes. The agenda includes a summary of the focus on the project framework and processes, an open forum for participant questions, study group questions, and a wrap up. The overview discusses key concepts of the project management framework, including the triple constraint of scope, time and cost, areas of PM expertise, the project management office, and differences between projects and programs. It also discusses project management processes, including the five process groups of initiating, planning, executing, monitoring and controlling, and closing as well as the Plan-Do-Check-Act cycle and the process interactions template.
In 3 sentences
The document discusses critical path method (CPM) network computation and provides examples of activity-on-arrow and activity-on-node network diagrams. It also explains the different relationship types used to define dependencies between activities, including finish-to-start, start-to-start, finish-to-finish, start-to-finish, and start-to-start/finish-to-finish relationships. Lead and lag times are discussed as constraints that can be applied to relationships.
The document appears to be a course syllabus or outline for a construction contracts class taught by Dr. Khalid Al-Gahtani at King Saud University in spring 2008. It includes standard syllabus elements like the course title, instructor information, and page numbers but does not include any other contextual information.
- The document discusses factors that impact contractor cash flow, including payment schedules, materials, mobilization, monthly payments, and final payment.
- It also discusses contractor cash disbursements for labor, equipment, materials, subcontractors, insurance, permits, mobilization, and overhead.
- Methods to minimize a contractor's negative cash flow are presented, such as front-end rate loading, reducing delays in receiving revenue, adjusting work schedules, and coinciding materials deliveries with payment estimates.
The document discusses activities, projects, and bar charts for project scheduling. An activity has a defined start and end time and uses resources. A project is a set of activities with defined objectives, completion date, and budget. A bar chart is a common project scheduling tool that displays activities as horizontal bars placed sequentially according to duration and dependencies. It can identify critical paths where delays could impact the overall project schedule.
This document defines key terms and formulas used in critical path method (CPM) network computation. It discusses the forward and backward pass computations used to calculate the earliest and latest start and finish times of activities. The forward pass uses the earliest start time of predecessor activities to calculate the earliest finish time of each activity. The backward pass uses the latest finish time to calculate the latest start time. Several examples are provided to demonstrate applying CPM calculations to activity networks. Key outputs include identifying the critical path and activities that dictate the minimum project duration.
- The document discusses network scheduling techniques for project management, focusing on the Critical Path Method (CPM).
- CPM uses arrow diagrams to graphically display the planned sequence and dependencies of a project's activities in order to determine the critical path for efficient resource use and project completion.
- The Activity-on-Arrow (AOA) drawing scheme is presented as the original CPM network scheduling technique, with nodes representing start and finish points and arrows representing activities.
The document discusses various topics related to project management functions and motivation. It covers planning, organizing, directing, controlling, and motivation as key project management functions. It also discusses several motivation theories including Maslow's hierarchy of needs, Herzberg's two-factor theory, and John Hunt's goal-based theory. Additionally, it covers leadership styles, teamwork, creativity, problem solving techniques, and decision making processes.
1. The document discusses reasons and methods to reduce project durations, including to earn incentive pay, avoid penalties, and fit contractual timelines. It then describes four common methods: using overtime, adding workers, better equipment, and subcontracting labor.
2. The optimal project duration balances minimizing total project costs, including direct costs from activities as well as indirect overhead costs. The network compression algorithm is used to iteratively shorten the critical path by accelerating individual activities until no further reduction is possible without increasing total costs.
3. An example construction project is provided to demonstrate calculating the least cost project duration using crash costs, indirect costs, and shortening cycles to optimize the project schedule.
1. Mansoura University Construction Project Management
Faculty of Engineering 3rd Year Civil
Structural Eng. Dept. 2006-2007
Exercise 4
Due date: Wednesday, Nov 2nd 2005
1. The free float is defined as:
a. The amount of time an activity can be delayed without affecting the following activity.
b. The amount of time an activity can be delayed without affecting total project duration.
2. Total float equals:
a. Late finish minus early finish c. Late start minus early start
b. Late finish minus (early start + duration) d. All of the above
3. State True (T) or False (F):
a. The critical activities can be determined easily when using the bar chart.
b. The network must have definite points of beginning and end.
c. The network must be continuous from start to end.
d. There’s no dummy activities in the arrow networks,
e. A forward pass is used to determine late start and late finish times.
f. The time for completing a project is equal to the sum of the individual activity times.
4. For the Following project data, answer the following questions:
Activity Duration (days) Predecessor
A 2 --
B 6 A
C 3 A
D 1 B
E 6 B
F 3 C, D
G 2 E, F
a) Draw an AOA network and perform forward and backward pass calculations?
b) Draw an AON network and perform forward and backward pass calculations?
c) Draw a time-scaled diagram of the project?
d) Tabulate activities ES, EF, LS, LF, TF, and FF.
e) What is the effect of delaying activity D by 3 days?
5. For the following AOA network, determine the following:
a. Calculate ES, LF, & TF for all activities. Identify critical ones.
b. Draw an early Bar Chart for the project.
c. What is the effect of delaying activity “H” by two days on the total project duration?
Construction Management 1 Dr. Emad Elbeltagi
2. Mansoura University Construction Project Management
Faculty of Engineering 3rd Year Civil
Structural Eng. Dept. 2006-2007
3 D (8) 9
A (4) H (4)
1 B (6) E (10) 11 I (8) 15 K (5) 17
5
C (2) F (16)
J (10)
7 G (6) 13
6. Perform PDM calculations for the project below and determine activity times. Durations are
shown on the activities
I
(2)
B D G
(4) (1) (1)
A J L
(1) (7) (2)
C E H
(1) (2) (1)
F K
(2) (4)
7. A gas station is proposed to be built on an already developed site. It will consist essentially of
a sales outlet and an office block. The sales outlet comprises of cash office and gas pumps. The
manager’s office building, which also houses public washrooms and an air compressor, is called
the office block. Adjacent to pumps will be a concrete pit that will house the gas tanks.
The entire area, excluding the office and pumps site, is covered with a concrete slab, and there is
a low perimeter wall in the rear. The utility company has undertaken to install an electric meter
on the site and connect it to the mains. Gasoline pumps must be obtained from the
manufacturers, and after being installed, they are to be connected to the gasoline tanks and the
power supply. Before use the local authority to ensure safety and compliance with regulations
must inspect them. Gasoline tanks are housed in concrete pits and covered by concrete slabs.
Before they are covered, however, the tanks and the associated pipe work have to be inspected
by the local authority. The sales outlet base is excavated first, the pipe work and tanks second,
the office block third, and the trench for underground services last. After the excavation for the
tanks and pipe work is completed, work can proceed on the construction of the perimeter wall
and air points.
Compressed air for inflated tires will be supplied by an electrically driven compressor, which
must be inspected by a competent person before the compressor is put into use. The air lines to
Construction Management 2 Dr. Emad Elbeltagi
3. Mansoura University Construction Project Management
Faculty of Engineering 3rd Year Civil
Structural Eng. Dept. 2006-2007
the “free air” points are installed with the general underground services, and the points
themselves are mounted on the perimeter wall. The air pints can be hooked up after the concrete
slab has been poured. Mobilization to start work comprises, among other preparations, the
moving of a trailer to the site to store tools, furnishings, and any weather prone parts and to serve
as the site office. Similarly, when work at the site is completed, the trailer will be removed, and
all scaffolding and construction equipment taken away. This is known as “demobilization and
clean up of site.”
You are required to determine the project duration, critical path(s), and tabulate activity times
(ES, EF, LS, LF, TF, and FF).
No Activity Description Duration
A Excavate for sales outlet 1
B Construct sales outlet base 1
C Construct cash office 2
D Obtain pumps 16
E Install pumps 2
F Connect pumps 1
G Inspector approves pumps installation 2
H Paint & furnish office & washrooms 2
I Connect office & toilet lighting 1
J Excavate for office block 1
K Construct office block 1
L Build office & washrooms + services 15
M Install electric meter 14
N Connect main cable to meter 1
O Install area lighting 4
P Mobilize site 1
Q Set out and level site 1
R Excavate & lay underground services 1
S Excavate for pipes and tanks 1
T Construct concrete pit 2
U Obtain pipes and tanks 2
V Install pipes and tanks 3
W Obtain compressor 10
X Install compressor 1
Y Connect power to compressor 1
Z Inspection of compressor 2
AA Backfill and cover tanks 1
BB Pour concrete slab 2
CC Construct perimeter wall + air points 2
DD Connect air points 1
EE Demobilize and clean site 1
FF Inspection of pipes and tanks 2
Construction Management 3 Dr. Emad Elbeltagi
4. Mansoura University Construction Project Management
Faculty of Engineering 3rd Year Civil
Structural Eng. Dept. 2006-2007
8. For the following list of activities, draw a time-scaled diagram and mark the critical path.
Determine activities ES, EF, LS, LF, FF, and TF.
Activity Duration (days) Predecessor
A 4 --
B 10 A
C 2 A
D 6 C
E 15 B, D
F 4 B, D
G 3 F
H 2 B, D
I 1 E, G, H
J 3 I
K 2 E
L 1 J
M 2 K, L
9. For the following PDM, perform the forward pass and backward pass calculations. Determine
the project duration and critical path. Tabulate the ES, EF, LS, LF, TF, and FF information for
each activity.
E
FF7
7
A SS3, FF4
B SS2
D F SS8
G
10 8 12 FF5 9 12
SS8
J
C 0
SF5
8
FS6
H FF3
I
10 8
Construction Management 4 Dr. Emad Elbeltagi