Types- selection of the suitable site for the diversion headwork components
of diversion headwork- Causes of failure of structure on pervious foundation- Khosla’s theory- Design of concrete sloping
glacis weir.
Topics:
1. Types of Diversion Head Works
2. Weirs and Barrages
3. Layout Diversion Head Works
4. Causes of Failures of Weirs and Barrages on Permeable Foundations
5. Silt Ejectors and Silt Excluders
Types- selection of the suitable site for the diversion headwork components
of diversion headwork- Causes of failure of structure on pervious foundation- Khosla’s theory- Design of concrete sloping
glacis weir.
Topics:
1. Types of Diversion Head Works
2. Weirs and Barrages
3. Layout Diversion Head Works
4. Causes of Failures of Weirs and Barrages on Permeable Foundations
5. Silt Ejectors and Silt Excluders
Reservoir Planning: Introduction; Investigations for reservoir planning; Selection of site for a reservoir; Zones of storage in a reservoir; Storage capacity and yield; Mass inflow curve and demand curve; Calculation of reservoir capacity for a specified yield from the mass inflow curve; Determination of safe yield from a reservoir of a given capacity; Sediment flow in streams; Life of reservoir; Reservoir sediment control; flood routing. Various types of Spillways and design.
Topics:
1. Reservoir Classification
2. Investigations
3. Selection of Site for Reservoir
4. Zones of Storage
5. Storage Capacity and Yield
6. Mass Inflow Curve & Demand Curve
7. Calculation of Reservoir Capacity
8. Reservoir Sedimentations
9. Life of Reservoir
10. Selection of Dam
Canal fall- necessity and location- types of falls- Cross regulator and
distributory head regulator- their functions, Silt control devices, Canal
escapes- types of escapes.
This presentation includes the estimation of storm sewage generated as a result of storm/rainfall events. It includes the detailed usage of rational formula for quantity estimation with solved examples.
Topics:
1. Types of Gravity Dam
2. Forces Acting on a Gravity Dam
3. Causes of failure of Gravity Dam
4. Elementary Profile of Gravity Dam
5. Practical Profile of Gravity Dam
6. Limiting height of Gravity Dam
7. Drainage and Inspection Galleries
The vacuum dewatering process basically improves strength, durability, and other properties of concrete by reducing the water-cement ratio immediately after the mix is placed, usually in floors and other flatwork. A Bridgeport, Connecticut vacuum dewatering demonstration, although it involved no new ...
vacuum dewatering system
vacuum dewatering pump
vacuum dewatering box
wellpoint pump systems
dewatering pump system
dewatering pump
dewatering wellpoint
small wellpoint dewatering systems
interesting civil engineering topics
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Reservoir Planning: Introduction; Investigations for reservoir planning; Selection of site for a reservoir; Zones of storage in a reservoir; Storage capacity and yield; Mass inflow curve and demand curve; Calculation of reservoir capacity for a specified yield from the mass inflow curve; Determination of safe yield from a reservoir of a given capacity; Sediment flow in streams; Life of reservoir; Reservoir sediment control; flood routing. Various types of Spillways and design.
Topics:
1. Reservoir Classification
2. Investigations
3. Selection of Site for Reservoir
4. Zones of Storage
5. Storage Capacity and Yield
6. Mass Inflow Curve & Demand Curve
7. Calculation of Reservoir Capacity
8. Reservoir Sedimentations
9. Life of Reservoir
10. Selection of Dam
Canal fall- necessity and location- types of falls- Cross regulator and
distributory head regulator- their functions, Silt control devices, Canal
escapes- types of escapes.
This presentation includes the estimation of storm sewage generated as a result of storm/rainfall events. It includes the detailed usage of rational formula for quantity estimation with solved examples.
Topics:
1. Types of Gravity Dam
2. Forces Acting on a Gravity Dam
3. Causes of failure of Gravity Dam
4. Elementary Profile of Gravity Dam
5. Practical Profile of Gravity Dam
6. Limiting height of Gravity Dam
7. Drainage and Inspection Galleries
The vacuum dewatering process basically improves strength, durability, and other properties of concrete by reducing the water-cement ratio immediately after the mix is placed, usually in floors and other flatwork. A Bridgeport, Connecticut vacuum dewatering demonstration, although it involved no new ...
vacuum dewatering system
vacuum dewatering pump
vacuum dewatering box
wellpoint pump systems
dewatering pump system
dewatering pump
dewatering wellpoint
small wellpoint dewatering systems
interesting civil engineering topics
civil engineering topics for presentation
civil seminar topics ppt
civil engineering seminar topics 2018
best seminar topics for civil engineering
seminar topics pdf
seminar topics for mechanical engineers
seminar topic for civil engineering pdf
ground water hydrology of Ethiopia.
Hydrology means the science of water. The science deals with occurrence, circulation, and distribution of water of the earth and earth’s atmosphere. Practical applications of hydrology are found in such tasks as the design and operation of hydraulic structures, water supply, wastewater treatment and disposal, irrigation, drainage, hydropower generation, flood control, navigation, erosion and sediment control, salinity control, pollution abatement, recreational use of water, and fish and wildlife protection. Hydrology may be considered to encompass all the hydro-sciences, or defined more strictly as the study of the hydrologic cycle, that is, the endless circulation of water between the earth and its atmosphere. Hydrologic knowledge is applied to the use and control of water resources on the land areas of the earth.
As the branch of science, hydrology is concerned with the water in streams and lakes, rainfall and snowfall, snow and ice on the land and water accruing below the earth’s surface in the pores of the soil & rocks. In general sense, hydrology is very broad subject of on inter-disciplinary nature drawing support from allied sciences, such as meteorology, geology, statistics, chemistry, physics and fluid mechanics hydrology is basically an applied science. It can be used in irrigation, drainage, flood control, water supply, etc. To further emphasize the degree (extent) of applicability, this subject is sometimes classified as: The three important phases of the hydrologic cycle are:
Evaporation and evapotranspiration
Precipitation and
Runoff and
The globe has one-third land and two-thirds Ocean. Evaporation from the surfaces of ponds, lakes, reservoirs, Ocean surfaces, etc. and transpiration from surface vegetation i.e., from plant leaves of cropped land and forests, etc. take place. These vapors rise to the sky, are condensed at higher altitudes by condensation nuclei, and form clouds, resulting in droplet growth. The clouds melt and sometimes burst to result in precipitation of different forms like rain, snow, hail, sleet, mist, dew, and frost. A part of this precipitation flows over the land called runoff and part infilters into the soil, which builds up the groundwater table. The surface runoff joins the streams and the water is stored in reservoirs. A portion of surface runoff and groundwater flow back to the ocean. Again, evaporation starts from the surfaces of lakes, reservoirs, and ocean, and the cycle repeats.
• Of these three phases of the hydrologic cycle, namely, evaporation, precipitation, and runoff, it is the ‘runoff phase’, which is important to a civil engineer since he is concerned with the storage of surface runoff in tanks and reservoirs for the purposes of irrigation, municipal water supply hydroelectric power, etc.
Defination Headworks is a civil engineering term for any structure at the head or diversion point of a waterway. It is smaller than a barrage and is used to divert water from a river into a canal or from a large canal into a smaller canal.
A water distribution system is a part of water supply network with components that carry potable water from a centralized treatment plant or wells to consumers to satisfy residential.
Definition, uses, construction material, types of caissons, loads on
caisson, design features of caissons, floating of caissons, cutting edges,
sinking of caisson, tilting of caisson, shifting of caisson, caisson diseases
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
2. What is called Axis of dam?
The line of the upstream
edge of the top (or crown)
of the dam. The axis of the
dam in plan is also called
the base line of the dam.
3. Foundation Treatment for Gravity Dams
The material underlying the base of a dam i.e. the foundation of the dam must be
strong enough and capable to withstand the foundation pressure exerted on it
under various conditions of loading in dry as well as wet conditions.
Most of the failure of the dams have occurred because of the failure of the
underlying strata. Hence foundation treatment is necessary in the case of
concrete gravity dam.
The foundation treatment commonly adopted for all foundation can be divided
into two steps:
1. Preparing the surface
2. Grouting the foundation
4. 1. Preparing the Surface
The surface preparation consist removing the
entire loose soil till a sound bed rock is
exposed. The excavation should be carried out
in such a way that the underlying rock is not
damaged.
The final surface obtained above is stepped, so
as to increase the frictional resistance of dam
against sliding.
If faults, seams or shattered rock zones are
detected in the exploratory geological
investigations, special steps and remedies
must be taken to ensure their removal.
5. 2. Grouting the foundation
The foundation grouting can be divided into
(a) Consolidation Grouting
(b) Curtain Grouting
a) Consolidation Grouting
The entire foundation of the dam is consolidated by grouting.
For this purpose, shallow holes are drilled through the foundation
rock. The depths of these holes generally vary between 10 to 15 m.
They are situated at about 5 to 20 m apart.
After the holes have been drilled, mixture of cement and water
called grout is forced into the holes at low pressure of about 30 to
40 N/ cm2.
This is accomplished before any concreting for the dam section is
laid. This low pressure grouting will result in a general
consolidation of the foundations.
These low pressure grout will later serve the purpose of a cut-off
against leakage of high pressure grout. Which is to be used after
some concreting of the dam has taken place.
6. Consolidation grouting- for obtaining continuous & well
compacted solid rock mass in foundation of dam (before
concreting starts)
7. b) Curtain Grouting
It helps in forming the principal barrier or a curtain against the
seepage through the foundations and reduce the uplift pressure.
Increased seepage path will decrease the value of hydraulic
gradient.
To accomplish this high pressure grouting, relatively deeper
holes are drilled near the heel of the dam.
The spacing of the holes may vary from 1.2 to 1.5 m. Holes are
first of all drilled and grouted at about 10 to 12 m apart and then
the intermediate holes are drilled and grouted.
After the holes have been drilled, a mixture of cement and water
is forced into holes under high pressure.
The grouting pressure may be kept as high as possible without
lifting the foundation strata.
This grouting is generally carried out only after some portion of
the dam section has been laid.
This grouting have to be accomplished from the foundation
gallery.
8. Temperature control in Concrete Dam
Control of concrete temperature to reduce the temperature cracks is one of the main tasks in the concrete
dam construction.
Water cooling is the most effective temperature control measure of concrete dam.
Water pipes are embedded throughout the body of dam and ice water will be circulated through these pipes
once concreting is done.
Galleries provide enough space for carrying pipes during artificial cooling of concrete.
9. What is called Gallery in gravity dam?
Galleries are the horizontal or sloping openings
or passages left in the body of the dam.
They may run longitudinally (parallel to dam
axis) or traversely (normal to the dam axis) &
are provided at various elevations.
All the galleries are interconnected by steeply
sloping passages or by vertical shafts fitted with
stairs or mechanical lifts.
Dam gallery can be constructed in various
shapes as shown in figure.
10. This is how entry would look like in a gallery!!
11. Types of galleries in Dams
1. Foundation Gallery:
A gallery provided in a dam may serve one particular purpose or more than one purpose.
A gallery provided near the rock foundation, serves to drain off the water which percolates through the
foundations. This gallery is called a foundation gallery or a drainage gallery.
It runs longitudinally and is quite near to the upstream face of the dam. Drain holes are drilled from the
floors of this gallery after the foundation grouting has been completed. Seepages is collected through
these drain holes.
Besides draining off seepage water, it may be helpful for drilling and grouting of the foundations when
this cannot be done from the surface of the dam.
2. Inspection Gallery:
The water which seeps through the body of the dam is collected by means of a system of galleries
provided at various elevations and interconnected by vertical shafts. All these galleries besides draining
off seepage water, provide access to the interior of the dam and are therefore called inspection gallery.
12. 3. Aeration Gallery:
It will be provided in very few dams where changes of
negative pressure generation is there due to spilling water
over the spillway.
Sometime the spilling water may flow in such a way that it
losses contact with spillway surface and due to which
separated water start exerting suction (negative) pressure
over spillway surface. Bubble formation will take place in
water. These bubbles will strike the surface due to which
cavitation will start and hence surface erosion will take
place.
To avoid this negative pressure generation we provide a
gallery in which aeration ducts will be provided which will
supply air to the spilling water and hence cavitation will
be avoided on spillway surface.
15. Galleries serve the various purposes which are as under:
1. They intercept and drain off the water seeping through the dam body. Porous holes are provided
in the gallery for collecting this water.
2. They collect water seeping through the foundation and hence decreases the uplift pressure on
dam. Drainage holes are provided in gallery for this purpose.
3. Uplift pressure-meter is provided inside the foundation gallery for measurement of uplift pressure
acting on dam. Uplift pressure instrument-UPI holes are provided for this purpose.
4. They provide access to dam interior for observing and controlling the behavior of the dam.
Ventilation holes are provided inside the galleries for ventilation purpose while inspection of dam.
Hume pipes will be carrying air through air inlets provided on dam surface.
5. They provide enough space for carrying pipes during artificial cooling of concrete.
6. They provide access to under-sluice gate by housing its electrical and mechanical control. All
these under-sluice gates can be easily controlled by men from inside the dam itself.
7. They provide space for drilling and grouting of the foundations when it cannot be done from the
surface of the dam. Generally the foundation gallery is used for this purpose.
16.
17.
18.
19. Reinforcement for Gallery
The provision of a gallery in a dam
body, changes the normal pattern of
stresses in the body of the dam.
Stress concentration may therefore
occur at corners and hence in order to
minimize this stress concentrations,
the corners must be rounded
smoothly.
Tension and compression zones may
be worked out and proper
reinforcements are provided to
counteract them.