The document discusses challenges for road construction in desert, swamp, and black cotton soil areas and proposes solutions. For deserts, roads should avoid loose sand and be located in vegetated areas with coarse sand. Sand dunes are formed by wind patterns. For swamps, roads may require removing undesirable soil, using sand drains to accelerate drainage, or lightweight fill. Black cotton soil is problematic due to swelling and shrinkage, so concrete is preferred over flexible pavement and a low-PI gravel or lime-stabilized layer is needed below the pavement.
In these slides, we talk about infrastructure.
First tells that what is infrastructure. Secondly, its importance. At last, types of infrastructure.
Hope you enjoy our slides.
Thanks.
In these slides, we talk about infrastructure.
First tells that what is infrastructure. Secondly, its importance. At last, types of infrastructure.
Hope you enjoy our slides.
Thanks.
This describes about causes, effects, types of pavement failure.
Failures in flexible pavements can be due to failure of its component layers which undergo distress due to various causes. Types of failures in flexible pavements and repair techniques are discussed.
Objective and classification of highway maintenance works. Distresses and maintenance measures in flexible and rigid pavements. Concept of pavement evaluation: Functional and Structural
This describes about causes, effects, types of pavement failure.
Failures in flexible pavements can be due to failure of its component layers which undergo distress due to various causes. Types of failures in flexible pavements and repair techniques are discussed.
Objective and classification of highway maintenance works. Distresses and maintenance measures in flexible and rigid pavements. Concept of pavement evaluation: Functional and Structural
Railway construction and maintenance - Railways, airports, docks and harbour ...Shanmugasundaram N
RAILWAY CONSTRUCTION AND MAINTENANCE
Earthwork – Stabilization of track on poor soil - Track drainage – Calculation of Materials required for track laying - Construction and maintenance of tracks – Railway Station and yards and passenger amenities-Signalling
Thanx to see our report again and here we talked about concrete just like a roadway but enough information to understand about it. things we talked about are advantages and disadvantages, manufacturing, types, test. Here in every point we compared to asphalt. So if you have any questions or if you have noticed anything you can send a message to me to this email
Alirizgar234@gmail.com
BEARING CAPACITY OF STRIP FOOTING RESTING ON DUNE SANDS STABILIZED BY GROUTIN...IAEME Publication
Extensive dune sand deposits cover specific areas of Iraq. Dune sands are often an environment hazard during strong winds and sand storms particularly in the summer months. A little research has taken place to study the characteristics and the behavior of dune sands. An extensive laboratory testing program was carried out to study the geo technical properties and the behavior of dune sands. The tests include moisture content, classification, compaction, relative density, direct shear, chemical tests. Also, loading tests were carried out on footing model of strip shape (3.2 × 33) cm rested on natural dune sand.
Time, in the globalized world, is one of the most important factors about the economy, science and health. Mankind has made various efforts to use time efficiently for many years. In these studies transport came to the fore and it has become indispensable. In the light of today's technological conditions, air transport is developing at an increasing rate. Every day many aircrafts are produced, which have different speeds, weight and volume, for serve to transport. Therefore to make structures for easy and safe transport need a stable soil. Particularly suitable areas for the airport grounds in cities today, not being physically proper that construction of the airport made on soil with low bearing capacity, swelling potential of an expansive soil, settlement of soil etc, areas. In this study, soil problems encountered in the construction of airports will be explained and a summary of studies on the solution of these problems will be presented.
This document is prepared for our major project submission for B.tech degree. the project deals with improvement of compressive strength of pervious concrete with out affecting its permeability property much.
In this presentation all concepts, needs of urban mass transportation system is explained in well manner. after seeing this presentation you can be able to answer all questions related to mass transportation syatem.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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.
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.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
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.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)
Pdce 170900713008 2721302_bhavya
1. Bhavya S. Patel, M.E.
Transportation Engineering
1
GUJARAT TECHNOLOGICAL UNIVERSITY
TATVA INSTITUTE OF TECHNOLOGICAL STUDIES
“ Roads in Desert, Swampy and Black Cotton Soil ”
Pavement Design, Construction & Evaluation (2721302)
Guided By: Presented By:
Dr. H. R. Varia Bhavya S. Patel (170900713008)
Prit B. Patel (170900713011)
Department of Civil Engineering
M.E. Transportation Engineering Semester 2
April 2018
2. Desert Areas:
Bhavya S. Patel, M.E. Transportation
Engineering2
Deserts are those regions on Earth which are
categorized as having arid climates.
Due to blowing of wind, sand dunes are formed in
deserts.
Each dune type is the result of different wind
patterns, and the presence or lack of vegetation on
the ground.
3. Desert Areas:
Bhavya S. Patel, M.E. Transportation
Engineering3
Due to blowing of wind, sand dunes are formed in deserts.
Types of Sand dunes:
1. Longitudinal sand Dunes:
o parallel to flow
o winds do not have much change in direction
2. Transverse sand Dunes:
o perpendicular to flow
o winds have a change in direction
5. Road location in Desert area:
Bhavya S. Patel, M.E. Transportation
Engineering5
Not preferred where sand is loose and unstable.
Align road where sand is covered by vegetation.
Preference should be given to areas having
coarse sands.
Avoid locating the road on the slopes of sand
ridges– instead locate them on the dunes or the
inter-dunel space.
6. Design:
Bhavya S. Patel, M.E. Transportation
Engineering6
Sections with partial cut and partial fill should be
avoided since they are difficult to maintain.
The dunes were tackled by a excavation, and this
is crucial to excavation and building a rased
surface and foundations for the roads.
7. Bhavya S. Patel, M.E. Transportation
Engineering7
Cuttings should be avoided as much as possible and
high embankments should be avoided in areas subjected
to strong winds.
Low grade material should included for construction
because stones are rarely available in desert.
Gravel can be used for base course and for surface
course in secondary roads.
Sand-bitumen base courses are ideal for deserts
because they do not need stone aggregates and water.
8. Bhavya S. Patel, M.E. Transportation
Engineering8
Built-up spray grout and Dry bound macadam can be
used in deserts due to scarcity of water for water
bound macadam.
This technique consists of two layer composite
construction of crushed coarse aggregate with
application of bituminous binder after each layer and
aggregate on the top of second layer.
Sand bitumen mix consists of sand, bitumen and
filler.
9. Built up spray grout
Bhavya S. Patel, M.E. Transportation
Engineering9
10. Maintenance:
Bhavya S. Patel, M.E. Transportation
Engineering10
Preventing wind erosion on the slopes of the
embankment.
Clayey soils must be used as a thin cover to
foster the growth of vegetations.
Locally available shrubs must be planted on
slopes.
A thin spray of bituminous materials on slopes
where plants have grown, will faster the growth.
11. Roads in Swamp Soil:
Bhavya S. Patel, M.E. Transportation
Engineering11
Areas where there is stagnation of water and soil is
permanently saturated called swamps.
Soil is extremely soft, highly compressible and has very
low strength.
Some swamps fail under their own weight.
The depth of this particular layer may vary from shallow
to deep. For construction of roads, shallow deposits can be
removed and deeper deposits strengthened by suitable
means.
13. Location Guidelines:
Bhavya S. Patel, M.E. Transportation
Engineering13
In most cases, it must be bypassed. If unavoidable, the
road must cross the swamp where its width is narrow and
its shallow.
Proper soil surveys must be carried out to know the
exact characteristics and conditions.
The depth of water and the type of water influencing the
area must be checked.
14. Design Approaches for Swamps:
Bhavya S. Patel, M.E. Transportation
Engineering14
Compared with ordinary soil, for construction of roads in
swamps, special treatment and techniques are to be adopted
depending on the characteristics of the underlying soil.
They are:
Partial or total removal of undesirable material.
Stage construction and surcharge fill.
Use of sand drains.
Use of light weight material.
15. Partial or Total Removal of Swampy Soil:
Bhavya S. Patel, M.E. Transportation
Engineering15
The undesirable material is excavated and
removed. Bog blasting is a method in which a layer
of sand is deposited over the undesirable soil and
the soil below is blasted. The blast disperses the
clay sideways and the resultant cavity is occupied
by the overburden sand.
16. Stage construction & Surcharge Fill:
Bhavya S. Patel, M.E. Transportation
Engineering16
As consolidation takes long time, system of stage
construction is adopted so that embankment settlement
and further construction proceed side by side.
Alternatively, the embankment is constructed to an
elevation higher than the final requirement. The
surcharge so placed accelerates the settlement.
17. Use of Vertical sand drains:
Bhavya S. Patel, M.E. Transportation
Engineering17
Vertical sand drains consist of bore holes of 0.4 to 0.6 m diameter,
dug through the swamps and filled with sand. The depth of the
borehole can be 10m to 20m.
The drains are spaced 2 m to 6 m centre to centre both
transversely and longitudinally. A sand blanket layer of 1 to 1.5 m is
placed on top of the vertical sand drains. The sand drains facilitate
quick removal of water from the soft strata as the embankment load
squeezes the water from the pores. The drainage of water helps in
the following ways: Quick settlement of the bank takes place and
shear strength of soil is increased.
19. Use of light Weight Materials:
Bhavya S. Patel, M.E. Transportation
Engineering19
Settlement can be minimized by reducing the weight of
the embankment. For this, light materials such as cinder, fly
ash and saw dust can be used in embankment.
Since the swampy soil is weak in strength, light weight
material must be used . Cinder is a good solution.
Where the soil is extremely soft, it may be feasible to take
the road over trestles of reinforced cement concrete resting
on deep piles.
20. Black Cotton Soils:
Bhavya S. Patel, M.E. Transportation
Engineering20
As such Black cotton soil has very low bearing capacity
and high swelling and shrinkage characteristics. Due to its
peculiar characteristics, it forms a very poor foundation
material for road construction.
Such soils exhibit changes when the water content
changes and thus the roads become wavy.
As the soil absorbs moisture, the soil loses its supporting
power and the materials in the base sink into the sub
grade.
22. Problems:
Bhavya S. Patel, M.E. Transportation
Engineering22
Having heavy-duty traffic of 4500 commercial vehicles per day and
msa 150 as generally found on our National Highways and taking CBR
value of 2%, total crust thickness of flexible pavement works out to 830
mm which is practically an impossible preposition.
Assuming heavy traffic intensity of 4500 commercial vehicles per day
and msa 150, crust thickness of rigid pavement works out
approximately 300-320 mm, which is about one third of thickness
needed for flexible pavement. Therefore, it sounds reasonable to adopt
cement concrete pavement in Black cotton soil areas. This type of
pavement may save the engineers from day to day maintenance
problems also.
23. Solutions:
Bhavya S. Patel, M.E. Transportation
Engineering23
The most effective way of dealing with such soils
is to provide a suitable layer between the soil and
the stone layer. Minimum thickness – 10 cm.
Material- gravel of low P.I. ,sand or soil stabilized
with lime.
It is also found that soils can be improved by
compaction at water contents slightly above the
optimum.