This document provides an overview of the syllabus for a Basic Civil Engineering course. The syllabus covers 5 units: building materials, building components, planning aspects and regulations, water supply and sanitary systems, and surveying and transportation. For the unit on surveying and transportation, the document defines surveying and its objectives and principles, and classifies surveying based on nature, objective, and instruments used. It also defines various modes of transportation like roadways, railways, and waterways, describing their typical cross-sections, components, and classifications.
Highway engineering is an engineering discipline branching out from civil engineering. This subject involves the planning, design, construction, operation, and maintenance of roads, bridges, and tunnels to ensure safe and effective transportation of people and goods. There are certain geological conditions which should be considered while laying the highways. This module give those details in general.
Highway engineering is an engineering discipline branching out from civil engineering. This subject involves the planning, design, construction, operation, and maintenance of roads, bridges, and tunnels to ensure safe and effective transportation of people and goods. There are certain geological conditions which should be considered while laying the highways. This module give those details in general.
Alignment: The position or the layout of the central line of the highway on the ground is called the alignment.
Highway Alignment includes both
a) Horizontal alignment includes straight and curved paths, the deviations and horizontal curves.
b) Vertical alignment includes changes in level, gradients and vertical curves.
A presentation on highway geometric design which includes:
definition,
Goals,
Road Alignment,
Its cross section,
Pavement Design, &
Theory about super Elevation
This presentation deals with all the major steps involved in the survey, selection of the most possible route and the designing of the highway.
It will brief u on all the major topics of highway designing
Alignment: The position or the layout of the central line of the highway on the ground is called the alignment.
Highway Alignment includes both
a) Horizontal alignment includes straight and curved paths, the deviations and horizontal curves.
b) Vertical alignment includes changes in level, gradients and vertical curves.
A presentation on highway geometric design which includes:
definition,
Goals,
Road Alignment,
Its cross section,
Pavement Design, &
Theory about super Elevation
This presentation deals with all the major steps involved in the survey, selection of the most possible route and the designing of the highway.
It will brief u on all the major topics of highway designing
Useful for First year Engineering Students of Savitribai Phule Pune university, Pune (University of Pune) [Common to all Branches]
This PPT shows the details regarding Introduction to Civil Engineering.
This is first Module from the subject Basic Civil and Environmental Engineering. [101005]
Few more PPTs and Videos are available at my blog tusharhsonawane.wordpress.com
Content- Introduction to surveying and leveling
Object and Uses of Surveying, Fundamental Principles of Surveying, Introduction to conventional methods and equipment used for surveying and Leveling
Introduction to modern equipment’s used in surveying- EDM, Total Station, GIS,GPS, Remote sensing, planimeter.
Introduction to Topo sheets and use of maps.
Design & Construction of B.I.T. Driveway (As per rural specification)IJERA Editor
The motive of undertaking this project of “Design & Construction of B.I.T. Driveway (As per rural
specification)” is to study and evaluate the performance in real design and working conditions of the rural road
flexible pavement with IRC:37-2001 and IRC:SP:20-2002. In this paper, the work is carried out to measure the
traffic volume on the top surface of the B.I.T. Driveway. Rural connectivity is taken as one of the major
component in increasing the agricultural output and earning capacity of the rural population. There is a marked
improvement in quality of life by way of better educational facilities, improved health services, improved
attendance by the school teachers as well as students.
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/
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.
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.
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.
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.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
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.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
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.
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
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSE
Unit 5
1. Basic Civil Engineering
( Subject Code: 1150CE101 )
Lecture Slides
By
Department of Civil Engineering
Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
1
2. Syllabus
UNIT I: Building Materials
Introduction – Civil Engineering – Materials – Bricks – Composition – Classifications – Properties – Uses – Stone – Classification of
Rocks – Quarrying – Dressing – Properties – Uses – Timber – Properties – Uses – Plywood –Cement – Grades – Types – Properties –
Uses – Steel – Types – Mild Steel – Medium Steel – Hard Steel –Properties – Uses – Market Forms – Concrete – Grade designation –
Properties – Uses – Advancements in Concrete – Pre-stressed Concrete – Pre fabricated concrete.
UNIT II: Building Components
Building – Selection of site – Classification – Components – Foundations – Functions – Classifications – Bearing Capacity – Flooring –
Requirements – Selection – Types – Cement concrete marble – Terrazzo floorings – Roof – Types and requirements.
UNIT III: Planning Aspects and Regulations
Building types and design criteria – Space standards for residential, commercial and institutional categories – Building by-laws
applicable for approval by the local governing body – Development control rules for Chennai Metropolitan Area. Basic guidelines for
earthquake resistant structures.
UNIT IV: Water Supply and Sanitary Systems
Water supply – Objectives – Quantity/Quality of water –Sources – Standards of drinking water – Distribution system –Sewage –
Classification – Technical terms – Septic tank – Components and functions – layout of external services –water supply – Sewage
disposal – water supply and plumbing layout for a residential building.
UNIT V: Surveying and Transportation
Surveying – Objectives – Classification – Principles of Survey – Transportation – Classification – Cross section and components of
road – Classification of roads – Railway – Cross section and components of permanent way – Functions – Water way – Docks and
Harbors – Classification - Components – Bridges – Components of bridges.
2
3. Unit V: Surveying and Transportation
Surveying – Objectives – Classification – Principles of Survey – Transportation –
Classification – Cross section and components of road – Classification of roads –
Railway – Cross section and components of permanent way – Functions – Water
way – Docks and Harbors – Classification - Components – Bridges – Components
of bridges.
3
4. Surveying
Definition: Surveying is an art of determining the relative positions of points
on, above or beneath the surface of the earth by means of direct (or) indirect
measurements of distance, direction and elevation.
• Survey is performed to prepare a map of relative positions on surface of the
earth. It shows the natural feature of a country such as towns, villages, roads,
railways, etc.
• They may also include details of different engineering works such as bridge,
canal, dam, etc.
• Before commencement of any major engineering project, survey is carried
out to determine the location of site and its surrounding.
4
5. Surveying
Objectives of Surveying:
• To collect field data;
• To prepare plan or map of the area surveyed;
• To analyze and to calculate the field parameters for setting out operation of actual engineering works.
• To set out field parameters at the site for further engineering works.
5
6. Surveying
Principles of Surveying:
(i) Location of a point by measurement from two
points of reference
According to this principle, the relative position
of a point to be surveyed should be located by
measurement from at least two points of reference, the
positions of which have already been fixed.
If P and Q are the two reference points on the
ground, any other point, such as R, can be located by
any of the direct methods shown in the above figures.
6
7. Surveying
Principles of Surveying:
(ii) Working from Whole to Part:
According to this principle, it is always desirable
to carryout survey work from whole to part.
• This means, when an area is to be surveyed, first a
system of control points is to be established
covering the whole area with very high precision.
• Then minor details are located by less precise
methods.
• The idea of working this way is to prevent the
accumulation of errors and to control and localize
minor errors which, otherwise, would expand to
greater magnitudes if the reverse process is
followed, thus making the work uncontrolled at
the end. 7
8. Surveying
Classification of Surveying:
Surveys may be classified based on the Nature of survey, Object of survey and Instruments used.
(i) Classification based on Nature of Survey:
Topographical Survey: They are carried out determine the position of natural features of a region such as rivers,
streams, hills etc. and artificial features such as roads and canals. The purpose of such surveys is to prepare maps and
such maps of are called topo-sheets.
Hydrographic Survey: Hydro-graphic survey is carried out to determine M.S.L. (Mean Sea Level), water spread area,
depth of water bodies, velocity of flow in streams, cross-section area of flow etc.
Astronomical Survey: The Astronomical Survey is carried out to determine the absolute location of any point on the
surface of earth. The survey consists of making observations to heavenly bodies such as stars.
8
9. Surveying
Engineering Survey: This type of survey is undertaken whenever sufficient data is to be collected for the purpose of
planning and designing engineering works such as roads, bridges and reservoirs.
Archeological Survey: This type of survey is carried out to gather information about sites that are important from
archeological considerations and for unearthing relics of antiquity.
Photographic Survey: In this type of survey, information is collected by taking photographs from selected points using
a camera.
Aerial Survey: In this type of survey data about large tracks of land is collected by taking photographs from an aero-
plane.
Reconnaissance Survey: In this type of survey, data is collected by marking physical observation and some
measurements using simple survey instruments.
9
10. Surveying
(ii) Classification based on Objective of Survey:
Engineering Survey: These are carried out for the determination of quantities which will be useful for the designing of
engineering works.
Military or Defense Survey: These are carried out for the preparation of maps of important military areas.
Geological Survey: These are carried out to ascertain the composition of the earth’s crust.
Mine Survey: These are conducted for exploring the mineral wealth below the earth surface.
Archeological Survey: These are executed to prepare maps of ancient cultures.
10
12. Transportation
Transportation contributes to the economic, industrial, social and cultural development of any country.
• Transportation is vital for the economic development of any region since every commodity produced,
whether it is food, clothing, agricultural products, industrial products or medicine needs transportation at
all stages from production to distribution.
• Transportation Engineering is the science of safe and efficient movement of people and goods. It’s a sub-
discipline of civil engineering.
Classification of Transport:
(i) Roadways or Highways
(ii) Railways
(iii) Waterways
(iv) Airways
12
13. Roadways – Cross section
Typical cross section of a
road would consist the
following layers:
(i) Sub soil
(ii) Sub grade
(iii) Base course
(iv) Surface course
(wearing)
13
14. Roadways – Cross section
(i)Sub soil:
It refers to the natural soil or prepared soil on which the loads coming on the road are ultimately
transferred. Hence the Sub Soil should be prepared by compacting it properly by rollers.
(ii) Sub grade:
This layer gives support to the road structure. This should remain dry and stable throughout the year.
Much attention should be given in preparing the sub grade. This layer consists of disintegrated rocks mixed
with gravel.
(iii) Base course:
This layer is constructed in one or two layers consisting of stones mixed with gravel. Bigger stones are
used at the bottom. At the top level, smaller stones mixed with cohesive soil or cement are provided and
thoroughly compacted.
(iv) Surface / wearing course:
It is the topmost layer of the carriage way. It takes the loads directly. This layer is either made of
flexible materials (bitumen or coal tar mixed with stones) or a rigid material (concrete). This layer should
be moderately rough to provide good grip for the vehicles. The top surface of the wearing course is
provided a lateral slope (camber), to drain off the rain water from the road surface quickly and effectively.
14
15. Roadways – Components
The components of roadway would
consist of following:
(i) Pavement or carriage way
(ii) Shoulders
(iii) Kerb
(iv) Footpath
(v) Parking lane
(vi) Fencing
15
16. Roadways – Components
(i) Pavement / Carriage way:
It refers to the path over which the vehicles and other traffic can move lawfully. It also includes the path
way and other related structures like bridges, flyovers, underpasses which make road traveling easier.
Hence, the width of the pavement for a single lane road becomes 3.8mts. In case of multi lane traffic,
the width of each lane should be at least 3.5mts.
(ii) Shoulders:
The width of a road is always extended beyond the road on both sides by a width of at least 2 to 5 mts.
This space acts as a space for moving away any broken down vehicles or parking vehicles in an emergency.
(iii) Kerb:
Within the city limits, to separate the pavements from the footpath, a raised stone (kerb) is provided at
the edge of the pavement. The height of the kerb is normally 15 to 20 cms.
16
17. Roadways – Components
(iv) Footpath:
Apart from vehicles, the pedestrians should also be provided some space for moving at the edge of the
roads. Footpaths should be provided essentially everywhere. The footpath may be in level with the road
surface or slightly raised higher than the road surface.
(v) Parking Lanes:
These are usually provided or reserved on the road edges within a city limit for allowing the vehicles to
be parked conveniently. The parking lanes are distinctively separated by white colour strips so that moving
vehicles do not enter parking lanes.
(vi) Fencing:
Whenever a highway or an expressway passes through urban areas, fencing is provided all along the
road to prevent the cattle and people from entering the traffic zone.
17
18. Roadways – Classifications
As per Nagpur Road Plan, Roads are classified as follows:
(i) National highways
(ii) State highways
(iii) District highways
(i) Major district roads
(ii) Other district roads
(iv) Village roads
Purposes of Road Classification:
• To plan a road network for efficient and safe traffic operation.
• To know the clear information of a particular root in a country.
18
19. Roadways – Classifications
(i) National highways:
• These are the important roads of the country. They connect state capitals, ports and foreign highways.
• They also include roads of military importance.
• They are financed by Central government.
(ii) State highways:
• These are the important roads of a state. They connect important cities and district head quarters in the
state, national highways & state highways of neighboring states.
• They are financed by state government roads and buildings department regarding construction and
maintenance.
19
20. Roadways – Classifications
(iii) District Roads:
• These are the roads within a district. They are financed by Zillaparishads with the help of grants given
by state government.
• Major District Roads are the roads connecting the district heads.
• Quarters, taluk head quarters and other important town in the district production and market centers with
each other and with state & national highways & railways.
• Other District Roads are the district roads of less importance.
(iv) Village Roads:
• They connect villages with each other and to the nearest district road.
• They are financed by panchayats with the help of Zillaparishads and state government.
20
21. Railways – Cross section & Components
Permanent Way:
The finished or completed track of a railway line is commonly known as the Permanent way. The
permanent way consists of following components:
(i) Rail
(ii) Sleeper
(iii) Ballast
(iv) Formation
21
22. Permanent way - Functions
(i) Rail:
• To bear the stresses developed due to heavy vertical loads,
lateral and braking forces, and thermal stresses.
• To provide a hard and smooth surface for the passage of
heavy moving loads with a minimum friction between the
steel rails and steel wheels.
• To transmit load to the sleepers and consequently to reduce
pressure on ballast and formation.
(ii) Sleeper:
Sleepers provides transverse ties on which rails are laid. It
serves as a transverse member in the permanent way. Their
functions are:
• To support the rails firmly and evenly
• To maintain the gauge of the track correctly
• To distribute the weight coming on the rails over a
sufficiently large area of the ballast
• To act as an elastic medium between the rails and the
ballast and to absorb the vibrations of the trains 22
23. Permanent way - Functions
(iii) Ballast:
Ballast is a granular and gritty material placed and packed below and around sleepers.
• Holds sleepers in position and prevents lateral and longitudinal movement.
• Transfer and distribute load from sleepers to large area of formation
• Imparts elasticity and resilience to track for getting proper riding comfort.
• Provides effective drainage to track
• Act as a medium for provision of super elevation in curves of railway tracks.
(iv) Formation:
Sub-grade is naturally occurring soil. It is prepared to support the components of a railway track such
as ballast, sleepers and rails. This prepared surface is also termed as formation. Formations could be in
embankment levels or cuttings. The sub-grade supports railway track from beneath.
23
24. Water ways
Harbor is a protected inlet or branch of a sea where ships can anchor. Harbor engineering is concerned
with planning, construction and maintenance of infrastructure for efficient performance of harbors.
24
25. Water ways – Definition of Terms
Harbor:
• A harbor, in primary sense is a place of refugee or rest. It is a place where safety and hospitality is to be
found. Harbors offer protection to vessels from violent seas. It refers to sheltered sheet of water where
vessels are anchored.
Port:
• The term ‘port’ is used to indicate a harbor where terminal facilities such as stores, landing of passengers
and cargo, etc. are added to it.
• This distinction is used to mark the jurisdiction between, the State and Central Government. The port is
under the State Government and the Harbor is under the Central Government.
Docks:
• Docks are the enclosed area for berthing of vessels to facilitate loading and unloading of cargo and
embarkation and disembarkation of passengers or for repairs, renovations, fueling, oiling, painting and
watering of vessels. 25
26. Water ways – Classification of Harbor
Based on Geographical existence, harbors are classified as follows:
(i) Natural Harbor
(ii) Semi Artificial / Protected Harbor
(iii) Artificial Harbor
(i) Natural Harbor:
• Natural formations affording safe discharge facilities for ships on sea coasts, in the form of creeks and
basins are called natural harbors.
• The factors such as local geographical features, growth of population, development of the area, etc. have
made the natural harbors big and attractive.
• E.x: Sydney, Melbourne and Bombay
26
28. Water ways – Classification of Harbor
28
Natural Harbor Semi Natural / Semi Artificial / Protected Harbor Artificial Harbor
29. Water ways – Classification of Harbor
(ii) Semi-Artificial / Protected Harbor:
• Protected harbors are partly natural and partly artificial.
• Artificial construction of break waters or entrance moles may supplement existing natural features.
• They give protection from wave action to vessels, using or entering harbors.
• Ex: Cape Town, Vishakhapatnam.
(iii) Artificial Harbor:
• Artificial harbors have to be created where there are little or no pronounced natural features.
Breakwaters are constructed on an almost open coastline.
• Ex: Madras.
29
31. Water ways – Components of Harbor
Every harbor should be designed with the following essential components under consideration:
(i) Area for free movements and depth
(ii) Harbor entrance
(iii) Entrance channel
(iv) Light house
(v) Parking, loading and unloading space
(i) Area for free movements and depth:
• It is required to obtain a large area of deep water to give shelter from winds and waves.
• Area depends upon the class of harbor, maximum number of vessels to be accommodated
simultaneously and size of the greatest vessel likely to use the harbor.
• Modern vessels are around 300m long and about 30m wide.
31
32. Water ways – Components of Harbor
(ii) Harbor Entrance:
• Harbor entrance must be wide enough to give access for shipping. However, they should be sited so as to
exclude waves and its impacts as far as possible.
(iii) Entrance Channel:
• Entrance channel in harbors are akin to runways in airports.
• The basic principle should be that the depth should be adequate to permit largest commercial vessels that
frequently use harbors, without undue delay or hazard.
(iv) Light House:
• Light house is a massive structure, normally built of masonry or reinforced concrete.
• It is a tall tower on a high pedestal. In an ideal planning of harbor, the light house should be in alignment with
the central line of entrance channel.
(v) Parking, Loading and Unloading Space:
• Along with railway track and approach roads, sufficient parking and loading and unloading of inland transport
carriers should be provided on port side.
32
33. Bridges
• A bridge is a structure built to span physical
obstacles without closing the way underneath such
as body of water, valley or road for the purpose of
providing passage over the obstacle.
• Based on various factors such as function,
material, structure, etc. different types of bridges
are there.
• Elements of a bridge will vary with respect to each
type of bridge.
33
34. Components of Concrete Bridge
(i) Pile - A concrete post that is driven into the ground to act as a leg or support for the new bridge. It is
driven into the ground using a pile-driver. The pile-driver is a machine that acts similar to a hammer hitting
a nail and drives the pile into the ground.
(ii) Cap - The cap sits on top of a group of piles and will help disperse pressure to the piles below.
(iii) Bent - This is the combination of the cap and the pile. Together, with other bents, act as supports for the
entire bridge.
34
35. Components of Concrete Bridge
(iv) Girders - Girders are like the arms of the bridge. They extend from bent to bent and support the bridge
decking. They also help disperse pressure to the bents.
(v) Decking - The decking is what we would consider the road surface of the bridge. It rests on the girders
which are supported by the bents that are made up of caps and piles.
35