Design and Construction of Rail Tracks

8/18/2019 Design and Construction of Rail Tracks

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MODERNISATION OF RAILTRACKS

GUIDED BY: PRESENTED BY:

Mrs.M SHIVA PARVATHI (M-TECH) K MANOJ REDDY (12C91A0144)Hea !" #$e e%ar#&e'# D PRADEEP (12C91A012)

De%ar#&e'# !" CIVI* EN++ J , V N SAI TEJA (12C91A0142)

HITS COE. N SDHEER KMAR(12C91A01/)


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ABSTRACTThe research topic is aimed at to study the design and consruc

railway tracks ,bridges ,buildings ,platforms and other Civil Eworks regarding in modernisation of railways in our country.

Railway Track Engineering presents conventional methods of

construction, maintenance and monitoring, along with modern

sophisticated track machines. It also comprehensively covers d

details and specifications of important track components.


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INTRODUCTION

•Indian railways is more than 1! years old.

• It is largest railway system in the world under one managem

• It is lifeline of our country.

• It is the biggest employer in the world.

•

1"# 1st

railway train $ourneyed distance of %%miles betweento Thana.

• 'riginally, operated by private companies Englishmen.

• 1(%)1(! *'I took over the all the private railways compa


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THE OLDEST INDIAN TRAIN


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INITIAL RAILWAY TRACKS IN IN


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FAILURES IN OLD TRACKS


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*AYIN+ O NE RAI*AYTRACKS

METHODOLOGY


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ORMATION

•

FORMATION TOP• TRACK FOUNDATION

• CESS

• BALLAST

•

SUB-BALLAST• BLANKET


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CONTENTS

•

BALLAST• RAILS

• SLEEPERS

• POINTS OF CROSSING

•

POINTS OF SWITCHES


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,A**AST DETAI*S

• It is the gr!"#r $teri# "s"##% &r'(e! st'!e 'si!g#e !* (!(er+ gr,e# !* s!* #)e* !* !* r'"!* the s#eeers t' tr!s$it the #'* .r's#eeer t' .'r$ti'! #%er/

•Si0e123$$ t' 45$$


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RAI*S

•

The r'##e* stee# se)ti'!s #i* e!* t' e!* i! r#',er s#eeers t' .'r$ ri#6% tr)(s re (!'6!Ri#s/

TYPES OF RAILS

7/ DOUBLE HEADED RAILS

2/ FLAT FOOTED RAILS

8/ BULLHEADED RAILS


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S*EEPERS

• S#eeers re $e$&ers ge!er##% #i* tr!s,erse ri#s+ '! 6hi)h ri#s re 9e* t' tr!s.er the #'*the ri#s t' the &##st !* the s"&gr*e


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TYPES O S*EEPERS

7/ WOODEN SLEEPERS2/ METAL SLEEPERS

8/ CONCRETE SLEEPERS


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IN CONSTRUCTION OF RAIL TRA

SUR;EYING

EARTHWORKS

BRIDGES

TRACKS


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LE;ELLING SUR;EY


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DI;ISIONS IN EARTHWORK

EARTH

WORK

EMBANKMENT

E


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GRADING PERCENTAGE OF BLAMATERIAL

S* IS Se3e Se Per5e'# Pass'6

(78 e6$#)

1. =3 $$ 733

2. 23 $$ >3 - 733

. 73 $$ 48 - >5

4. =/?5 $$ =2 - 4>

:. 2 $$ 2? - 52

. 433 $i)r'! 78 - 85

/. =25 $i)r'! 73 - 82

;. 272 $i)r'! 4 - 22

9. ?5 $i)r'! 8 - 73


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SOIL TYPES

Ideal +oil and oor +oils

Ideal soil properties-

• igh bearing capacity /&C0 in reference to static loads, minor settlement igh &C indynamic loads, due to uneual grain si2e, high structural resistance, and good consol

• Elasticity

•

+table as regards erosion• igh water permeability

• 3ilter criteria w.r.t ballast layer above and sub)soil below

• Cost effectiveness in supply and construction

• 4atural soils are rarely ideal soils.


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Poor Soil properties-

• 4on)cohesive

•5oose Cohesive

• +oft to semi)solid mi6ed soils with various contents of sand,

and water

• It contain solid rocks of irregular si2e, solid rocks with cohes

weathering elements.


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Geometrical requirements for the soil formation

+hould generally meet following reuirements-

• cross fall slope to be atleast 1-#! or #7 with tolerance of !.

• the finished top levels should be within 8 ) #cm

• finished soil surface to be in level in longitudinal direction/ 9

longitudinal base of ;m0, must not show hollow pits, road ve

ruts.• +ide slopes to e6tend in hori2ontal plane, minimum 1! cm be

theoretical finished lines, and later cut and dressed to the spe

dimensions.


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TYPICAL ;ALUES OF SOIL

S!<

T8%e

E32

( N=&&2 )

C,R

>

C

(N=5&)

?%er&

(N=5&2)

S!"#

5 2/5-8/5

Se&s!


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FILLING

COMPACTION


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COMPACTION


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Field Tests :

• ry density &yCalcium Carbide

Core Cutter


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3IE5> TE+T


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QUALITY ASSURAN! T!STS F"R S"ILS

i.


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I4 5?&'@R?T'RA


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THANK YOU

Design and Construction of Rail Tracks

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