USE OF GEOTEXTILE IN RAILWAY
NAME-PRASANJIT ROY SCO. NO.-15-21-409 MTECH GEOTECHNICHAL ENGINEERING NATIONAL INSTITUTE OF ENGINEERING,SILCHAR
SINTRODUCTION Geo textile / Geo synthetics a Polymer based product of Polypropylene, Polyester, PVC, Polyamide, Polyethylene.
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Various types of Geo synthetics Geo textiles Geo grids Geo nets Geo cell Geo membranes Geo composites Prefabricated Vertical Drains (Band Drains
FUNCTIONS •
OF GEOSYNTHETICS
Geo-synthetics improe mech!nic!" !n# hy#r!$"ic %eh!io$r o& &orm!tions'
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(!sic &$nctions o& )eo-synthetics*
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Sep!r!tion
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Fi"tr!tion
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Dr!in!)e
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Rein&orcement
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(!rrier
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(!s!" L!yer
App"ic!tion In R!i"+!y Steep S"ope Constr$ction , Non R!i"+!y Lo!#in) Em%!n.ment S"ip rep!irs Constr$ction o& hi)h %!n.s on so&t soi" Erosion contro" o& s"ope /rotection !)!inst roc. &!""s Tr!c. (e# Desi)n Rein&orce# E!rth Em%!n.ment Form!tion Reh!%i"it!tion
App"ic!tion In R!i"+!y ,Open-"ine 0 Reen$e "ine •
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IR is $p)r!#in) in&r!str$ct$re to meet &$t$re #em!n# o& hi)her !1"e "o!# tr!2c' A%o$t 344 .m tr!c. is on +e!. &orm!tion ! c!$se o& %!""!st penetr!tion5 hi)her
&$e" cons$mption5 p!ssen)er #iscom&ort5 e1tr! m!inten!nce cost to tr!c. !n# ro""in) stoc.'
! "ehabilitation / strengthening of such trac# can help to eliminate speed restrictions.
Constr$ction o& RE Em%!n.ment
(!n# #r!ins inst!""e# !%oe initi!" em%!n.ment
GEOSYNT6ETICS A//LICATION IN RAILWAY FOR7ATION
/RO8ECT : 8A77U-UD6A7/UR RAIL LIN9' At .m :;04;< ne!r %ri#)e no =>? in U#h!mp$r y!r#5 em%!n.ment constr$cte# +ith <: m hei)ht '
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D$e to sp!ce constr!int !n# c"ose pro1imity o& irri)!tion c!n!" !n# T!+i rier !t the %ottom o& hi""5 not possi%"e to proi#e #esi)ne# s"ope o& ?':6 * =@'
• RE s"ope +!s constr$cte# +ith Uni!1i!"
Geo)ri# o& s"ope o& =': 6 * =@'
Geo-)ri# in IR
Bi!i" #$%#&i' () *$$+ )$' i+ S%( C$+&" Ri"/, N%&($&+ Ri"/ P%"/&%/"$+$ )&$+#( 30 N6 i( $&&$ )i7$ %8 166 ! 166 8%& 8%&6i%+ &$(*i"ii%+.
Fi$"' %*)$&;i%+) %+ SCR < NR i+'i=$ i6&%;$6$+ i+ %;$&"" &= $&8%&6+=$ 8$& ($ "i=i%+ %8 #$%#&i'.
Geo-)ri# Geote1ti"e on IR
NF Ri"/ () &i$' )$ %8 G$%-#&i' P%"/$)$& *)$' +i$' < =%$' i( )&$+#( %8 40 N6 < $&&$ )i7$ %8 2566!2566 i+ =%6*i+i%+ %8 #$%-$!i"$ +' )+' "/$& 8%& 8%&6i%+ &$(*i"ii%+. T($ $&8%&6+=$ &$%& %8 ($ &i" )$=i%+ i) )i)8=%&/.
F%& "% '$+)i/ &%$), #$%$!i"$ "%+# i( )+' "/$& +' *&i= )%"i+# () *$$+ )$' i+ Si6&(i >&*+#( &%?$=, ECR.
CURRENT /RO8ECTS WIT6 GEO-SYNT6ETICS Iss$es Ino"e#
A$&&$ )i7$ %8 Bi-!i" #$%#&i'
J+=i%+
)&$+#(
Material type
WORLD RAILWAY /RACTICE ON USE OF GEOSYNT6ETICS G$%-)/+($i=) *$i+# )$' %+ 6+/ %&"' &i"/).
Americ!n R!i"+!ys
U)$ %8 #$%-)/+($i=) i) %+ $!$&i6$+" *)i) +' )$=i@= % ($ +&$ %8 &%*"$6. S$=i@=i%+ %8 #$%-)/+($i=) i) i+ '&8 )#$.
A$str!"i!n R!i"+!ys
)$=i8/ )$ %8 #$%$!i"$ +' G$%#&i' 8%& &$=%+'ii%+i+# &$(*i"ii%+ %8 $!i)i+# &= >&8 #i'$"i+$.
UIC B E$rope!n R!i"+!ys
UIC =%+)i) %8 'i$&$+ &i"/). T($i& "%'i+# =%+'ii%+) &$ 'i$&$+ 8%& 'i$&$+ &i"/) +' *)$' %+ ($ )%i" /$.
CURRENT •
/roects o& GEO- SYNT6ETICS
RAILWAY BUDGET SPEECH(20102011!LAY EMPHASIS "# $%e &' $te)e&te*tile i% t& e+,a+-e. '&r '&r/ati&+ re,ailitati&+ $+.er tra-(Re,ailitati&+! Pr&3e-t 4it, IIT56,ara)p$r '&r i/pr&7i+) te+%ile %tre+)t, &' 3$te )e&te*tile 4it, synthetic polymers. Pr&3e-t 4it, $$%/Delhi to study e,a7i&r &' .i''ere+t Ge& %y+t,eti-% t& e $%e. i+ Rail4ay 8&r/ati&+%97ali.ati&+ t,r&$), La /&.el: 8EM /&.el ; %ite /ea%$re/e+t%
Recent Doc$ment!tion on Geo-synthetics in IR
>&8 Gi'$"i+$) 8%& )$ %8 G$%-)/+($i=) %+ I+'i+ Ri"/) () *$$+ &$&$' */ R>SO &%;i)i%+" )$=i@=i%+) %8 ;&i%) #$%)/+($i=) i$6) *)$' %+ &$"$;+ "i$&&$ )&;$/.
E!$+'$' @$"' &i") %+ #$%#&i' &$ *$i+# '%+$ %+ IR % ;"i'$ < ))$)) ($ )$=i@=i%+) %8 #$%#&i'.
FOR INDUSTRY G$%-)/+($i=) =+ @+' i) )$ i+ &i"/ "i=i%+ 8%&
&= *$' )*i"i7i%+,
&= '&i+#$, $&%)i%+ =%+&%", i+$&8=$ &%$=i%+, =%+)&=i%+ %;$& )%8 )%i",)$$ )"%$ =%+)&=i%+, 6' 6i+#, $=.
T($&$ i) +$$' % '$;$"% =%) $$=i;$ $)/ % "/ #$%-)/+($i=) 8%& "i=i%+ i+ =%+)&=i%+ %8 +$ 8%&6i%+) < &$(*i"ii%+ %8 $!i)i+# 8%&6i%+) 8%& &++i+# %8 ($;/ !"$ "%') +' (i#( )$$' &i+).
IR "%% 8%&&' =i;$ &i=ii%+ %8 i+')&/ i+ (i) )$=%&.
