Presentation Geotextile(November 2010).ppt

7/23/2019 Presentation Geotextile(November 2010).ppt

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A Presentation

On

Geo Textiles : Perspectivefrom the Construction Sector

By

D C DE

CONSULTNG ENGNEE!NG SE!"CES #NDA$ P!"ATE L%TED

&EDE!ATON O& NDAN C'A%(E!S O&

CO%%E!CE AND NDUST!)

*+ Novem,er -.*.


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Geo Drains Geo Separations

%SE!einforcement

Geotextile Applications in !oa/s


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AST% D001+ /efine/ a 2eotextile as follo3s

Geotextile : A permea,le 2eos4nthetic comprise/

solel4 of textiles5 Geotextiles are use/ 3ith

foun/ation6 soil6 roc76 earth6 or an4 other

2eotechnical en2ineerin28relate/ material as an

inte2ral part of a human8ma/e pro/uct structure6

or s4stem5

Due to the ver4 3i/e ran2e of applications an/ the

tremen/ous variet4 of availa,le textiles havin2

3i/el4 /ifferent properties6 the selection of aparticular /esi2n metho/ or /esi2n philosoph4 is

a critical /ecision that must ,e ma/e ,efore the

actual mechanics of the /esi2n process are

initiate/5


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Geotextile &unctions an/ %echanisms

An overvie3 of 2eotextiles6 allu/e/ to man4

applications fallin2 into cate2ories:

Separation

!einforcement

&iltration

Draina2e

Containment

9hen properl4 i/entifie/6 lea/ to the /esi2n8,48

function metho/5


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Geotextile choices as availa,le

*5 Li2ht3ei2ht 9ovens-5 'eav43ei2ht

9ovens

15 'i2h &lo3 9ovens05 'i2h Stren2th

9ovens

5 Thermall4 (on/e/

Non83ovens;5 Nee/le punche/ Non3ovens


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Separation


(ituminious

Courses

A22re2ate

(ases

Geotextile

La4er

Su,2ra/e


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&iltration an/ Draina2e


(ituminious Courses

A22re2ate (ases

Geotextile La4er

A22re2ate Draina2e

La4er

Su,2ra/e


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!einforcement


This is the s4ner2istic improvement in the totals4stem stren2th create/ ,4 the intro/uction of a

2eotextile into a soil an/ /evelope/ primaril4

throu2h the follo3in2 three mechanisms:

One6 lateral restraint throu2h interfacial friction

,et3een 2eotextile an/ soil


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Sealin2 &unction


Ne3 Overla4

!eflective Crac7

3ithout Pavin2 &a,ric

Ol/ Pavement

(ase Course


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%a=or Applications of Geotextiles

Separation of Dissimilar %aterials

(et3een su,2ra/e an/ stone ,ase in pave/ roa/s

an/ airfiel/s(et3een lan/fills an/ stone ,ase courses(et3een 2eomem,ranes an/ soil /raina2e la4ers(et3een foun/ation an/ em,an7ment soils for

surchar2e loa/s(et3een foun/ation an/ em,an7ment soils for

roa/3a4 fills

(et3een foun/ation an/ encapsulate/ soil la4ers(et3een foun/ation soils an/ ri2i/ retainin2 3alls(et3een slopes an/ /o3nstream sta,ilit4 ,erms(eneath precast ,loc7s an/ panels for aesthetic

pavin2 e525 har/scapin2


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Separation of Dissimilar materials

(et3een /raina2e la4ers in poorl4 2ra/e/ filter

,lan7ets(et3een ol/ an/ ne3 asphalt la4ers

!einforcement of 9ea7 Soils an/ Other %aterials

To reinforce em,an7ments

To ai/ in construction of steep slopesAs ,asal reinforcement over soft soilsTo ,ri/2e over crac7e/ or =ointe/ roc7To create more sta,le si/e slopes /ue to hi2h

frictional resistance


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&iltration #Cross8Plane &lo3$

(eneath stone ,ase for pave/ roa/s an/ airfiel/sAroun/ crushe/ stone surroun/in2 un/er /rainsAroun/ perforate/ un/er /rain pipe

As a flexi,le form for restorin2 scoure/ ,ri/2e pier,earin2 capacit4(et3een ,ac7fill soil an/ 3eep holes in retainin2

3alls

(et3een ,ac7fill soil an/ 2a,ionsAs a filter ,eneath precast ,loc7s


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Draina2e #n8Plane &lo3$

As a /rain ,ehin/ a retainin2 3allAs a /rain at the ,ase of retainin2 3allAs a replacement for san/ or 3ic7 /rains


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These are 2eocomposites forme/ of a hollo3 core/6

2eotextile 3rappe/ /raina2e element #2eonet$ inserte/verticall4 into soft 2roun/ to spee/ up the

consoli/ation process5

Prefa,ricate/ "ertical Drain nstallation of P"D

(an/ Drains < Prefa,ricate/ "ertical Drains #P"D$


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>an/la Port ? Groun/ improvement

(an/ /rains has ,een a/opte/ to increase the ,earin2

capacit4 of the site5 The follo3in2 parameters have

,een a/opte/:

Scheme S(C,efore

treatment#T


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at >ol7ata


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Emer2in2 ssues

!D Nee/s of the n/ian Geotechnical n/ustr4

The Nee/ to Encoura2e the Domestic S4nthetic

%anufacturin2 n/ustr4

Nee/ for Esta,lishin2 a Geos4nthetic nstitute in

n/ia

Stan/ar/iBation in the &iel/ of Geos4nthetics

Geos4nthetics Test Stan/ar/s an/ Specifications


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Presentation Geotextile(November 2010).ppt

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