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Piles in rock: Socket resistance estimation using JRC and fractal dimension

DSpace at IIT Bombay

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Title Piles in rock: Socket resistance estimation using JRC and fractal dimension
 
Creator ANTONY, B
VENKATACHALAM, G
DODAGOUDAR, GR
 
Subject roughness
profiles
 
Description Socket resistance contributes significantly to pile capacity. In the present work, an approach is presented for estimating the capacity of side-resistance-only piles socketed in rock by considering the effect of interlocking in terms of JRC and Fractal Dimension. Unlike available methods of quantification of roughness of surfaces, Fractal geometry allows the description of irregular shapes. A correlation is established between JRC and Fractal Dimension (D). This is used to estimate socket contribution and predict pile capacity based on an iterative procedure. Here the axial load is calculated by incrementing vertical displacement along the interface and estimating the shear strength mobilised at the interface using above correlation. Pile socket data reported in literature is used for validating the approach. The study is then extended to piles socketed in weathered rock in Mumbai region. The results show that it is feasible to make a reliable estimate of the socket strength contribution.
 
Publisher A A BALKEMA PUBLISHERS
 
Date 2011-10-27T08:18:22Z
2011-12-15T09:12:23Z
2011-10-27T08:18:22Z
2011-12-15T09:12:23Z
1999
 
Type Proceedings Paper
 
Identifier NINTH INTERNATIONAL CONGRESS ON ROCK MECHANICS, VOLS 1 & 2,997-1000
90-5809-070-1
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16233
http://hdl.handle.net/100/2638
 
Source 9th International Congress on Rock Mechanics,PARIS, FRANCE,AUG 25-28, 1999
 
Language English