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Pseudo-dynamic analysis of reinforced soil wall subjected to oblique displacement

DSpace at IIT Bombay

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Title Pseudo-dynamic analysis of reinforced soil wall subjected to oblique displacement
 
Creator REDDY, GVN
CHOUDHURY, D
MADHAV, MR
REDDY, ES
 
Subject horizontal slice method
seismic stability
slopes
design
acceleration
resistance
force
sand
geosynthetics
reinforced soil walls
horizontal slice method
oblique force/displacement
pseudo-dynamic seismic stability
factor of safety
 
Description Numerous pseudo-static methods are available for assessing the seismic stability of reinforced soil walls. These methods consider the dynamic effects of earthquake loading by adding a pseudo-static seismic earth pressure component to the static earth pressure force; they do not consider the effects of time or of body waves travelling through the wall. Hence these approaches provide an approximate and conservative solution. This paper considers an alternative pseudo-dynamic method proposed by Steedman and Zeng, and further modified by Choudhury and Nimbalkar, that considers the above effects. Most of the available methods for analysing the stability of reinforced soil walls consider only the axial resistance of the reinforcement to pullout. However, the failure surface in a reinforced soil structure nearly always intersects the reinforcement layers obliquely, and thus subjects the reinforcement to an oblique force imposed by the sliding mass of soil. The seismic stability of reinforced soil walls is investigated, considering the kinematics of this oblique pull. A parametric study quantifies the effects of different soil-wall parameters on the factor of safety of a reinforced soil wall subjected to pseudo-dynamic seismic forces, considering the increase in tension due to oblique pull or displacement.
 
Publisher THOMAS TELFORD PUBLISHING
 
Date 2011-09-01T07:13:02Z
2011-12-26T12:59:32Z
2011-12-27T05:51:49Z
2011-09-01T07:13:02Z
2011-12-26T12:59:32Z
2011-12-27T05:51:49Z
2009
 
Type Article
 
Identifier GEOSYNTHETICS INTERNATIONAL, 16(2), 61-70
1072-6349
http://dx.doi.org/10.1680/gein.2009.16.2.61
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12699
http://hdl.handle.net/10054/12699
 
Language en