Optimum design of cantilever sheet pile walls in sandy soils using inverse reliability approach

Babu, Sivakumar GL and Basha, Munwar B (2008) Optimum design of cantilever sheet pile walls in sandy soils using inverse reliability approach. In: Computers and Geotechnics, 35 (2). pp. 134-143.

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Abstract

In this paper an approach for obtaining depth and section modulus of the cantilever sheet pile wall using inverse reliability method is described. The proposed procedure employs inverse first order reliability method to obtain the design penetration depth and section modulus of the steel sheet pile wall in order that the reliability of the wall against failure modes must meet a desired level of safety. Sensitivity analysis is conducted to assess the effect of uncertainties in design parameters on the reliability of cantilever sheet pile walls. The analysis is performed by treating back fill soil properties, depth of the water table from the top of the sheet pile wall, yield strength of steel and section modulus of steel pile as random variables. Two limit states, viz., rotational and flexural failure of sheet pile wall are considered. The results using this approach are used to develop a set of reliability based design charts for different coefficients of variation of friction angle of the backfill (5%, 10% and 15%). System reliability considerations in terms of series and parallel systems are also studied.

Item Type:	Journal Article
Publication:	Computers and Geotechnics
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Failure modes;Optimization;Reliability;Safety factors;Sensitivity analysis;Sheet pile wall.
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	26 Mar 2010 09:38
Last Modified:	21 Feb 2019 11:28
URI:	http://eprints.iisc.ac.in/id/eprint/26561

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