Simplified method of fragments based two dimensional seepage solution for the double-wall cofferdam

Madanayaka, Thushara, and Sivakugan, Siva (2016) Simplified method of fragments based two dimensional seepage solution for the double-wall cofferdam. In: Proceedings of the 19th Southeast Asian Geotechnical Conference, pp. 1047-1051. From: SEAGC 2016: 19th Southeast Asian Geotechnical Conference, 31 May - 3 June 2016, Subang Jaya, Malaysia.

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Abstract

Most seepage problems discussed in the literature are simplified as two-dimensional problems. They are solved using flow nets or numerical methods, where it is possible to compute the flow rate, exit hydraulic gradient and pore water pressures within the flow region. Method of fragment is an approximate technique which enables quick estimates of the flow rate, exit hydraulic gradient and pore water pressures based on some simple solutions. The flow is computed in terms dimensionless form factors that reflect the geometry of the flow domain. Design charts have been proposed in the literature for estimating the form factors and the exit hydraulic gradient in the case of a double-walled cofferdam. In this paper, an attempt is made to further simplify the application of the method of fragments to the double wall cofferdam by developing expressions for the necessary form factors and the exit hydraulic gradient in terms of geometry.

Item ID: 44521
Item Type: Conference Item (Refereed Research Paper - E1)
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ISBN: 978-983-40616-4-7
Date Deposited: 20 Jul 2016 01:56
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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