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A semi-analytical solution for consolidation around a spherical cavity in an elasto-plastic medium and its potential application for tunneling.

Osman, A.S. and Rouainia, M. (2014) 'A semi-analytical solution for consolidation around a spherical cavity in an elasto-plastic medium and its potential application for tunneling.', International journal of computational methods., 11 (02). p. 1342010.

Abstract

An analytical solution for consolidation around spherical cavity contraction is developed. This solution has the potential to evaluate consolidation around tunnel heads. The initial excess pore water pressure immediately after the creation of the cavity is estimated from the cavity expansion/contraction theory using a linear-elastic-perfectly-plastic soil model. Expressions for the decay of pore water pressure with time are obtained using elasticity. Curves showing the variation of pore water pressure with time are plotted in nondimensional form. Comparison with two-dimensional coupled stress-pore pressure finite element analysis shows that the proposed semi-analytical solution can successfully predict the poro-elasto-plastic behavior around spherical cavity.

Item Type:Article
Keywords:Cavity contraction, Analytical solution, Elasto-plasticity, Consolidation, Tunnel
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1142/S0219876213420103
Publisher statement:Electronic version of an article published as International journal of computational methods, 11, 2, 2014, 1342010, 10.1142/S0219876213420103, © World Scientific Publishing Company, http://www.worldscientific.com/worldscinet/ijcm
Date accepted:24 September 2013
Date deposited:13 January 2016
Date of first online publication:06 January 2014
Date first made open access:No date available

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