Drained Elastoplastic Solution for Cylindrical Cavity Expansion in -Consolidated Anisotropic Soil
Publication: Journal of Engineering Mechanics
Volume 143, Issue 11
Abstract
This paper presents a semianalytical solution for drained expansion of a cylindrical cavity in -consolidated clay. The solution is derived based on the -based anisotropic modified Cam-clay model (-AMCC), which can properly consider the initial stress anisotropy and the initial stress-induced anisotropy of natural soils. Parametric studies are carried out to investigate the effects of different overconsolidation ratios on the growth of plastic zone and cavity pressure, the distributions of the stress components and the specific volume around the cavity, and the effective stress path. The results are compared with the published solution based on the modified Cam-clay model to study the effects of the initial stress anisotropy and the initial stress-induced anisotropy on the cylindrical cavity expansion. The present solution provides a more realistic interpretation for practical geotechnical engineering problems such as pressuremeter tests and cone penetration tests.
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Acknowledgments
This research work was supported by the National Natural Science Foundation of China (with Grant Nos. 41272288 and 41572267). The anonymous reviewers’ comments have improved the quality of this paper and are also greatly appreciated.
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Published In
Journal of Engineering Mechanics
Volume 143 • Issue 11 • November 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jul 28, 2016
Accepted: May 24, 2017
Published online: Sep 11, 2017
Published in print: Nov 1, 2017
Discussion open until: Feb 11, 2018
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