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Rock Mechanics and Rock Engineering

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19-04-2015 | Original Paper

An Elastoplastic Model for Partially Saturated Collapsible Rocks

Author: Jianjun Ma

Published in: Rock Mechanics and Rock Engineering | Issue 2/2016

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Abstract

A unified elastoplastic model for describing the stress–strain behavior of partially saturated collapsible rocks is proposed. The elastic–plastic response due to loading and unloading is captured using bounding surface plasticity. The coupling effect of hydraulic and mechanical responses is addressed by applying the effective stress concept. Special attention is paid to the rock–fluid characteristic curve (RFCC), effective stress parameter, and suction hardening. A wide range of saturation degree is considered. The characteristics of mechanical behavior in partially saturated collapsible rocks are captured for all cases considered.

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Title: An Elastoplastic Model for Partially Saturated Collapsible Rocks
Author: Jianjun Ma
Publication date: 19-04-2015
Publisher: Springer Vienna
Published in: Rock Mechanics and Rock Engineering / Issue 2/2016
Print ISSN: 0723-2632
Electronic ISSN: 1434-453X
DOI: https://doi.org/10.1007/s00603-015-0751-9

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