文章基本信息

标题：An extended generalized effective stress for active clays
本地全文：下载
作者：Angelica Tuttolomondo ; Alessio Ferrari ; Lyesse Laloui 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2020
卷号：195
页码：2004-2007
DOI：10.1051/e3sconf/202019502004
出版社：EDP Sciences
摘要：An effective stress concept for active clays is formulated to improve the modelling of these materials under a variety of environmental conditions. In particular, the mechanical effects induced by a change in the chemical potential of pore water associated with a change of its pressure (even in the negative range), as well as a change of its chemical composition, are considered. Some implications of the proposed framework are shown with reference to shear strength results related to unsaturated conditions. The proposed approach allows to describe the shear strength envelope consistently by using a unique set of shear strength parameters irrespective of the pore water chemical composition and of the saturation state.