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Relationship between soil structural parameters and strength and its application in slope stability analysis
Author(s): CHEN Changlu1, 2, SHAO Shengjun1, DENG Guohua1(1.instituteofgeotechnicalengineering, XI Anuniversityoftechnology, XI An710048, china, 2. Schoolofcivilengineering, HENAN Polytechnicuniversity, JIAOZUO 454000, china)
Pages: 328-
334
Year: 2010
Issue:
1
Journal: Journal of Central South University of Technology
Keyword: 结构性参数; 强度; 边坡稳定; 强度折减法;
Abstract: 在合理评价土结构性变化规律的基础上,建立结构性参数与强度之间的关系,进而基于强度折减法对边坡的稳定性进行分析。研究结果表明:结构性参数与凝聚力呈近似的双曲线变化规律,而内摩擦角基本不变;当结构性参数为1时(正常固结土),凝聚力为0;边坡的稳定性与结构性参数密切相关;当强度折减系数达到一定值时,在滑动面附近结构性参数显著减小,并形成一个贯穿区域,此时,折减系数即为边坡的安全系数,贯彻区域即为临界滑动面。
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