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软基上复杂土坡稳定可靠度研究
引用本文:陈晓平,孙慕群,吴起星.软基上复杂土坡稳定可靠度研究[J].岩石力学与工程学报,2004,23(6):925-929.
作者姓名:陈晓平  孙慕群  吴起星
作者单位:1. 暨南大学土木工程系,广州,510632
2. 湖北省水利科学研究所,武汉,430070
基金项目:广东省自然科学基金(021145)资助项目.
摘    要:根据土层剖面的随机场模型和简化Bishop法对一软基上防水墙后岸坡进行了可靠度分析。采用JC方法分别计算了不同软基加固方案所对应的复杂土坡最小可靠指标βmin,探讨了土性指标的概率特性和相关性对可靠指标β的影响,根据实测的静力触探成果估计了抗剪强度指标c,φ的自相关距离δu,并评价了δu对土坡稳定可靠度的影响,编制了相应的程序,得出了有益的结论。

关 键 词:软基加固  土力学  土坡稳定  防水墙  可靠度  随机场模型  抗剪强度
文章编号:1000-6915(2004)06-0925-05
收稿时间:2003-11-10
修稿时间:2003-11-30

RELIABILITY STUDY OF COMPLEX SLOPE STABILITY ON SOFT SOIL
Chen Xiaoping,Sun Muqun,Wu Qixing.RELIABILITY STUDY OF COMPLEX SLOPE STABILITY ON SOFT SOIL[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(6):925-929.
Authors:Chen Xiaoping  Sun Muqun  Wu Qixing
Affiliation:Chen Xiaoping1,Sun Muqun2,Wu Qixing1
Abstract:Based on the random field modeling of soil profile and the Bishop routine solution,the stability reliability of a practical complex slope behind waterproof wall is studied. By JC method,the reliability index b of different improvement plan for soft foundation is respectively calculated. The influence of probabilistic property and cross-correlativity of soil properties on reliability index is analyzed. From the results of static cone penetration test,the self-correlation distance ud of c and jis estimated,and the influence of udon slop stability reliability is investigated. The developed computer program on reliability of the complex slope stability is worked out and some valuable conclusions are drawn.
Keywords:soil mechanics  slope stability  reliability index  random field modeling  self-correlation distance
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