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软弱结构面粒度成分与抗剪强度参数的关系探讨
引用本文:唐良琴,聂德新,任光明.软弱结构面粒度成分与抗剪强度参数的关系探讨[J].力学学报,2003,11(2):143-147.
作者姓名:唐良琴  聂德新  任光明
作者单位:成都理工大学环境与土木工程学院,成都610059
基金项目:国家自然科学基金资助项目(编号:40072090).
摘    要:软弱结构面一直是水电工程建设中的一个重要工程地质问题, 选取合理的力学参数对大坝建基面的选取及未来坝基抗滑稳定性具有重大意义。本文在大量试验资料基础上, 研究了沉积岩地区某重力坝电站坝址区软弱夹层粒度成分和抗剪强度参数之间的相关关系, 建立了不同稠度状态下的相关方程。并结合《混凝土重力坝设计规范》中提出的用粒度成分定量指标选取软弱结构面抗剪强度参数, 对软弱结构面抗剪强度参数取值问题进行了探讨。

关 键 词:结构面  软弱夹层  夹泥  粒度成分  抗剪强度
收稿时间:2002-08-31
修稿时间:2002-12-09

DISCUSSION ON THE RELATIONAL BETWEEN GRANULOMETRIC COMPOSITION AND SHEAR STRENGH PARAMETER OF WEAK STRUCTURAL PLANE
TANG Liangqin,NIE Dexin,REN Guangming.DISCUSSION ON THE RELATIONAL BETWEEN GRANULOMETRIC COMPOSITION AND SHEAR STRENGH PARAMETER OF WEAK STRUCTURAL PLANE[J].chinese journal of theoretical and applied mechanics,2003,11(2):143-147.
Authors:TANG Liangqin  NIE Dexin  REN Guangming
Institution:Institute of Engineering Geology, Chengdu University of Technology,Chengdu 610059
Abstract:The weak structural plane is an important engineering-geological problem in construction of hydroelectric project. To choose rational mechanical parameters is of great significance for determining the dam foundation surface and the stability against sliding. In this paper, the correlation between granulometric composition and shear strength parameter weak interlayer in sedimentary rocks is studied, and the correlation equations are established for different consistency states. Finally, in combination with quantitative indexes determinied in the code for ”Design of Concrete Gravity Dams”, the shear strength parameters of weak structural plane are determinied.
Keywords:Structural plane  Weak interlayers  Intercalated gouge  Granulometric composition  Shear strength
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