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典型岩石和土的Skempton系数特征
引用本文:卢应发,郑俊杰,柴华友.典型岩石和土的Skempton系数特征[J].岩石力学与工程学报,2005,24(11):1847-1851.
作者姓名:卢应发  郑俊杰  柴华友
作者单位:1. 华中科技大学,土木工程和力学学院,湖北,武汉,430074
2. 中国科学院,武汉岩土力学研究所,湖北,武汉,430071
摘    要:在理论分析和试验研究基础上,主要探讨了具有典型代表性的岩石和土(砂岩、粘土、重塑土)在饱和非排水状态下、在不同围压下和不同加载率下Skempton系数的变化规律以及发生这种规律的基本原因。提出了对结构性较强的孔隙介质,必须加以考虑水的压缩性的基本观点,这种研究对三峡库区岩体和土体的力学特性和坝基及堤防施工具有重要的指导意义。

关 键 词:岩石力学  饱和  非排水  Skempton系数  水的压缩性
文章编号:1000-6915(2005)11-1847-05

CHARACTERISTICS OF SKEMPTON COEFFICIENT OF REPRESENTATIVE ROCK AND SOIL
LU Ying-fa,ZHENG Jun-jie,CHAI Hua-you.CHARACTERISTICS OF SKEMPTON COEFFICIENT OF REPRESENTATIVE ROCK AND SOIL[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(11):1847-1851.
Authors:LU Ying-fa  ZHENG Jun-jie  CHAI Hua-you
Affiliation:LU Ying-fa1,ZHENG Jun-jie1,CHAI Hua-you2
Abstract:The fundamental characteristics of Skempton coefficient have been studied based on the theoretical analyses and laboratory under the undrainage. Some tests have been performed under the different conditions,for instance,different confining pressures and different loading types. The mechanism of Skempton coefficient change has also been investigated. That the compressibility of water cannot be neglected is proposed for the calculation of civil engineering. It is very important for the research of mechanical properties of rock mass and soil mass in the Three Gorges reservoir,and in the construction of dam foundation and embankment.
Keywords:rock mechanics  saturation  undrainage  Skempton coefficient  compressibility of water
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