玛尔挡水电站边坡岩体宏观力学参数优化反演及应用  

Optimization Back Analysis and Application of Slope Rock Macro-mechanical Parameters of Ma'erdang Hydropower Station

作　　者：周时[1] 黄宜胜[1] 胡耀普 刘玲[1] 左亚[2] 

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002 [2]三峡大学土木与建筑学院,湖北宜昌443002

出　　处：《长江科学院院报》2014年第7期49-52,59,共5页Journal of Changjiang River Scientific Research Institute

基　　金：湖北省教育厅科学技术研究计划优秀中青年人才项目(Q20111203);湖北省宜昌市科学技术研究与开发项目(A2012-302-01);三峡大学硕士学位论文培优基金(2013PY003)

摘　　要：裂隙岩体的变形、强度特性研究以及其力学参数的确定是岩土工程界、工程力学界最为关注的参考指标。在室内试验的基础上,考虑地应力与结构面尺寸、方向、连通率等因素情况下,采用分区分级方法对玛尔挡水电站边坡岩体的宏观力学参数进行优化反演,并将结果应用到三维有限元计算中。计算结果表明:模型采用反演所得宏观参数能够客观、合理反映出边坡整体的安全稳定状况。研究结果为相关参数反演与边坡稳定性研究提供了参考。The deformation and strength characters are the most concerned indicators in the field of geotechnical engineering and engineering mechanics. On the basis of laboratory test and in consideration of geostress,size,direction and connectivity of structural plane,the macro-mechanics parameters of rock slope are obtained by optimization back analysis using dividing and grading method. The results are applied to three-dimensional finite element calculations. Calculation result suggests that the macro-mechanics parameters objectively and reasonably reflect the safety and stability of the slope. This research provides a reference for the back analysis and slope stability research.

关 键 词：裂隙岩体 宏观力学参数 参数反演 有限差分 边坡稳定性 

分 类 号：TV223.1[水利工程—水工结构工程]