| 岩体结构面强度的可靠度分析 |
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| 引用本文： | 刘东升,张浪,宋强辉,杨凯.岩体结构面强度的可靠度分析[J].岩土力学,2009,30(2):328-332. |
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| 作者姓名： | 刘东升 张浪 宋强辉 杨凯 |
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| 作者单位： | 1. 后勤工程学院,军事建筑工程系,重庆,400041
2. 后勤工程学院,军事建筑工程系,重庆,400041;国防科技大学,航天与材料工程学院,长沙,410073 |
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| 基金项目： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室开放基金，中国科学院山地灾害与地表过程重点实验室开放基金，后勤工程学院研究生创新基金 |
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| 摘 要： | 基于岩体结构面破坏的Mohr-Coulomb准则和可靠度理论，视结构面和岩块强度参数以及结构面倾角为随机变量，分析了结构面强度参数的变异性对结构面破坏概率的影响，探讨了结构面破坏概率随结构面倾角的变化规律，提出了结构面和岩块破坏概率的计算公式，找出了影响结构面破坏概率的主要因素。结果表明，岩体结构面强度的可靠度分析比传统的定值分析方法更为客观合理。
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| 关 键 词： | Mohr-Coulomb准则 结构面 强度参数 随机变量 可靠度 |
| 收稿时间： | 2007-05-29 |
Reliability analysis of strength for joint in rock mass |
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| LIU Dong-sheng,ZHANG Lang,SONG Qiang-hui,YANG Kai.Reliability analysis of strength for joint in rock mass[J].Rock and Soil Mechanics,2009,30(2):328-332. |
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| Authors: | LIU Dong-sheng ZHANG Lang SONG Qiang-hui YANG Kai |
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| Institution: | 1. Department of Architecture & Civil Engineering, Logistical Engineering University, Chongqing 400041, China; 2. Institute of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | Based on the Mohr-Coulomb strength criterion of joint in rock mass and reliability theory, the strength parameters of rock and joint as well as the obliquity of joint are taken as random variables. Some influences caused by these random variables on the failure probability of joint are analyzed. The regularity of failure probability of joint with the change of the obliquity is discussed. A formula for calculating the failure probability of rock and joint is brought forward. Some main factors which influence the failure probability of joint are found out. Results show that the reliability analysis method of joint in rock mass is more reasonable than that of traditional method. |
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| Keywords: | Mohr-Coulomb criterion joint strength parameters random variable reliability |
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