期刊论文、会议论文

Probability distribution of strength parameters and deformation parameters of surrounding rock and reliability analysis

Yan, C.-L.

中文

岩土力学

1000-7598

2010

31

S2

349-353+365

第10届全国岩土力学数值分析与解析方法研讨会

第10届全国岩土力学数值分析与解析方法研讨会论文集

2010-11-05

温州

中国力学学会

10.16285/j.rsm.2010.s2.034

国家自然科学基金资助项目(No.40872178) 上海市重点学科建设项目资助(No.B308)

本校为其他机构

从康家湾铅锌金矿Ⅲ-1号矿体上盘围岩取大量岩样,分别加工制作了50个压缩和拉伸试验的试样。利用RMT-150B伺服试验系统对试样进行单轴抗压、抗拉试验,各获得了50个试验结果。采用假设检验法,分别对50个单轴抗压强度和50个抗拉强度进行检验,结果表明,它们分别服从正态分布和对数正态分布;对50个E、μ和50个C、?,进行不放回抽样,组成50组E、μ、C、?。利用FLAC计算软件,对硐室围岩中的应力进行了计算,分别获得了50个最大主应力和50个最小主应力;采用同样假设检验法,证明它们分别服从对数正态和正态分布;根据单轴抗压、抗拉强度及围岩中的最大主应力、最小主应力概率密度函数,计算了硐室围岩不发生...

Cores were taken from hanging wall of the III-1 ore body at Kangjiawan Lead, Zink and Gold Mine. 50 samples for compression tests and 50 samples for tension tests were fabricated. And 50 compressive strength values and 50 tensile strength values were obtained by using the electro-hydraulic and servo-controlled testing system RMT-150B. The probability distributions for the compressive strength and tensile strength were tested by using the obtained compressive strength values and tensile strength values and the hypothesis test method. It is shown that the uniaxial compressive strength follows no...