陡倾角层状围岩模糊随机可靠度分析  

Analysis on Reliability of Fuzzy and Random of Layered Surrounding Rock with Steep Dip Angle

作　　者：蒋兵[1] 郝杰[1] 

机构地区：[1]新疆水利水电勘测设计研究院,乌鲁木齐830000

出　　处：《西北水电》2017年第6期105-107,共3页Northwest Hydropower

摘　　要：应用弹性板能量法的稳定理论,研究新疆布伦口-公格尔水电站地下某标段洞室围岩在层状岩层地质条件下的弯曲失稳现象,用安全系数Fs进行稳定性判别。由于层状围岩安全系数评价中包含有模糊随机性的力学参数,故引入模糊分析理论中的模糊随机可靠性指标β进行分析计算,并与安全系数Fs进行相互印证,综合评价围岩质量。The stability theory of elastic plate energy method is applied to study the bending instability of the cavern surrounding rock in the geological condition of the layered stratum in Xinjiang Bulunkou-Gonger Hydropower Project. The safety factor is utilized to judge stability. As assessment of safety factor for the layered surrounding rock includes the mechanic parameters of fuzzy random,the reliability index茁 of the fuzzy random in the fuzzy analyzing theory is introduced for analysis and computation. Furthermore, it is verified with the safety factor Fs,and the quality of the surrounding rock is assessed generally.

关 键 词：陡倾角 层状围岩 安全系数 模糊性 随机性 可靠性 可靠性指标 

分 类 号：TV221.2[水利工程—水工结构工程]