路堑边坡模糊随机可靠度研究及工程运用  

Study on Fuzzy-random Reliability of Cutting Slope and the Engineering Application

作　　者：熊峥[1,2] 

机构地区：[1]四川理工学院,四川自贡643000 [2]海南省公路勘察设计院,海口570206

出　　处：《路基工程》2016年第5期25-28,共4页Subgrade Engineering

基　　金：海南省应用技术研发与示范推广专项:海南岛高液限土路堤修筑技术研究(ZDXM2014100)

摘　　要：将边坡稳定的安全系数及搜索最危险滑面计算的安全系数分别作为结构强度和结构荷载,构造边坡可靠性分析的功能函数显式表达式,以此为基础,既考虑岩体力学参数的随机性,又考虑"边坡稳定"这一概念的模糊性,求解边坡模糊随机可靠度。将上述理论运用于海南中线高速公路某半路半桥路基边坡设计中,经过施工期台风季节以及通车运营半年的考验,证明该方法是合理实用的。Herein the safety factor of slope stability and that of calculation for searching most dangerous sliding surface were taken as the structural strength and structural load respectively to constitute the explicit expression of performance function for analysis of slope reliability and, on this basis, with both the randomness of the mechanical parameters of rock mass and the fuzziness of the concept of slope stability considered, the fuzzy-random reliability of slope was solved. This theory was applied to the slope design of a half-road-half-bridge subgrade along Hainan Zhongxian Highway, then, through trials and tribulations from the typhoon season during the construction and half-year operation experience after open traffic, proved to be reasonable and useful.

关 键 词：路堑边坡 力学参数 随机性 边坡失稳 模糊性 

分 类 号：U416.13[交通运输工程—道路与铁道工程]