基于正交试验设计的岩坡力学参数反演  

Slope Reinforcement Mechanic Parameter Inversion Based on Orthogonal Experimental Design

作　　者：王学究 

机构地区：[1]河南省电力勘测设计院,河南郑州450007

出　　处：《华北水利水电学院学报》2010年第3期76-79,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：对某岩坡Ⅲ区现场勘察后认为,该区为断层破碎带,属碎裂结构,岩体分级为Ⅳ级.由于地质情况复杂、岩体破碎以及边坡开挖引起的应力释放等原因,致使边坡岩体加固的力学参数用常规方法较难确定.运用正交试验设计的方法借助有限差分程序FLAC进行分析,以安全系数作为评价指标,模拟各参数不同水平的各种组合,对影响边坡稳定性的各因素进行了敏感性分析,并对边坡力学参数进行了反演,得出较为合理的力学参数,为边坡治理提供依据.The Ⅲ area of a slope is a fault fracture zone,and belong to granular structure.Its classification is grade Ⅳ.Using conventional method,it is difficult to acquire the rock slope reinforcement mechanic parameters because of rock fractured and stress release caused by slope cutting through the site investigation.Safety factors are presented as the evaluating indexes.The paper simulates different parameter combinations to find the optimal one using the orthogonal experiment design and finite difference program FLAC.Using the parameter combinations,the sensitivity analysis of various factors affecting side-slope stability is carried on.These would provide some references for optimal design of slope.

关 键 词：正交试验设计 边坡加固参数 快速拉格朗日法 参数反演 

分 类 号：TU457[建筑科学—岩土工程]