岩土工程中位移量测的随机逆反分析  

Stochastic inverse Back Analysis of Measured Displacements

作　　者：黄宏伟[1] 

机构地区：[1]同济大学地下建筑与工程系

出　　处：《岩土工程学报》1995年第2期36-41,共6页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金

摘　　要：本文考虑了岩土工程中量测位移及介质力学模型的随机不确定性，基于随机有限元和特征函数法分析，提出了反演岩土体初始地应力场、介质力学特性参数的均值及多阶矩的随机逆反分析方法。研究结果表明随机逆反分析更能符合实际不确定岩土工程的要求。Considering the stochastic uncertainties of measured displacements and mechanical model in geotechnicalengineering,this paper presents a stochastic inverse back arlalysis method,which is based on stochastic finite ele-ment method and characterlstic function analysis method. This method can back-analyse the mean and multi-mo-ment of initial stresses and mechanical behavior parameters of rock or soil.The study shows that the proposedmethod is satisfied for the practical uncertainty of geotechnieal engineering.

关 键 词：岩土工程 位移 随机有限元法 逆反分析 测量 

分 类 号：TU459[建筑科学—岩土工程]