地下结构荷载的广义反演方法  

GENERALIZED INVERSE METHOD FOR UNDERGROUND STRUCTURE LOAD

作　　者：张中生[1] 陈子荫[1] 朱维申[1] 

机构地区：[1]中国科学院武汉岩土力学研究所

出　　处：《土木工程学报》2001年第2期38-42,共5页China Civil Engineering Journal

摘　　要：利用位移反分析方法进行地下结构荷载反演是行之有效的。本文针对地下结构荷载反算存在解的不唯一性和不稳定性 ,提出地下结构荷载的广义反演方法。借助奇异值分解和广义逆建立地下结构荷载反算的广义最小二乘解估计。The inverse method for the measured displacement is effective in practice to make certain the underground structure load.A generalized inverse method is proposed in the paper.It is provided for the lack of non?uniqueness and instability in the solution of inverse method.We establish some methods to estimate the load by means of singular value decomposition(SVD)and generalized inverse.These are the generalized least square, generalized least norm,and generalized least variance.The generalized inverse method for underground structure load can deal with the non-uniqueness.

关 键 词：地下结构 位移反分析 奇异值分解 广义反演 结构荷载 

分 类 号：TU93[建筑科学—结构工程]