摘要
通过位移反分析方法来确定地下结构上荷载大小及分布是一种行之有效的方法。针对地下结构荷载反算中测线凭经验布置的盲目性，提出了独立测线网的布置方案，借助奇异值分解并结合解估计分辨率和解估计方差提出了最优测线网的准则，为地下结构荷载反算正确布置测线提出了理论依据。解决思路可以推广应用到其他位移反分析问题的测线布置优化。
The back analysis of measured displacements is very available to determine the underground- structure loads. The scheme of independent measuning-line network is put forward for the back analysis. The criterion to optimize independent measuning-line network is presented. The theoretic basis is found to arrange correctly measuring-line in back analysis of underground-structure loads. The idea of the optimization arrangement of measuring-line can be applied to another back analysis of measured displacements.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2000年第2期219-224,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金!(5880368)
关键词
地下结构
荷载
位移反分析
测线布置
优化
矿业
underground-structure loads, back analysis of measured displacements, arrangement of measuring-line, optimum criterion
