地下结构荷载反算中的测线网优化布置

英文篇名：OPTIMIZATION ARRANGEMENT OF MEASURING-LINE IN BACK ANALSIS OF UNDERGROUND-STRUCTURE LOADS
中文刊名：岩石力学与工程学报
英文刊名：CHINESE JOURNAL OF ROCK MECHANICS AND ENGINEERING
作者：张中生
英文作者：Zhang Zhongsheng (Institute of Rock and Soil Mechanics ; The Chinese Academy of Sceinces ; Wuhan 430071 China)
中文关键词：地下结构荷载 ; 位移反分析 ; 测线布置 ; 最优准测
英文关键词：underground-structure loads ; back analysis of measured displacements ; arrangement of measuring-line ; optimum criterion
出版日期：2000-04-30
机构：中国科学院武汉岩土力学研究所!武汉430071
年：2000
期：02
出版单位：岩石力学与工程学报

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.

引文

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