摘要
本文针对开挖施工现场实测的位移量离散性很强，而用常规方法建立的最佳估计目标函数又得不到有效估计值的问题，提出了一种根据Ｂｈａｔｔａｃｈａｒｙａ信息不等式推导出的、更具一般意义的目标函数。本文给出的目标函数可以合理地利用量测数据得到可信的结果。
he optimal estimation of parameters in geotechnical back analysis depends upon the form ofobjective function which reflects the relation of system response of real geotechnique engineering andsimulating model.For the adverse circumstances in field testing site and the complexity of geologicalcondition,the measured displacement data are dispersed far from the assumed error distribution,suchthat previous estimator will be of no effect,A general objective function called as robust objective func-tion is presented according to Bhattacharya information inequality,the proposed approach would makefull use of measurements to get reasonably satisfactory result.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1994年第2期29-37,共9页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金
关键词
岩体工程
优化反演分析
目标函数
rock engineering,optimal backanalysis,object function,robust estimation.
