基于多目标非线性函数某深基坑参数反演分析  

Back analysis of parameters of a deep foundation pit based on multi-objective nonlinear function

作　　者：刘金慧[1] 

机构地区：[1]山东交通学院交通土建工程学院,山东济南250023

出　　处：《山东大学学报（工学版）》2015年第4期75-83,共9页Journal of Shandong University（Engineering Science）

基　　金：山东省自然科学基金资助项目(ZR2012EEM006)

摘　　要：借助多目标非线性规划函数思想,结合长株潭城际高铁II标湘府路车站基坑工程,在反演过程中利用多种监测项目的数据,以求能够获得比较准确的反演参数。通过对比单目标函数反演力学参数计算结果、多目标函数反演力学参数计算结果及现场实际监测值,发现多目标函数获得的反演力学参数输入到数值分析软件中得到的结果更接近于现场实际监测结果,说明在参数反演分析过程中,利用施工中多元监测数据的信息量越大,获得的反演参数的可靠性越好。By means of multi-objective nonlinear programming function idea, combining with Xiangfu Road station foundation pit of Cbangsba-Zhuzhou-Xiangtan intercity high-speed rail, the data of various monitoring items during the inversion process were used to obtain more accurate inversion parameters. By comparing the single objective function inversion calculation results of mechanical parameters, multi-objective function inversion mechanics parameter calculation results and field monitoring value, the results showed that the numerical analysis results using back analysis of mechanical parameters obtained by multi-objective function were more close to the actual monitoring results. The greater the amount of information of multiple monitoring data used in the construction was, the better the reliability of mechanical parameters inversion was.

关 键 词：多目标 非线性规划函数 深基坑 反演分析 现场监测 可靠性 

分 类 号：TU43[建筑科学—岩土工程]