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

LIU Jinhui

1. Institute of Transportation & Civil Engineering, Shandong Jiaotong University, Jinan 250023, Shandong, China
• Received:2015-01-09 Revised:2015-06-09 Online:2015-08-20 Published:2015-01-09

Abstract: By means of multi-objective nonlinear programming function idea, combining with Xiangfu Road station foundation pit of Changsha-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.

CLC Number:

• TU43
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