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| Determining Methods for Soil Parameters Based on Field Measurements in Tunnel Engineering |
| REN Yingnan1,CHEN Jinjian2,HUANG Zhonghui2,WANG Jianhua3 |
| (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University,
Shanghai 200240, China) |
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Abstract
Abstract： In this paper, an efficient multiobjective backanalysis method of tunnel engineering was proposed by using the AMALGAM as the genetic algorithm, and by using the Pareto optimal theory as the evaluation criterion. The proposed method was applied to a test section of the West Changjiang Road tunnel project. Taking horizontal displacement as one objective, and ground settlement as the other, the soil parameters of the key layers were estimated using this method. The optimal solution was compared with the measured results, which proved that the multiobjective back analysis was superior to the singleobjective back analysis in accuracy. Meanwhile, predictive analysis was taken based on the results of back analysis, and was verified as feasible. This method can provide references for environmental impact analysis of tunnel engineering.
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Received: 10 December 2014
Published: 29 January 2016
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