›› 2010, Vol. 31 ›› Issue (1): 293-298.

• Numerical Analysis • Previous Articles     Next Articles

Multiparameter back analysis of surface movement induced by double tube tunneling

ZHU Zhi-heng1, 2，YANG Jun-sheng2，DONG Hui2, 3   

  1. 1. Test Center of Guangdong Transportation Company, Guangzhou, 510800, China; 2. School of Civil and Architecture Engineering, Central South University, Changsha 410075, China; 3. College of Civil Engineering and Mechanics, Xiangtan University; Xiangtan 411105, China
  • Received:2008-07-03 Online:2010-01-10 Published:2010-02-02

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2006

Abstract:

Stochastic medium method(SMM) is widely used in the field of surface movement induced by tunneling. And back analysis is the most useful method for determining key parameters. In the problem of twin tunnel back analysis the parameters of each tunnel is supposed same, so the problem can be solved for dual-parameters. But this way isn’t access truthfulness. For improvement, multiparameter back analysis method is presented, in which each tunnel should have different parameters. The case study shows that the back analysis result of 4 parameters is better than the dual-parameters. But 4 parameters back-analysis of twin tunnel is much more complex so that traditional pattern search method can’t solve the problem well. So simplex hybrid accelerating genetic algorithm(SHAGA) is introduced for solving this problem. The test of application shows that SHAGA can solve it accurately and stably.

Key words: stochastic medium method, surface movement, parameters back analysis, genetic algorithm

CLC Number: 

  • TU 443
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