›› 2011, Vol. 32 ›› Issue (12): 3787-3795.

• Numerical Analysis • Previous Articles     Next Articles

Construction monitoring and numerical simulation of multi-arch tunnel

JI Mao-wei1, 2, WU Shun-chuan1, GAO Yong-tao1, GE Lin-lin2, LI Xiao-jing3   

  1. 1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. School of Surveying & Spatial Information Systems, the University of New South Wales, Sydney 2052, Australia; 3. School of Civil and Environmental Engineering, the University of New South Wales, Sydney 2052, Australia
  • Received:2010-08-09 Online:2011-12-10 Published:2011-12-13

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Abstract: Based on the multi-arch tunnel #2 for the JK-2 Contract Section in the Zhangjiakou-Shijiazhuang Expressway, the information monitoring platform based on in situ multi-source sensors combined with the regression analysis and parametric feedback information concerning the highly confident models have been developed to investigate and analyze the monitored data. The dynamic characteristics of surrounding rock stress, displacement, deformation, plastic zones and supporting structures in different construction processes are analyzed. Through complete analysis and research, various abnormal phenomena are analyzed; and the stability and effectiveness of the tunnel surrounding rocks have been described. Moreover, based on MIDAS/GTS (rock and tunnel analyzing system)—professional finite element software and topographic contours, the tunnel construction simulation is implemented by establishing 3D model. Tunnel structures and supporting systems of the different construction methods have been compared with the result of numerical simulation. Aiming at the designed construction method of asymmetrical pressure and unfavorable geological setting, some suggestions and the optimization scheme have been proposed, which could also be recommended for similar future projects.

Key words: multi-arch tunnel, monitoring and measurement, numerical simulation, construction scheme

CLC Number: 

  • U 456.3
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