›› 2009, Vol. 30 ›› Issue (9): 2875-2880.

• Numerical Analysis • Previous Articles    

Research on partial pressure joint arch tunnel’s dynamic simulation and optimum analysis of construction process

ZHUANG Ning1, ZHU Ku-zhu2, LI Jun-wei3   

  1. 1. College of Traffic, College of Ocean, Hohai University, Nanjing 210098, China; 2. Department of Civil Engineering, Guilin University of Technology, Guilin 541004, China; 3. China United Engineering Corporation, Hangzhou 310022, China
  • Received:2008-05-04 Online:2009-09-10 Published:2010-03-24

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Abstract:

In order to simulate and make optimum analysis of partial pressure joint arch tunnel, a 3D finite element model is established. The simulation results are compared with the measured data in site. Arch crown settlement, stress and displacement of middle wall, plastic area distribution of surrounding rock, and variation of initial and secondary linings are analyzed. Then, the joint arch tunnel’s optimal construction sequence, the optimal construction space of two holes, the suitable construction method of cutting face and cycle length are determined by the simulation. The results provide a scientific basis and technical guidance for the construction optimization of partial pressure joint arch tunnel.

Key words: partial pressure joint arch tunnel, 3D finite element model, dynamic simulation, construction optimization

CLC Number: 

  • O 24
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