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Journal of Shanghai University（Natural Science Edition） ›› 2012, Vol. 18 ›› Issue (4): 401-407.doi: 10.3969/j.issn.1007-2861.2012.04.014

• Mathematics.Physics and Chemistry • Previous Articles     Next Articles

Predictive Analysis of Slurry Shield Crossing Beneath Existing Tunnel

NING Yin1,2,FENG Wei1,MA Yong-qi1,3,ZHU Bin2   

  1. (1.Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;
    2. TBM Construction Branch, Shanghai Tunnel Engineering Construction Co., Ltd., Shanghai 200023, China;
    3. College of Sciences, Shanghai University, Shanghai 200444, China)
  • Online:2012-08-30 Published:2012-08-30

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Abstract: This paper established a 3D nonlinear finite element model with Abaqus based on actual geological conditions and construction parameters. By simulating the construction process of slurry shield crossing beneath existing tunnel, deformation and stress of the tunnel, and the subsidence of ground in the slurry shield tunnel construction are calculated and analyzed.〖HJ〗 The impacts of slurry shield construction on the existing tunnel are predicted. Comparison with the measured data shows that the calculation is reliable. The results provide usful guidance to the project, and may by used as a reference for analyses of similar projects.

Key words:  forecast analysis, crossing beneath existing tunnel, nonlinear finite element method, slurry shield

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