›› 2010, Vol. 31 ›› Issue (8): 2546-2552.

• Geotechnical Engineering • Previous Articles     Next Articles

Calculation method of shield tunnel lining considering mechanical characteristics of joints

ZHANG Dong-Mei, FAN Zhen-Yu, HUANG Hong-Wei   

  1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
  • Received:2008-11-18 Online:2010-08-10 Published:2010-08-30

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Abstract:

Based on structural characteristics of lining joints of shield tunnel, a mechanical model of joint was established. The interaction between segments is transformed into a series of combined shearing and normal springs. The model was then implemented into FLAC3D code and the spring stiffness could be adjusted automatically under diverse deformation styles of lining joints during processing. Both the transverse and longitudinal structural behavior could be simulated in terms of the internal forces and deformation of shield tunnel. Finally, the model was validated by a whole ring test on Shanghai Yangtze River Tunnel lining. A good agreement between tested and calculated results was obtained to verify rationality of the algorithm.

Key words: shield tunnel, lining segments, joints, operational mode

CLC Number: 

  • TU 451+4
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