›› 2011, Vol. 32 ›› Issue (4): 1186-1192.

• Numerical Analysis • Previous Articles     Next Articles

Dynamic analysis of strata horizontal displacements induced by shield construction of deep tunnel

JIANG Xin-liang，LI Lin，YUAN Jie，YIN Jia-shun   

  1. School of Civil Engineering, Tianjin University, Tianjin 300072, China
  • Received:2009-10-10 Online:2011-04-10 Published:2011-04-29

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Abstract:

To study two-phase horizontal displacements of strata during tunnel excavation, specific areas are tested in Guangzhou Metro No. 2 and No. 8 extension project, combining with the numerical simulation with ABAQUS. The results show that there are different laws of two horizontal displacements U1 (parallel to the tunnel) and U2 (perpendicular to the tunnel) at different phases. The numerical analysis further demonstrates that in the circular region of one time tunnel diameter, the maximum of U1 is even bigger than U2. During design and construction stages, both the two horizontal displacements should be considered.

Key words: shield construction, ABAQUS, three-dimensional finite elements, dynamic simulation, horizontal displacement, settlement

CLC Number: 

  • TU 443
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