首页|3D Finite Element Analysis of TBM Water Diversion Tunnel Segment Coupled with Seepage Field

3D Finite Element Analysis of TBM Water Diversion Tunnel Segment Coupled with Seepage Field

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
In most studies of tunnel boring machine(TBM)tunnelling, the groundwater pressure was not consid-ered, or was simplified and exerted on the boundary of lining structure. Meanwhile, the leakage, which mainly oc-curs in the segment joints, was often ignored in the relevant studies of TBM tunnelling. Additionally, the geological models in these studies were simplified to different extents, and mostly were simplified as homogenous bodies. Considering the deficiencies above, a 3D refined model of the surrounding rock of a tunnel is firstly established using NURBS-TIN-BReP hybrid data structure in this paper. Then the seepage field of the surrounding rock con-sidering the leakage in the segment joints is simulated. Finally, the stability of TBM water diversion tunnel is stud-ied coupled with the seepage simulation, to analyze the stress-strain conditions, the axial force and the bending moment of tunnel segment considering the leakage in the segment joints. The results illustrate that the maximum radial displacement, the minimum principal stress, the maximum principal stress and the axial force of segment lining considering the seepage effect are all larger than those disregarding the seepage effect.

segment liningseepage-stress coupling3D geological modelTBM water diversion tunnel

钟登华、胡能明、程正飞、吕鹏、佟大威

展开 >

State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China

Supported by the Foundation for Innovation Research Groups of the National Natural Science Foundation of ChinaTianjin Research Program of Application Foundation and Advanced TechnologyTianjin Natural Science Foundation

5132106512JCZDJC2920013JCYBJC19500

2016

天津大学学报(英文版)
天津大学

天津大学学报(英文版)

EI
影响因子：0.343
ISSN：1006-4982
年,卷(期)：2016.(1)
  • 2
  • 9