ZHONG Deng-hua, TONG Da-wei, WANG Shuai, et al. Three-dimensional simulation analysis of structure of deep water diversion tunnel with TBM constructing[J]. 2008, 29(3).
ZHONG Deng-hua, TONG Da-wei, WANG Shuai, et al. Three-dimensional simulation analysis of structure of deep water diversion tunnel with TBM constructing[J]. 2008, 29(3).DOI:
Considering the elastoplasticity of surrounding rock
and introducing into the birth and death elements in the finite element program
a 3-D simulation model of surrounding rock which can simulate the boring process is established; and the distortion model of surrounding rock of deep tunnel is obtained. Based on the distortion model of surrounding rock
and adopting the contact model and Coulomb friction model to simulate the nonlinear connecting effect of segment joint
a 3-D simulation model of TBM tunnel segment structure is given to analyze its stress and strain characters during different working stages (construction stage
application stage
overhaul stage)
different rock types and different lining times. The results can provide the basis for water diversion tunnel’s timely lining and safe running.