Abstract
It is taken one project of pipe installment in tunnel of China-Central Asia Line as one case. Set up one FEM contact element pairs, it simulates the relationship of pipe and thrust fault. With the thrust fault happening, the laying pipe occur large displacement, stress, and gap or pressure. Compare the maximum stress to 90% of allowable yield strength, it determines damage occurs or not about the pipe. Dislocation of ground face leads to pipe local shrinking, and then large tensile strain happens to local damage. To avoid that bad consequence, horizontal Compensators will be installed on tunnel both sides to coordinate deformation.
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