Study on the deformation and load bearing capacity of TBM shield tunnel lining in fire

摘要

This paper describes the result of fire test with specimens of the same size as actual segment and the numerical analysis to reproduce the behavior of specimen during the test. The design load for the crown or spring line of actual tunnel is introduced into the specimen. The numerical analysis is executed many times to simulate the time history of deformation behavior and load bearing capacity of the specimens. This analytical technique consists of heat conduction analysis and nonlinear thermal stress analysis.