Dynamic Response Simulation of Yangtze River Tunnel Subjected to Contact Explosion Loading with ANSYS/LS-DYNA

摘要

For the Wuhan Yangtze River tunnel, four contact explosion loadings on the carriageway in a shield tunnel are simulated and analyzed by ANSYS/LS-DYNA software. The displacement, acceleration and the maximum principal stress of bottom, coping and sidewall in a shield tunnel are calculated when different contact explosions occur. And the dynamic response rule of shield tunnel lining in different explosion loading is studied. The most vulnerable situation in shield tunnel is found. The results will give a reference to explosion-resistant design of shield tunnel.