Abstract：
Cracks exist in many built tunnel linings; these cracks reduce the bearing capacity of the tunnel lining. The numerical simulation of a load application mode regarding the plastic ground pressure, loose soil pressure and unsymmetrical pressure is presented in order to study the mechanical behaviors of cracked tunnel linings. The principles and applicability of some existing models concerning the study of cracks are examined. Then, based on finite element theory of reinforced concrete, the whole processes-from cracking to failure of the tunnel lining under various load modes-is analyzed by a crack-distribution model. Crack development and distribution laws under various load modes are calculated, and these can provide theoretical support for determining the cause of lining cracking and corresponding reinforcement.
YANG Hua-1,
Zhang-Wen-Zheng-2
.Numerical Simulation Study of a Longitudinal Lining Crack of a Highway Tunnel[J] MODERN TUNNELLING TECHNOLOGY, 2011,V48(5): 46-51
2011, Vol. 48 