Numerical simulation for large section tunnel based on stress mapping return arithmetic and loading releasing method

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• Affiliation of Author(s):土木工程学院
• Journal:Applied Mechanics and Materials
• Key Words:中文关键字：隧道与地下工程；数值分析；参数反演，英文关键字：Large section tunnel；Simulation methods；Tunnel eng
• Abstract:Aiming at that general Finite Element Method is difficult to simulate the complex tunnel excavation inducing the second stresses adjusting, the paper proposed the simulation methods combining loading releasing and stress mapping return arithmetic. After the introduction of relative theory, the FEM code has been developed by VC++. The excavation process of a large section tunnel engineering CRD construction is simulated by the code, the displacements contour, arc top and arc shoulder settlement, horizontal convergence and ground face settlement corresponding to each excavate step have been obtained by the simulation. The regulation of the results are compared with monitoring data, which stated the method is feasible. The simulation has guiding meaning to the tunnel engineering construction. © (2011) Trans Tech Publications.
• Note:宋战平
• First Author:songzhanping
• Indexed by:Journal paper
• Volume:卷：71-78
• Issue:期：
• Page Number:页：
• Translation or Not:no
• Date of Publication:2011-12-01