A multi-mesh modeling method for nonlinear dynamic analysis of super-large-scale tunnel structure using FEM

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (7) : 157-163.

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A multi-mesh modeling method for nonlinear dynamic analysis of super-large-scale tunnel structure using FEM

Weng Yi-liu1; Xianlong Jin1,2; Yun Gu3; Yang Zhi-hao4

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Abstract

This paper proposes a multi-mesh modeling method for nonlinear dynamic analysis of super-large-scale tunnel structure using FEM, compensating the incompetence of the traditional modeling techniques. Adopting parallel computing algorithm and making effective control of the time step, the simulation for the large-scale multi-mesh model can be done on super computers. The modeling and simulation of the Qing Cao Sha Raw Water Tunnel Project is a good example of how this modeling method can be utilized practically and effectively. The result of simulation shows a combination of overall and part detailed response of the tunnel lining, thus proving the feasibility of this modeling method.

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hybrid model / super-large scale / nonlinear / finite element

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Weng Yi-liu;Xianlong Jin;Yun Gu; Yang Zhi-hao. A multi-mesh modeling method for nonlinear dynamic analysis of super-large-scale tunnel structure using FEM[J]. Journal of Vibration and Shock, 2011, 30(7): 157-163