›› 2011, Vol. 32 ›› Issue (4): 1249-1254.

• Numerical Analysis • Previous Articles     Next Articles

Study of damage mechanism and FLAC3D simulation of the seismic dynamic response of Shiguan gate in Diaoyucheng ruins

LIU Ji-kui1，FANG Yun1，LIU Zhi2，LIU Jian-hui3，WANG Xiao-dong1   

  1. 1. Faculty of Engineering, China University of Geoscience, Wuhan 430074, China; 2. Diaoyucheng Administration Bureau of Hechuan District of Chongqing City, Chongqing 401520, China; 3. Chinese Academy of Cultural Heritage, Beijing 100029, China
  • Received:2009-12-11 Online:2011-04-10 Published:2011-04-29

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Abstract:

The ancient ruins, Shiguan gate attached to rock and soil mass, is a part of rock and soil mass; so geotechnical analysis is used to study of its damage mechanism. In the "5.12" Wenchuan earthquake, local cracking and dislocation phenomena occurred in Shiguan gate of Diaoyucheng ancient battlefield ruins in Hechuan of Chongqing. Geological survey shows that the Shiguan gate is under complicated geological conditions like landslides, cracks etc., so geological model of Shiguan gate is sampled and the fast Lagrangian analysis of continua in 3D (FLAC3D) is used to make 3D simulation of the seismic dynamic response and analyze damage mechanism of Shiguan gate. Simulation results show that the stress concentration obviously occurs in Shiguan gate and displacements appear obviously under the conditions of seismic waves. The damage of Shiguan gate results from various geological factors. "5.12" Wenchuan earthquake is induced factor, geological structure like landslides, cracks etc., is the main reason; the reduction of its own intensity is the internal reason. The reliable scientific basis of repair and design of Shiguan gate is provided by the the simulation results. It has certain study significance and promotion value.

Key words: ancient ruins, damage mechanism, “5.12”Wenchuan earthquake, FLAC3D simulation of dynamic response

CLC Number: 

  • TU 452
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