Investigation of Wave Field Stress Method in Seismic Analysis of Underground Structures

Abstract:

It is indicated by many earthquake damage surveys that the seismic design of underground structures is a key issue for underground caverns. However, methods regarding seismic design of underground caverns have not been covered by current national codes. The wave field stress method is a kind of method in which the additional stress induced by earthquake is calculated based on the dynamic features of structures. Based on the earthquake damage survey of the underground cavern at Yingxiuwan hydropower plant after Wenchuan earthquake, the wave field method is used to analyze the structural response under earthquake impact. After comparing calcluation results to field findings, it is discovered that they are basically in good agreement. Therefore, it is concluded that the wave filed stress method can be adopted to assist the seismic design of underground structures during the preliminary design phase of project.

• Periodical: Advanced Materials Research (Volumes 753-755)
• Pages: 1141-1144
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.753-755.1141
• Online since: August 2013
• Authors: Zhi Guo Zhang, Chun Lai Mu, Chan Ge Liu, Cun Hui Zhang
• Keywords: Seismic Calculation, Underground Cavern, Wave Field Stress Method

References

[1] Song Shengwu, Jiang Feng, Chen Wantao: ALMANAC OF CHINA'S WATER POWER, 2008. (in Chinese).

[2] Chi Jianjun, Zhang Xiuli: ALMANAC OF CHINA'S WATER POWER, 2008. (in Chinese).

[3] Cao Shan'an. Underground structural mechanics[M]. Dalian University of Technology Press, 1987. (in Chinese).

[4] Zhu Bofang. Principle and application of the finite element method (third edition) [M]. Beijing: China Water Power Press, 2009. (in Chinese).

[5] Ye Jianqing, Su Jinrong, Chen Hui: seismic study, 2008, 31(s): 498-504.

[6] Zhang Zhiguo, Xiao Ming, Chen Juntao: Chinese Journal of Rock Mechanics and Engineering, 2011, 30(3): 509-523.