Numerical Analysis on Influence of Cross Section Shape on Earthquake Resistant Capability of Shallow-Buried Tunnel

Abstract:

Taking portal segment in some shallow-buried tunnel in seismic region with strong motion as objects of study, the finite element analysis method was used to compare and assess the seismic behavior of the tunnel with different cross section shape. The results show that the linings displacement response of the tunnel with different cross section shape differs very minor under seismic load. Meanwhile there exists obvious difference in the lining internal forces of the tunnel with different cross section shape. Among all the tunnel with different section shape, the mechanics situation of the tunnel with triple arched sections is the best. While the section of the tunnel is closer to circular in shape, the mechanics situation of the lining can be effectively improved under seismic load.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1292-1296
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1292
• Online since: September 2013
• Authors: Hong Tao Xie
• Keywords: Finite Element Analysis (FEA), Section Shape, Seismic Behavior, Seismic Region with Strong Motion, Shallow-Buried Tunnel

References

[1] Wang Zhengzheng, Gao Bo, Jiang Yuanjun, et al. Investigation and Assessment on Mountain Tunnels and Geotechnical Damage after the Wenchuan Earthquake. Science in China (Series E): Technological Sciences, 2009, 52 (2): 546-558, In Chinese.

DOI: 10.1007/s11431-009-0054-z

[2] Hashash Youssef M. A. et al. Seismic Design and Analysis of Underground Structures [J]. Tunnelling and Underground Space Technology, 2001, 16: 247-293.

DOI: 10.1016/s0886-7798(01)00051-7

[3] Yuanming Lai, Zi wang Wua, Yuan lin Zhu , Lin nan Zhu. Elastic visco-plastic analysis for earthquake response of tunnels in cold regions[J]. Cold Regions Science and Technology, 2000( 31) : 175-188, In Chinese.

DOI: 10.1016/s0165-232x(00)00011-2

[4] MOHAMMAD C. PAKBAZ, AKBAR YAREEVAND. 2-D analysis o f circular tunnel against earthquake loading[J]. Tunnelling and Underground Space Technology, 2005( 20): 411-417.

DOI: 10.1016/j.tust.2005.01.006

[5] GAO Feng , SHI Yu-cheng , YAN Song-hong , GU AN Bao-shu. Anti seismic Fortified Length in Tunnel Outlet[J]. China Journal of Highway and Transport. 2006, 19(3): 65-69, In Chinese.

[6] SHEN Yusheng, GAO Bo, WANG Zhengzheng. Failure mode analysis of mountain tunnel shake table test in high-intensity earthquake area[J]. Engineering Mechanics. 2009, 26(1): 62-66, In Chinese.

[7] JIN Xiao-guang, ZHANG Yong-x ing. Earthquake Response Properties of the Support Structure of Large Cross Section Tunnel[J]. Journal of Chongqing Jianzhu University. 2008, 30(1): 44-48, In Chinese.

[8] GENG Ping, CAO Dongjie, TANG Jinliang, QUAN Qianlong, CHENG Bangfu. Rational Seismic Protective Length for Portal of Railway Tunnel[J]. Journal of Southwest Jiaotong University. 2012, 47(6): 942-948, In Chinese.

[9] JIANG Shuping，JIANG Hua，WANG Xiaowen, et al. Design test scheme of large-scale shaking table model for tunnel outlet of highway tunnel in seismic region with strong motion[J]. Highway, 2009( 10) : 245-249, In Chinese.

[10] Zhang Zhidao. Design Outlines of Tunnel in Seismic Region[R]. Chengdu: Highway Planning Survey and Design Institute, Sichuan Communications Department, 2008, In Chinese.