Risk Assessment on Ground Fissure Disasters of Xi’an Metro Line 3

Abstract:

Due to special geological environment in Xi’an, serious ground fissure disasters will occur to the Metro construction. According to the planning, Metro Line 3 will meet with the ground fissures at 15 segments. Based on the results of model test and numerical analysis, the minimum sedimentation value of ground fissure arousing disasters on metro was determined as . By using the evaluation model of risk degree as R = P×V, risk degrees of each segment where the metro crossed ground fissures was calculated. The results showed that in normal design circumstances, there are eight ultra-high risks segments and two high risks segments. Therefore, special measures should be taken to reduce risks for these segments with high risks or above.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 3841-3845
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.3841
• Online since: May 2011
• Authors: Zhen Wei Jiang, Qi Yao Wang
• Keywords: Expected Loss, Ground Fissure, Risk Analysis, Xi’an Metro

References

[1] Jianbing Peng: Active faults and geological hazard in Wei River basin(Northwest University Press, Xi'an 1992), in Chinese.

[2] Jingming Wang: Theory of ground fissures hazards and its application in Chinese(Science and Technology Press of Shaanxi , Xi'an 2000), in Chinese.

[3] Wei Gao, Ganxin Zhang, Junyi Xing et al.: Journal of Northern Jiaotong University, Vol. 23, issue 3(1999), pp.77-81, in Chinese.

[4] Chongxun Mo, Fanggui Liu: Journal of Hydraulic Engineering, Vol. 41, issue 3(2010), pp.319-324, in Chinese.

[5] Jianbing Peng et al.: A Study on the Characteristics of Metro Tunnel Short-distance Parallel to and Crossing Active Ground Fissures with Small-angle and Control Measures, Chang'an University( 2010), in Chinese.

[6] Guangni Xu, Huiming Tang, Si-ji Jia et al.: Research on mathematical model of activities of Xi'an ground fissures, China University of Geosciences, Bureau of Geology and Mineral Resources of Shaanxi Province(1994), in Chinese.

[7] Shaoming Liao, Fangle Peng, Shuilong Shen: Tunnelling and Underground Space Technology, issue 23(2008), pp.421-430, in Chinese.

[8] Qiangbing Huang, Jianbing Peng, Yuming Men: Chinese Journal of Rock Mechanics and Engineering, Vol. 27, issue 11(2008), pp.2324-2331, in Chinese.