Seismic hazard assessment of urban underground space based on seismic hazard statistics
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    Abstract:

    Objectives: Earthquake security of buildings should be firstly considered in the urban planning and the process of urban construction. The methods of seismic safety assessment of China mainly focus on surface buildings. However, the study on the earthquake security of underground space is weak, which cannot meet the raising demands for underground space. Active faults are the direct factor of earthquakes and the main cause of buildings damages. As underground spaces whether intersect faults or not, it was divided into cross-fault underground space and far from fault underground space. Methods: This paper reviewed the analytical methods of the seismic hazard assessment of underground space destruction by active fault and summarized the evaluation methods about how seismogenic faults affect underground space in adjacent areas, based on the relationship among coseismic surface rupture, peak acceleration of earthquake, seismic intensity and the focal depth. Results: This paper summarized the method of Seismic hazard assessment of urban underground space based on seismic hazard statistics based on literature review and Shenzhen and Beijing were choosen as examples to show how the method is applied. Conclusions: This paper offered a method based on seismic hazard statistics for studying the seismic hazard assessment of urban underground. And we must stress that this method is based on statistics data. To get a precise evalution, much more researches should be done.

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WANG Qiangmao, LI Hailong, LI Tingdong, YIN Qihang, WANG Yiwen, FAN Yanxia.2019. Seismic hazard assessment of urban underground space based on seismic hazard statistics[J]. Geological Review,65(6):1397-1407.

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History
  • Received:April 26,2019
  • Revised:August 26,2019
  • Adopted:
  • Online: November 15,2019
  • Published: