| A Hazard Assessment Method for Potential Earthquake-Induced Landslides – A Case Study in Huaxian County, Shaanxi Province |
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| 作者姓名： | LIU Jiamei GAO Mengtan WU Shuren WANG Tao and WU Jian |
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| 作者单位： | 1 Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2 Key Laboratory of Neotectonic Movement & Geohazards, Ministry of Land and Resources, Beijing 100081, China
3 Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| 基金项目： | This study was jointly funded by the National Natural Science Foundation of China (41572313), Geological Survey Project (12120114035501), and the China National Special Fund for Earthquake Scientific Research (201408014). The 30-m DEM data were downloaded from the Scientific Data Center of Computer Network Information Center, Chinese Academy of Sciences (http://www.gscloud.cn/). Associate Researcher Shi Jusong from the China Geological Survey and Doctor Xin Peng from the Institute of Geomechanics provided related data on active faults and geology. We express our sincere gratitude to all of the above institutions and individuals. |
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| 摘 要： | The hazard assessment of potential earthquake-induced landslides is an important aspect of the study of earthquake-induced landslides. In this study, we assessed the hazard of potential earthquake-induced landslides in Huaxian County with a new hazard assessment method. This method is based on probabilistic seismic hazard analysis and the Newmark cumulative displacement assessment model. The model considers a comprehensive suite of information, including the seismic activities and engineering geological conditions in the study area, and simulates the uncertainty of the intensity parameters of the engineering geological rock groups using the Monte Carlo method. Unlike previous assessment studies on ground motions with a given exceedance probability level, the hazard of earthquake-induced landslides obtained by the method presented in this study allows for the possibility of earthquake-induced landslides in different parts of the study area in the future. The assessment of the hazard of earthquake-induced landslides in this study showed good agreement with the historical distribution of earthquake-induced landslides. This indicates that the assessment properly reflects the macroscopic rules for the development of earthquake-induced landslides in the study area, and can provide a reference framework for the management of the risk of earthquake-induced landslides and land planning.
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| 关 键 词： | earthquake-induced landslide hazard assessment Newmark displacement model Monte Carlo |
| 收稿时间： | 2015/7/31 0:00:00 |
| 修稿时间： | 2016/2/28 0:00:00 |
A Hazard Assessment Method for Potential Earthquake-Induced Landslides-A Case Study in Huaxian County,Shaanxi Province |
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| Authors: | LIU Jiamei GAO Mengtan WU Shuren WANG Tao WU Jian |
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| Institution: | 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, China;2. Key Laboratory of Neotectonic Movement & Geohazards, Ministry of Land and Resources, China;3. Institute of Geophysics, China Earthquake Administration, China |
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| Abstract: | The hazard assessment of potential earthquake‐induced landslides is an important aspect of the study of earthquake‐induced landslides. In this study, we assessed the hazard of potential earthquake‐induced landslides in Huaxian County with a new hazard assessment method. This method is based on probabilistic seismic hazard analysis and the Newmark cumulative displacement assessment model. The model considers a comprehensive suite of information, including the seismic activities and engineering geological conditions in the study area, and simulates the uncertainty of the intensity parameters of the engineering geological rock groups using the Monte Carlo method. Unlike previous assessment studies on ground motions with a given exceedance probability level, the hazard of earthquake‐induced landslides obtained by the method presented in this study allows for the possibility of earthquake‐induced landslides in different parts of the study area in the future. The assessment of the hazard of earthquake‐induced landslides in this study showed good agreement with the historical distribution of earthquake‐induced landslides. This indicates that the assessment properly reflects the macroscopic rules for the development of earthquake‐induced landslides in the study area, and can provide a reference framework for the management of the risk of earthquake‐induced landslides and land planning. |
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| Keywords: | earthquake‐induced landslide hazard assessment Newmark displacement model Monte Carlo |
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