| 暴雨作用下基于滑坡互信息量的白家包滑坡变形响应机制研究 |
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| 引用本文： | 李长冬,冼进业,刘勇,彭涛,左清军,龙晶晶,冯鹏飞,李炳辰.暴雨作用下基于滑坡互信息量的白家包滑坡变形响应机制研究[J].湖北气象,2021(1). |
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| 作者姓名： | 李长冬 冼进业 刘勇 彭涛 左清军 龙晶晶 冯鹏飞 李炳辰 |
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| 作者单位： | 中国地质大学（武汉）工程学院;中国地质大学（武汉）机械与电子信息学院;中国气象局武汉暴雨研究所暴雨监测预警湖北省重点实验室;三峡大学湖北长江三峡滑坡国家野外科学观测研究站 |
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| 基金项目： | 国家重点研发计划项目(2018YFC1507200);国家自然科学基金优秀青年科学基金项目(41922055)。 |
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| 摘 要： | 暴雨是诱发滑坡的重要因素之一,但目前对于暴雨作用下滑坡变形响应机制的研究仍不充分。该文以三峡库区白家包滑坡为例,在滑坡详细监测数据的基础上,分析了暴雨作用下白家包滑坡的变形响应特征;采用滑坡互信息量方法揭示了暴雨作用下降雨及库水位变动对白家包滑坡变形的影响规律。结果表明:白家包滑坡变形主要受库水位变动影响,坡表裂缝扩张主要受降雨影响;暴雨是诱发滑坡加速变形及边界处的坡表裂缝快速扩张的主要因素。该文的研究方法可推广到其它多条件联合作用下滑坡响应规律的分析,为类似暴雨作用下水库滑坡防灾减灾提供一定参考。
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| 关 键 词： | 白家包滑坡 暴雨 互信息量 变形响应机制 库水位 |
Response mechanism of Baijiabao landslide deformation under rainstorm based on landslide joint mutual information |
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| LI Changdong,XIAN Jinye,LIU Yong,PENG Tao,ZUO Qingjun,LONG Jingjing,FENG Pengfei,LI Bingchen.Response mechanism of Baijiabao landslide deformation under rainstorm based on landslide joint mutual information[J].Meteorology Journal of Hubei,2021(1). |
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| Authors: | LI Changdong XIAN Jinye LIU Yong PENG Tao ZUO Qingjun LONG Jingjing FENG Pengfei LI Bingchen |
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| Institution: | (Faculty of Engineering,China University of Geosciences(Wuhan),Hubei,Wuhan,430074;School of Mechanical Engineering and Electronic Information,China University of Geosciences(Wuhan),Hubei,Wuhan,430074;Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research,Institute of Heavy Rain,China Meteorological Administration,Hubei,Wuhan,430205;National Field Observation and Research Station of Landslides in Three Gorges Reservoir Area of Yangtze River,China Three Gorges University,Hubei,Yichang 443002) |
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| Abstract: | Rainstorm is one of the most important factors for inducing landslide,but researches on the response mechanism of landslide deformation under the action of torrential rain are still insufficient.In view of this situation,Baijiabao landslide in the Three Gorges Reservoir area is taken as an example,to analyze the deformation response characteristics under the circumstance of rainstorm on the basis of detailed monitoring data.A landslide mutual information method is used to reveal the influences of rainfall and reservoir water level variation on the deformation of Baijiabao landslide under rainstorm conditions.The deformation of Baijiabao landslide is mainly affected by the variation of reservoir water level,and the expansion of slope surface cracks is mainly triggered by rainfall.Rainstorm is the main cause of the accelerated deformation of landslide after rain and rapid expansion of slope surface cracks located in the boundaries.The research method in this paper can be extended to the analysis of the response characteristics of landslide under the combined action of other multi-conditions and provide some references for disaster prevention and mitigation of the reservoir landslides under the similar effect of rainstorm conditions. |
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| Keywords: | Baijiabao landslide rainstorm mutual information deformation response mechanism reservoir water level |
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