Characteristics, causation, and rehabilitation of Zhouqu extraordinarily serious debris flows in 2010, China

作     者：WANG Lan-min WU Zhi-jian WANG Ping CHEN Tuo 

作者机构：Lanzhou Institute of Seismology China Earthquake Administration Lanzhou 730000 China Key laboratory of Loess Earthquake Engineering (China Earthquake Administration) Lanzhou 730000 China Geotechnical Disaster Prevention Engineering Technology Research Center of Gansu Province Lanzhou 730000 China State Key Laboratory of Frozen Soil Engineering (Cold and Arid Regions Environmental and Engineering Institute Chinese Academy of Sciences) Lanzhou 730000 China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2013年第20卷第8期

页      面：2342-2348页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：Foundation item: Projects(40902094, 50978239) supported by the National Natural Science Foundation of China Project(20121ESLZ01) supported by the Institute of Earthquake Prediction, China Earthquake Administration 

主　　题：debris flows hazard assessment geological survey Zhouqu county 

摘      要：In early morning of Aug 8th, 2010, the rain-triggered tremendous debris flows broke out simultaneously at the Sanyanyu ravine and Luojiayu ravine, which locate in the north part of Zhouqu County town. The debris flow is the most severe event of the same kind of disasters in the past sixty years in China, which caused great losses of people s lives and properties. Based on field investigation, remote sensing image interpretation and analysis of local climatological data, the local topographical conditions, active tectonic movement, massive debris source and torrential rains were the main formation causes which induced the catastrophic debris flows. Moreover, detailed geological surveys were carried out following the disaster, the other geological potential hazard sites were found out, and the geological and seismic hazard assessment has been put into practice. At last, scientific and appropriate countermeasures have been suggested to prevent and mitigate the extraordinarily serious debris flow.