Slope Debris Flows in the Wenchuan Earthquake Area
Slope Debris Flows in the Wenchuan Earthquake Area作者机构：State Key Laboratory of Hydroscienee and Engineering Tsinghua University Beijing 100084 China Beijing Institute of Geology for Mineral Resources Beijing 100012 China
出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)
年 卷 期：2010年第7卷第3期
页 面：226-233页
核心收录：
学科分类：081401[工学-岩土工程] 08[工学] 0814[工学-土木工程]
基 金：supported by the Ministry of Science and Technology of China (2008CB425803) the State Key Laboratory of Hydroscience and Engineering at Tsinghua University (50823005,2009-ZY-2)
主 题：Slope debris flow rainfall intensity Wenchuan Earthquake landslide avalanche
摘 要：Avalanches and landslides,induced by the Wenchuan Earthquake on May 12,2008,resulted in a lot of disaggregated,solid material on slopes that could be readily mobilized as source material for debris *** triggered numerous slope debris flows with great damage to highways and rivers over the subsequent two *** debris flows(as opposed to channelized debris flows) are defined as phenomena in which high-concentration mixtures of debris and water flow down slopes for short distances to highways and river *** on field investigations and measurements of 19 slope debris flows,their main characteristics and potential mitigation strategies were *** rainfall intensity is the main triggering *** rainfall intensities for simultaneous occurrence of single,several and numerous slope debris flow events were 20 mm/day,30mm/day,and 90 mm/day,*** investigations also revealed that slope debris flows consist of high concentrations of cobbles,boulders and *** are two-phase debris *** liquid phase plays the role of lubrication instead of transporting *** particles collide with each other and consume a lot of *** velocities of slope debris flows are very low,and their transport distances are only several tens of *** debris flows may be controlled by construction of drainage systems and by reforestation.
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