摘要
四川省雅安市芦山县大川镇洞峡子沟于2011年、2012年连续两年爆发中型泥石流。"4.20"芦山大地震后,松散物源增加。通过对泥石流的地形地貌条件、沟道条件、物源条件、水源条件、冲淤特征及堆积物特征调查,分析了泥石流的基本特征,得到了泥石流影响因素与成因机制,对发展趋势进行了分析。
A mid-scale debris flow occurred in Dongxiazigou, Dachuan Town, Lushan County, Ya’an City, Sichuan Province for two consecutive years in 2011 and 2012.After the "4.20" Lushan earthquake, the loose source increased.Through surveys on the topography, channel conditions, source conditions, water source conditions, scouring and silting characteristics and deposit characteristics of debris flows,Analysis of the basic characteristics of debris flow,Obtained the factors and causes of the debris flow,analyzed the development trends.
作者
何伟
HE Wei(Cecep Construction Engineering Design Institute Limited Company,Chengdu 610052,China)
出处
《地质灾害与环境保护》
2019年第4期3-8,共6页
Journal of Geological Hazards and Environment Preservation
关键词
泥石流
影响因素
成因机制
暴雨
debris flow
influencing factors
genesis mechanism
rainstorm
