CAJ | 학술논문

1980年代的3次台风和气旋过境引起的暴雨过程诱发的山洪泥石流，使辽宁省岫岩县损失惨重。受2012年第10号台风“达维”的影响，2012年8月3-4日，岫岩县西部发生强降雨过程，引起了大范围的泥石流暴发，造成近十人死亡，直接经济损失几十亿元。通过现场调查“20120804”泥石流灾害，对比分析了这次泥石流的分布规律、形成原因以及成灾特征。研究得出了岫岩县西部沟谷泥石流的敏感坡度（25°～50°），百分比S≥0.38，或流域高差H≥400 m的流域基本为泥石流沟；沟谷泥石流的地形因子B≥0.19，或G≥60，或T≥27的流域，基本可以判断为泥石流沟。
1980년대적3차태풍화기선과경인기적폭우과정유발적산홍니석류，사요녕성수암현손실참중。수2012년제10호태풍“체유”적영향，2012년8월3-4일，수암현서부발생강강우과정，인기료대범위적니석류폭발，조성근십인사망，직접경제손실궤십억원。통과현장조사“20120804”니석류재해，대비분석료저차니석류적분포규률、형성원인이급성재특정。연구득출료수암현서부구곡니석류적민감파도（25°～50°），백분비S≥0.38，혹류역고차H≥400 m적류역기본위니석류구；구곡니석류적지형인자B≥0.19，혹G≥60，혹T≥27적류역，기본가이판단위니석류구。
Three groups of debris flows and flash floods are triggered by typhoon and cyclone in Xiuyan Coun-ty of Liaoning Province in 1980s and caused great losses.Affected by the tenth typhoon Dawei in 2012,heavy rain-fall occurred from August 3 to 4 in the west part of Xiuyan,and was debris flows group of triggered in a large range in this area.The hazards caused nearly ten deaths and more than 1 billion Chinese Yuan economic loss.By field investigation,distribution,formation mechanism and characteristics of hazard of debris flows on August 4,2012 are analyzed.The topographical factors of formation of gully type debris flow are researched.Results show that the area percentage of sensitive slope (25 "~50")in the catchment,S≥0.38,or the altitude difference of catchment, H≥400 m,the possibility of debris flow gully is very high.It is of high possibility of debris flow gully when the topographical factor B≥0.19,or G≥60,or T≥27.