摘要
通过对福建省台风暴雨特征的详细分析,结合沿台风"莫拉克"路径对省内新发生滑坡进行的追踪调研,总结出台风暴雨条件下滑坡发生的背景环境,分析了台风暴雨各个特征要素与滑坡之间的关系:滑坡与台风中心登陆区域及登陆后的运行轨迹具有很强的一致性,台风登陆当天降雨对滑坡起决定性作用,当台风登陆当日降雨量达到100 mm或60 mm的3 h极值降雨量时,易触发"即雨即滑"群发式小型浅层土质滑坡。
Based on detailed analysis of the characteristics of typhoon rainstorm in Fujian Province, and the investigation of new landslides caused by the typhoon Morakot, this study summarized the occurring setting of landslides under typhoon rainstorm conditions. The analysis on the relationship between various factors of typhoon rainstorm and landslides reveals that ： （ 1 ） The landslide track corresponds well with that of the typhoon in its landing area and after its landing; （2） The rainfall on the typhoon landing day exerts a critical role on landslides; （3） When the rainfall amount exceeds 100 mm or the rainfall extremum in three hour exceeds 60 mm on a typhoon landing day, swarm-type small shallow soil landslides of ＂synchronous rainstorm with landslide＂ tend to be triggered.
出处
《地质学刊》
CAS
2015年第4期697-701,共5页
Journal of Geology
基金
中国地质调查局项目"闽东南地区台风暴雨型地质灾害监测预警示范"(1212010740906)
关键词
台风暴雨
莫拉克
滑坡
福建
typhoon rainstorm
Morakot
landslide
Fujian Province
