灾害学2017，Vol.32Issue(1)：80-84,116,6.DOI:10.3969/j.issn.1000-811X.2017.01.014
扎木弄沟滑坡型泥石流物源及堵河溃坝可能性分析
Volume of Loose Materials and the Analysis of Possibility of Blocking and Dam Break Triggered by Debris Flows in Zhamunonggou
摘要
Abstract
The study of volume of loose materials and the possibility of blocking and dam break triggered by debris flow mobilization from landslides in Zhamunonggou has important scientific and engineering significance. Firstly,we get the total volume of source of debris flow based on the engineering geology analysis method and field investigation.Secondly,we estimated the deposition range and depth of future debris flow by three dimensional nu-merical simulations.Lastly,we get the possibility of debris flow blocking river and dam break by the analysis of deposition and material composition of the dam in 2000.The following conclusions are obtained through the study:(1)the total volume of loose materials of debris flow is 2.37 ×108m3;(2)under the earthquake (seismic intensity isⅧdegrees)and extreme climate conditions,debris flow mobilization from landslides similar to the 2000 incident are likely to cause blockage;(3 )dam break risk may increase gradually with the starting volume increases.关键词
滑坡型泥石流/堵河数值模拟/扎木弄沟/西藏波密县易贡乡/川藏铁路Key words
debris flow mobilization from landslides/numerical simulation of blockage model/Zhamunonggou in Tibet/Sichuan Tibet railway/Yigong county of Bomi in Tibet分类
资源环境引用本文复制引用
李俊,陈宁生,欧阳朝军,李爱国,左玺龙..扎木弄沟滑坡型泥石流物源及堵河溃坝可能性分析[J].灾害学,2017,32(1):80-84,116,6.基金项目
国家自然科学基金重大项目 （）
