摘要
云南省东川市泥石流灾害风险分析的主要内容包括危险性评价、易损性评价、破坏报失评价、防治工程评价。得出：该市泥石流危害区面积３．９ｋｍ￣２；１９５０－１９９２年灾害总计损失１９６３６万元，平均每年４３７万元；防治工程已投入１３８０万元，规划再投入１０７０万元，总计投入２４５０万元，可减少灾害损失约６．９亿元，投效比１：２８．东川市泥石流防治不但具有显著经济效益和社会效益，而且对其他地区地质灾害防治亦具有典型意义．
The risk analysis on mud-rock flow disaster in Dongchuan city．Yunnan Province，mainly includes hazardous evaluation，damage sensitlvity evaluation，damage evaluation and prevention and control works evaluation。It was concluded that：the mud- rock flow harmed area is 3．9 km^2；the total economic losses resulted from disaster is 193．66 million yuans from 1950 to 1992（average of 4．37 million yuans per year）；the expenditure on the prevention and control works is totally 24．5 million yuans，of which 13．8 million vuans have been spent and 1．07 million are in plan；the losses will be decreased about 690 million yuans by works，with an investment／profit ratio of 1：28．The prevention and control of mud-rock flow in Dongchuan is not only of remarkable economic and social profit，but also of typical significance to the prevention and control of geological disasters in other areas。
出处
《地质灾害与环境保护》
1995年第1期25-34,共10页
Journal of Geological Hazards and Environment Preservation
关键词
东川市
泥石流
风险分析
灾害
Doapchuan city Mud-rock folw Risk analvsis
