山区沿河公路崩滑灾害危险性评价方法及应用——以横断山区美姑河流域公路崩滑灾害为例  

Collapse and Landslide Hazard Evaluation of Mountainous Highway along River——Taking collapse and landslide hazard along Meigu river highway in Hengduan Mountains as an example

作　　者：陈远川[1,2] 陈洪凯[2] 唐红梅[2] 

机构地区：[1]重庆文理学院经济管理学院,重庆402160 [2]重庆交通大学岩土工程研究所,重庆400074

出　　处：《烟台大学学报（自然科学与工程版）》2013年第3期217-224,共8页Journal of Yantai University(Natural Science and Engineering Edition)

基　　金：西部交通建设科技项目(2009318221035)

摘　　要：出于山区沿河公路崩滑灾害防治决策的需要,针对山区沿河公路沿线区域崩滑灾害发育的特点,从崩滑灾害孕灾环境和致灾因子两方面对山区沿河公路崩滑灾害危险性进行了综合评价.以地理信息系统和遥感解译为手段,建立崩滑灾害编录和因素基础数据库、遴选评价指标;以历史崩滑灾害面积分布信息熵为基础,计算指标权重;并在统计量化指标崩滑信息指数的基础上,建立了山区沿河公路崩滑灾害危险性评价方法.将该方法用于美姑河省道公路沿线的崩滑灾害危险性评价,结果与研究区实际灾情比较吻合,可为山区沿河公路崩滑灾害减灾决策提供依据.To support landslide-collapse mitigation decision of mountainous highway along river, and according to developing characteristic of the landslide-collapse, hazard for landslide-collapse of mountainous highway along fiver is comprehensively evaluated from disaster-breeding environment and disaster-inducing factors. Using GIS and re-mote sensing image interpretation, landslide-collapse disaster inventory and disaster factors database are estab-lished, and assessing indexes are selected simaltaneously. The weight for each index is calculated based on histori-cal landslide-collapse area distribution information entropy. The landslide-collapse hazard evaluation method is es-tablished after quantitative statistics of landslide-collapse index. The method is applied to the hazard evaluation for landslide-collapse along Meigu River. The comparison between results of this method and the actual disaster situa-tion of research area shows that the present method has certain reliability. The hazard evaluation result can provide the reference for landslide-collapse mitigation decision-making of mountainous riverbank highway.

关 键 词：沿河公路 危险性评价 崩滑灾害 信息熵 美姑河流域 

分 类 号：U418.54[交通运输工程—道路与铁道工程] P642.2[天文地球—工程地质学]