陕西省宝鸡市渭滨区地质灾害风险评价  

Risk evaluation of geological hazards in Weibin District,Baoji City,Shaanxi Province,China

作　　者：张春山[1,2] 何淑军[1] 辛鹏[1] 孙炜锋[1,2] 谭成轩[1,2] 吴树仁[1,2] 王涛[1] 刘鑫[1] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]国土资源部新构造运动与地质灾害重点实验室,北京100081

出　　处：《地质通报》2009年第8期1053-1063,共11页Geological Bulletin of China

基　　金：科技部科技支撑项目(编号:2006BAC04B05;2008BAK47B04);中国地质调查局地调项目(编号:1212010640401);国土资源部新构造运动与地质灾害重点实验室;中国地质科学院重点开放实验室专项资金联合资助

摘　　要：在渭滨区地质灾害详细调查的基础上,通过统计分析确定了各类地质灾害危险性和易损性的主要影响因素,采用模型方法和定性评价方法分别进行了地质灾害的危险性评价和易损性评价,在此基础上进行了地质灾害风险评价。渭滨区地质灾害类型主要为滑坡、崩塌、泥石流3种,共发育地质灾害隐患点123个,其中有16个点直接威胁人民的生命和财产。分别统计了渭滨区各乡镇地质灾害的多少和危害程度,总结了区域内地质灾害的分布特征,分析了地质灾害的形成条件,建立了地质灾害风险评价的指标体系,确定了地质灾害危险性、易损性和风险的判别标准,进行了地质灾害风险性评价与区划。共划分为极高风险区、高风险区、中风险区、低风险区和极低风险区5个等级。Based on detailed investigation of geologicai hazards in Weibin District, Baoji City, this＇paper has selected the main influence factors for geo-hazard fatalness and vulnerability evaluation by statistic analysis, and later specific evaluation was carried out using the experimental modeling and qualitative method, thus resulted into comprehensive risk evaluation. There are three major geological hazards types, namely landslide, collapse, debris-flow in Weibin District. In total there are 123 potential troubles, and of which 16 are imposing certain threat to people＇s life and property. This paper has concluded the amount and fatalness of geo-hazard in all the towns and villages of Weibin District, and summarized the distribution feature and analyzed the forming conditions of geological hazards within this area, moreover, and an index system of systematic geo-hazard risk evaluation was set up. Assessment specification and rule for fatalness, vulnerability and risk are specified, thus a regional geo-hazard risk evaluation and zoning is carried out. 5 levels are classified in terms of geo-hazard risk, namely extra-high risk, high risk, medium risk, low risk and extra-low risk.

关 键 词：宝鸡市渭滨区 地质灾害 危险性评价 易损性评价 风险评价 

分 类 号：P694[天文地球—地质学]