四川省江油市滑坡灾害空间发育分布规律研究

Study on the Spatial Distribution Characteristics of Landslide Disasters in Jiangyou City,Sichuan Province

本文以四川省江油市为研究区,根据地质灾害现场调查、应急排查与区划报告和数据库,获取地质灾害985处,类型主要有滑坡、崩塌、泥石流及地面塌陷,其中滑坡798处,占地质灾害总数的81.02%。统计分析了滑坡数量、点密度与高程、坡度、坡型、坡体结构、年均降雨量和距断层距离等滑坡重要影响因子之间的关系,研究结果可为危险范围预测及重点防治区域区划等提供理论依据。

Taking Jiangyou City of Sichuan Province as the study area,this paper obtained 985 geological disasters according to the field investigation,emergency investigation,planning report and database of geological disasters,mainly including landslide,collapse,debris flow and ground collapse,among which 798landslides,accounting for 81.02% of the total geological disasters.The relationship between the number of landslides,point density and other important factors influencing landslides,such as elevation,slope,slope type,slope structure,annual rainfall and distance from the fault,were analyzed statistically.The research results can provide theoretical basis for the prediction of the danger scope and the division of key prevention areas.