基于GIS的断层构造对滑坡灾害发育控制作用分析——以雅安市雨城区为例  

Sensitivity Analysis of Fault Structure and Regional Landslide Based on GIS

作　　者：曹洪洋[1] 陈继华[1] 高彦丽[1] 

机构地区：[1]石家庄经济学院勘查技术学院,石家庄050031

出　　处：《地球与环境》2012年第4期595-598,共4页Earth and Environment

基　　金：河北省自然科学基金资助(E2009000943);国土资源公益性行业科研专项项目(201011003);河北省科技支撑项目(11237174)

摘　　要：断层是滑坡发育的影响因素之一。选择雅安市雨城区和区域内232处滑坡作为研究的基础资料,通过地理信息系统空间分析技术及作者提出的滑坡影响因子贡献率的方法,得到了研究区内断层100m和200m缓冲区对滑坡的贡献率,定量研究了断层对研究区域滑坡发育的关系。研究结果表明,研究区域断层对滑坡敏感性不大,100m断层缓冲区较200m断层缓冲区贡献率值较大,为下一步研究区域滑坡危险度区划奠定了基础,同时为区域防灾提供了科学依据。The fault structure is one of the indispensable factors which lead to landslides. The 232 landslides which happened in the Yucheng district, Ya＇an City, were used as the basis data. The contribution rates of 100 m and 200 m of buffer zone of faults were calculated by GIS technology and the proposed landslide influence factor contribution rate method. The relationship between faults and landslides was quantitatively described through the above method. It is shown that the faults have little as- sociation with the landslides and the 100 m buffer zone is more sensitive than the 200 m buffer zone. The result has laid down a foundation for the regional landslide danger division and disaster prevention.

关 键 词：区域滑坡灾害 断层 地理信息系统 敏感性分析 

分 类 号：P694[天文地球—地质学]