地质灾害的形成机理与易发性评价方法研究

Study on formation mechanism and proneness evaluation method of geological disaster

针对承德市地质灾害的发育特征,深入分析了地质灾害发育的影响因素,通过将地质灾害与影响因素进行关联性分析,阐述了其成因机理。然后将影响因素作为评价指标进行量化,依照其影响程度的大小,运用层次分析法进行权重分析计算,最后通过地理信息系统GIS进行叠加计算,形成地质灾害易发性评价分区图。

This paper discussed the development characteristics of geological disaster in Chengde and analyzed the factors of geological disaster deeply. On the basis of correlation analysis between geological disaster and influential factor, the formation mechanism of geological disaster was expounded, and the influential factors of geological disaster as evaluation indices were quantized. Then, AHP was used to determine the weight of each influential factor based on the degree of influential factors that influence the geological disaster. Finally, the geological disaster- prone zoning map was accomplished by the application of overlay and calculation functions of GIS.