甘肃省公路地质灾害区划指标体系研究  

Study on Divison Index System of Highway Geologic Hazards in Gansu Province

作　　者：王运周 李志强[1] 

机构地区：[1]甘肃交通职业技术学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2007年第3期17-20,24,共5页Journal of Lanzhou Jiaotong University

基　　金：西部交通建设科技项目(200131800053)

摘　　要：采用定性与定量相结合的方法,基于GIS技术建立甘肃省公路地质灾害区划指标体系.首先以公路地质灾害的孕灾环境和自然灾害类型两个定性指标进行一级分,然后通过公路地质灾害群聚程度指数和发育强度指数两个定量指标,计算公路地质灾害综合灾度指数,依次进行二级分区.最后将甘肃省公路地质灾害分为4个一级区、20个亚区,并详细给出了各亚区的范围、灾害类型及危害程度.The division index system of highway geological hazards in Gansu Province was set up combining the quality and quantitative methods based on GIS. Firstly, the natural hazards environment and types of highway geological hazards in Gansu Province were chosen as the first-grade division index. Secondly, the index of cluster degree and development intensity were calculated to determine the comprehensive hazard index which was used as the second-grade division index. Finally, the highway geological hazards in Gansu Province was divided into 4 first-grade divisions and 20 second-grade sub-divisions, and the distribution scope,hazard type and degree were explained in details.

关 键 词：公路 地质灾害 区划 指标体系 定量化 

分 类 号：P90[天文地球—自然地理学]