摘要
受“4·25”尼泊尔地震影响,萨迦县地质灾害频发,因此以GF-1、GF-2影像为数据源对全县地质灾害情况进行了详细遥感解译。同时,根据县内地质环境等确定了坡度、岩土体性质、构造、水文等四个基础影响因子,利用层次分析法基于ArcGIS软件进行地质灾害危险性评价并制图。将评价结果与遥感解译成果对比发现,两者高度吻合,表明了本文研究成果与实际情况切合度高,对萨迦县地质灾害防治规划有指导意义。
Recently,geological disasters occur frequently in Sakya County due to the“4·25”Perle earthquake,the GF-1 and GF-2 images are used as the data source for the detailed interpretation of remote sensing of the geological disasters.At the same time,according to the geological environment in the county,four basic factors including the slope,rock and soil properties,geological structure and hydrology conditions,were determined,and the risk assessment and mapping of geological hazard based on ArcGIS software was made by AHP.The evaluation results and the remote sensing interpretation results are compared,they are highly consistent,which show that the research results conform with the actual situation in high degree,this study has guiding significance for geological disaster prevention and control planning in Sakya County.
作者
周学铖
廖黎明
ZHOU Xuecheng;LIAO Liming(Sichuan Institute of Nuclear Geology,Chengdu, Sichuan 610052,China)
出处
《中国地质灾害与防治学报》
CSCD
2019年第6期113-116,共4页
The Chinese Journal of Geological Hazard and Control
基金
“4·25”尼泊尔地震西藏日喀则市灾区地质灾害详细调查项目(HDZB-RKZDZ-RKZXXTC160717)
关键词
萨迦县
坡度
岩土体性质
构造
水文
地质灾害
危险性评估
Sagya County
slope
geotechnical properties
structure
hydrology
geological disaster
risk assessment
