Study On The Risk Assessment Of Geological Hazard In The Isolated Mountain Hydropower Station Based On GIS

This research mainly studies the regional risk assessment system.In the process of the study,it mainly evaluates the risk situation of the isolated mountain hydropower station area.Firstly,the disaster historical data of the region is collected,and the relevant geological conditions,population information and environmental climate of the region are collected.After the study of these factors,the geological risk area of the region is divided,and the main reasons for the occurrence of disasters in the region are analyzed by five factors,such as runoff.Through the study of the five factors in the region so as to realize the evaluation of risks in the region,the final evaluation results are coincide with each other between the region's risk profile is,therefore,the research results are as follows:(1)Because geomorphic features of xiaogushan hydropower station is a typical,therefore in the process of study is mainly used to create a complete set of evaluation system to evaluate the risk of the region,the system is mainly implemented in the process of building thought GIS basis,use the relevant technical route and evaluation method to establish,the system includes the selection of evaluation factors,the establishment of the relevant indicators,the establishment of the database and the establishment of the evaluation model and so on several parts.(2)Firstly,the relevant database is established,which is based on the relevant research data of GIS.(3)Based on GIS,relevant evaluation indexes are established.(4)Based on GIS,a mathematical evaluation model is established and the application ofthis model is realized.(5)According to different evaluation results to get the final distribution of risk injury.