Assessment of geological hazards risk based on analytic hierarchy process

Taking 1:50, 000 geological hazards survey projects from Xiushui county, Jiujiang city in Jiangxi province as the basis, combined with regional geological conditions and geological hazards development overview in Xiushui county, selected eight indicators such as lithology, geological structure, rainfall, slope structure type, slope, high slope, aspect and human engineering activities, constitute research evaluation system of geological disasters risk.And established hierarchical model of geological hazards risk assessment in Xiushui county which based on the analytic hierarchy process.Calculated the weight of each index value by constructing a matrix of pair wise judgment.Finally, according to the analysis results, the study area is divided into high-risk areas, dangerous areas and low-risk areas, and conducted the corresponding analysis and evaluation.The results showed that: The application effects of AHP in the regional geological hazard assessment are good; and the evaluation results are basically consistent with the results of the field investigation.What's more, it will provide some references for the prevention of geological hazards and town planning and construction in Xiushui county.