A Method for Graded Prevention and Control of Geological Disasters in the Longdong Xifeng District based on Weight Vector Analysis

The scientific classification of geological disasters is related to the research and prevention of geological disasters and the establishment of the discipline of geological disasters, and it is the basis for the classification of geological disasters. We take Longdong Xifeng District as the research object, borrows GIS platform to establish a database, synthesize existing geological information, analyzes and study the development law of geological problems in Longdong Xifeng District, and applies weight vector analysis method to calculate slope, slope type, etc. Information, drawing the geological problem distribution model of the entire area, and analyzing the proneness of geological problems. The results showed that the area of high-prone areas accounted for 48.96% of the total area, the middle-prone areas accounted for 22.64%, and the low-prone areas accounted for 28.4%.