Multi-factor Constrained Analysis Method for Geological Hazard Risk

Abstract—Because of the complexity and uncertainty of geological disasters, using GIS technology to take grid transformation for the analyze area, research on the mechanisms and principles of geological disasters were conducted, elevation, slope, lithology, faults, etc. as an evaluation factor, geological disasters risk assessment carried out with mathematical algorithms. Xinjiang Uygur Autonomous Region in the Ili River basin as the experimental area, create 500 * 500m grid covering the study area. With GIS statistical analysis, overlay analysis, spatial analysis to do grid transform and standardization. And finally use information Act to determine the weight and comprehensive assessment. Experimental results show that the actual geological disasters occurred in the geological disaster risk analysis and other areas where a high level of probability is high, indicating that the method of geological disaster warning prediction has some practical significance.