Study on Sensitivity of Road Geological Hazards Based on Entropy Method and Information Model
In order to explore the distribution law of geological disasters in the expressway area of Zhejiang Province,based on the GIS technology platform,the entropy theory and information model were applied to analyze the ground elevation,rainfall,vegetation coverage and other indicators,and the sensitivity of expressway area was evaluated.The results show that the disasters of expressway in Zhejiang Province are mainly distributed in the southwest mountainous areas,and mainly landslides;the disaster area ratio increases with the increase of ground elevation,ground slope,ground undulation,rainfall and vegetation coverage,and decreases with the increase of distance from rivers;after classifying the disaster sensitivity within 2 km of the expressway,the extremely high sensitive area,the high sensitive area,the medium sensitive area,the low sensitive area and the extremely low sensitive area account for 3.56％,31.09％,45.35％,19.72％and 0.28％respectively.The high sensitive area is mainly distributed in the southwest of Zhejiang Province.
万方数据
维普
