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Abstract
City roads are playing vital roles in the economic development. And both highway roadbeds take place geological disasters frequently. This article evaluates geological disasters with the method of AHP. The indexes include lithology, geological structure, slope, high slope, slope structure types, groundwater, slope size, rainfall, river erosion, slope back excavation, earthquake, etc. Through the analysis of the formation mechanism and impact factors in landslide, the model of landslide hazard assessment is established. Then landslide risk factors are partitioned into different levels, and seven part of geological disasters area are calculated. At last determine the risk level of landslide areas comparing with the risk classification table.
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