地质灾害危险性综合评估半定量方法在西安至安康增建第二线工程中的应用

摘要

以改建西安至安康铁路增建第二线工程地质灾害危险性评估为例，通过在综合评估量化评分方法的应用实践，对评估因子的选取和分级取值、危险性等级划分和各级分值范围确定、评分方法和步骤等方面进行探讨。结果表明，在量化评分方法基础上，对地质灾害危险性分区能够较好地反映多因素的综合影响，使综合评估结论更加符合实际。%The risk evaluation of geological hazard for the project of supplemented second line of redeveloped Xi’an-Ankang Railway was taken as the example in this thesis. And then, in combination with the actual experiences on comprehensive evaluation with the quantitative scoring method, a series of issues were analyzed, such as the choice and classification of the evaluation factors, the grading and scoring at all levels of risks, the scoring method and procedure, etc. The analysis results show that if the risks of geological hazards were zoned based on the quantitative scoring method, the comprehensive influences of multiple factors would be better reflected and the conclusion of comprehensive evaluation would be much more in accordance with the actual.