综合评价法与功效系数法在滑坡监测预警评价中的应用

Application of Comprehensive Evaluation Method and Efficacy Coefficient Method in Landslide Monitoring and Early Warning Evaluation

本文采用气象因素、地质环境要素与监测指标综合统计法,根据滑坡专业模型,选取模糊综合评价、层次分析法与功效系数法等统计方法,针对降雨诱发型滑坡进行空间预测。根据功效系数法对各个评价指标计算的单项功效系数值gi,结合层次分析法对各个评价指标计算的权重系数ωi,两者相乘得到各个评价对象的总功效系数值,以总功效系数值作为预警等级划分评价标准,根据数值大小划分滑坡预警等级。

This paper adopts the comprehensive statistical method of meteorological factors, geological environment factors and monitoring indicators, according to the professional model of landslide, statistical methods such as fuzzy comprehensive evaluation, analytic hierarchy process and efficacy coefficient method are selected, the spatial prediction of rainfall induced landslide is carried out. The single efficacy coefficient value gi calculated for each evaluation index according to the efficacy coefficient method, combined with analytic hierarchy process, the weight coefficient of each evaluation index is calculated ωi, the total efficacy coefficient of each evaluation object is obtained by multiplying the two, the total efficacy coefficient is used as the evaluation standard for early warning classification, the landslide warning level is divided according to the value.