滑坡泥石流风险防御工程效益评估的最优值距模型  

The optimal value model for the benefit from mitigation measures reducing landslide and debris flow

作　　者：乔建平[1,2] 黄栋[1,2] 王萌[1,2] 吴彩燕[3] QIAO Jianping HUANG Dong WANG Meng WU Caiyan(Key Laboratory of Geo-Surface Process and Mountain Hazards, CAS, Chengdu, Sichuan 610041 China Institute of Mountain Hazards and Environment, CAS, Chengdu, Sichuan 610041, China Southwest University of Science and Technology, Mianyang, Sichuan 621000, China)

机构地区：[1]中国科学院地表过程与山地灾害重点实验室,四川成都610041 [2]中国科学院成都山地灾害与环境研究所,四川成都610041 [3]西南科技大学,四川绵阳621000

出　　处：《中国地质灾害与防治学报》2017年第3期80-86,共7页The Chinese Journal of Geological Hazard and Control

基　　金：成兰铁路泥石流监测预警项目

摘　　要：本文在建立风险防治工程投资效益比(λ)、风险损失比(μ)、风险折减率(ΔR)3项评价指标后,首先建立单项指标效益的评价模型及评判标准,其次分别按3项效益指标内容对滑坡泥石流风险防御工程治理效益进行单项统计,最后应用最优值距离法综合分析3项指标统计结果,并给出5级效益评判标准。经过实例应用,该方法量化程度高、可靠性增强、具有较强的客观性,有一定的应用价值。This paper proposed a method to evaluate the risk effectiveness of engineering prevention countermeasures for landslides and debris flows. Based on the evaluation model and index including benefit rate（ λ）,risk loss rate（ μ） and risk reduction rate（ ΔR） parameters,the risk effectiveness of disaster prevention countermeasures can be calculated according to the statistics of parameters,then risk effectiveness can be comprehensively evaluated by means of the optimum distance method,finally the evaluation of the risk effectiveness for landslides and debris flows engineering prevention countermeasures can be given by a effectiveness standard with 5 levels. According to the case study and application,this method is proved to be simple,objectivity,and applicable for practice.

关 键 词：滑坡 工程 效益 最优距 

分 类 号：P642.23[天文地球—工程地质学]