灾害学2018，Vol.33Issue(1)：206-212,7.DOI:10.3969/j.issn.1000-811X.2018.01.036
基于AHP-Fuzzy和激光点云数据的公路边坡危险性评估研究
Research on Risk Evaluation of Highway Slope Based on AHP-Fuzzy and Laser Point Cloud Data
摘要
Abstract
In view of the current highway slope risk assessment mostly to judge the risk level,rarely go deep into the specific point of the problem;put forward a method for evaluating risk of highway slope based on AHP-Fuzzy and laser point cloud data.In this method,first of all,the highway is divided into several sections according to the geological condition,secondly,the AHP-fuzzy comprehensive evaluation method is used to carry out a overall assessment and determine the dangerous slope,thirdly,using vehicle LiDAR system to obtain two period laser point cloud data of each dangerous slope,and building two-period DEM model for the dangerous slope.meanwhile,the two-period model were analyzed and compared by the method of chromatography analysis for local evaluation and find out the specific risk,finally,according to expert opinion to determine the risk of the type of disaster,and put forward the corresponding prevention and control recommendations.Taking a highway in Chongqing city as an example,a new method is used to evaluate it,results show that,the study area 4,8,10 sections of a large risk,prone to landslides and the proposed timely prevention and control measures.Compared with the traditional method,this method can not only determine the dangerous slope,but also find out the concrete danger point,which opens up a new way for the research of the highway slope disaster prevention and reduction.关键词
公路边坡/危险性评估/AHP-Fuzzy评价法/车载LiDAR系统/激光点云数据/防灾减灾Key words
highway slope/risk assessment/AHP-Fuzzy evaluation method/vehicle LiDAR system/laser point cloud data/disaster prevention and mitigation分类
资源环境引用本文复制引用
刘洋洋,李永强,郭增长,李有鹏..基于AHP-Fuzzy和激光点云数据的公路边坡危险性评估研究[J].灾害学,2018,33(1):206-212,7.基金项目
国家自然科学基金项目(41501491) （41501491）
国家测绘局测绘地理信息公益性行业科研专项项目(201412020) （201412020）
河南省重点科技攻关项目(112102210193). （112102210193）
