基于层次分析法的土质边坡风险分区研究  

Risk Zoning of Soil Slope Based on Analytic Hierarchy Process

作　　者：谭玲[1] 张帮鑫 黄河[1] 徐峰 TAN Ling;ZHANG Bangxin;HUANG He;XU Feng(China Merchants Chongqing Communication Research and Design Institute Co.,Ltd.,Chongqing 400067,China)

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《重庆交通大学学报（自然科学版）》2024年第12期18-26,共9页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家重点研发项目(2022YFC3002603);自治区重大科技专项/重点研发任务专项项目(2022B03033-2);重庆市自然科学基金面上项目(CSTB2023NSCQ-MSX0878);重庆市技术创新与应用项目(cstc2021jscx-msxmX0004)。

摘　　要：传统边坡监测侧重于边坡整体,对边坡的局部变形破坏关注度较低,且传统监测技术精度低、时效性差,无法实现对局部变形的及时捕捉。为此,笔者以土质边坡为研究对象,首先,基于层次分析法构建了边坡危险性等级模型,依据危险等级对边坡进行了监测分级;然后,对不同监测等级边坡制定初始分区和分区优化方案,实现对边坡的分区划定;最后,结合重庆万州某高速土质边坡对提出的分区技术体系进行了可行性和可靠性验证。研究结果表明:基于边坡分区进行针对性监测,可实现局部变形的快速捕捉;边坡分区监测相比常规监测的设备非冗余布设水平更高;依据边坡分区制定的监测方案更科学、监测结果更可靠,表明分区技术体系可行,可为其他类型边坡监测提供新的解决思路。Traditional slope monitoring focuses on the slope as a whole and pays less attention to the local deformation and damage of the slope,and the traditional monitoring technology has low precision and poor timeliness,which couldnt realize the timely capture of local deformation.Therefore,the soil slope was taken as the research object.Firstly,a slope hazard level model was constructed on the basis of analytic hierarchical analysis method,and the slope was monitored and classified according to the hazard level.Then,initial zoning and zoning optimization plans were developed for slope with different monitoring levels,which realized the zoning delineation of slopes.Finally,the feasibility and reliability of the proposed zoning technology system were verified by combining with the soil slope of a highway in Wanzhou,Chongqing.The research results show that the targeted monitoring based on slope zoning can realize rapid capture of local deformation,and slope zoning monitoring has a higher level of non-redundant equipment deployment compared to conventional monitoring.The monitoring scheme based on slope zoning is more scientific and the monitoring results are more reliable,which indicates that the zoning technology system is feasible.The results of the study can provide new solutions for monitoring other types of slopes.

关 键 词：道路工程 风险分区 层次分析法 土质边坡 监测 

分 类 号：U416.14[交通运输工程—道路与铁道工程]