钻探工程2024，Vol.51Issue(4)：117-124,8.DOI:10.12143/j.ztgc.2024.04.015
福建漳州某高速公路滑坡数值分析及加固治理研究
Numerical analysis and reinforcement management of a highway landslide in Fujian Zhangzhou
摘要
Abstract
In order to manage a landslide,a numerical analysis model of the slope was constructed based on the on-site investigation data,taking the inflection point of the displacement of the characteristic point of the slope as the criterion,and adopting the strength discount method to determine the stability coefficient of the natural working condition of the slope to be 1.05,it was determined that the stability level of the slope did not meet the requirements of the engineering specification,and it was in the state of understability.Combined with the numerical analysis results,experts'on-site analysis opinions and the mechanism of slope reinforcement measures,three kinds of reinforcement and management programs are determined,Program 1 is"Circular anti-slip piles+anchors+intercepting and draining",Program 2 is"Square anti-slip piles+Circular anti-slip piles+Anchors+intercepting and draining",and Program 3 is"Square anti-slip piles+Circular anti-slip piles+Intercepting and draining".Based on the finite element numerical model to analyze the stress field,displacement field and slope stability coefficient changes of the rock and soil body,anti-slip piles and anchors,the stability coefficients of natural working conditions of the slope corresponding to the three reinforcement schemes were calculated to be 1.39,1.28,and 1.18,which were 32.4%higher than those before reinforcement,and the stability coefficients of the natural working conditions were calculated to be 1.39,1.28,and 1.18,which were 32.4%higher than those before reinforcement.Before the reinforcement,the stability coefficients of the natural working condition of the slope were 1.39,1.28 and 1.18,respectively,which were 32.4%,21.9%and 12.4%higher than those before the reinforcement;after comprehensively comparing the reinforcement measures of the three kinds of reinforcement schemes and the changes in the stress and displacement of the slope,as well as their reinforcement effects and economic levels,Scheme 1 was comprehensively determined as the final reinforcement scheme.关键词
边坡稳定性/抗滑桩/锚杆/截排水/滑坡加固Key words
slope stability/anti-slip piles/anchors/intercepting and draining/landslide reinforcement分类
交通工程引用本文复制引用
张帮鑫,彭东明,谭玲,黄子洋,龙春宇,李红卫..福建漳州某高速公路滑坡数值分析及加固治理研究[J].钻探工程,2024,51(4):117-124,8.基金项目
国家重点研发计划项目"进藏通道突发地质气象灾害应急抢险监测救援技术及智能组件"(编号:2022YFC3002603) （编号:2022YFC3002603）
重庆市自然科学基金面上项目"基于土体强度分区各向异性及渗流耦合的边坡稳定性研究"(编号:CSTB2023NSCQ-MSX0878) （编号:CSTB2023NSCQ-MSX0878）
新疆维吾尔自治区重大科技专项/重点研发任务专项项目"新疆公路边坡地质灾害空-天-地识别、监测与防控技术研究"(编号:2022B03033-2) （编号:2022B03033-2）
