市政技术2024，Vol.42Issue(1)：17-24,8.DOI:10.19922/j.1009-7767.2024.01.017
高边坡既有锚索拆除及拓宽重建稳定性分析
Stability Analysis of Existing Anchor Cable Removal and Widening Reconstruction of High Slope
摘要
Abstract
In order to study the impact of the removal of existing anchor cable of high slope and construction of new one on slope stability in the highway widening project,a numerical model was established to analyze the impact based on Xiamen Xiang'an Airport Expressway project.The optimal timing of removing anchor cables and con-structing new one was proposed.Research has shown that the excavation and unloading of the soil around the anchor cable causes displacement of the retaining wall towards the slope with the distance between the excavation bottom of the newly built slope and the pre-stress cable getting closer and closer,which cause the release of the prestressed part and the gradual relaxation of the axial force in the anchoring section;According to changes in the displacement of the retaining wall,the timing of anchor cable removal will be determined.The research can provide reference for similar high slope widening projects.关键词
高边坡/扩建/锚索拆除/新建锚索/边坡稳定性/数值分析Key words
high slope/extension/removal of anchor cable/construction of new anchor cable/slope stability/nu-merical analysis分类
交通运输引用本文复制引用
钱师雄..高边坡既有锚索拆除及拓宽重建稳定性分析[J].市政技术,2024,42(1):17-24,8.基金项目
福建省自然科学基金计划项目(2022J011252) （2022J011252）
厦门路桥建设集团有限公司科技攻关项目 （）
