桩锚结构在市政既有高边坡改建加固中的应用研究  

Research on the Application of Pile Anchor Structure in the Reconstruction and Reinforcement of Existing High Slopes in Municipal Engineering

作　　者：孙林锋[1] SUN Linfeng(Fuzhou Investigation and Surveying Institute,Fuzhou 350108)

机构地区：[1]福州市勘测院有限公司,福建福州350108

出　　处：《福建建筑》2024年第8期45-49,共5页Fujian Architecture & Construction

摘　　要：结合福州市某道路既有高边坡改建加固的工程实例,分析既有边坡改建加固的不利因素,探讨桩锚结构在既有高边坡改建加固中的运用。结合数值模拟方法,采用强度折减法,对边坡施工各阶段的稳定性进行分析,预测周边建(构)筑物变形,并根据计算结果,提出成桩工序优化等措施。监测及实际施工效果显示,桩锚结构在此工程中得到了良好的应用效果。This article combines the engineering example of the reconstruction and reinforcement of an existing high slope on a certain road in Fuzhou,analyzes the disadvantage of the existing slope reconstruction,and explores the application of pile anchor structure in the reconstruction and reinforcement of the existing high slope.Combining numerical simulation methods,the strength reduction method is used to analyze the stability of slope construction at each stage,the article predict the deformation of surrounding buildings and propose measures such as optimizing the pile forming process based on the FEM results.The monitoring and actual construction results show that FEM can consider the stress path of the slope soil from undisturbed support to reconstructed excavation support,the numerical results of FEM are in good agreement with the actual monitoring values,and the pile anchor structure has achieved good application results in this project.

关 键 词：边坡改建 桩锚结构 数值模拟 稳定性分析 

分 类 号：TU3[建筑科学—结构工程]