首页|深基坑施工对周边土体变形的影响分析

深基坑施工对周边土体变形的影响分析

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珠江三角洲有不良的地质情况与特殊岩土的特点,深基坑在开挖的过程中势必对地上结构、土体变形、城市交通设施造成一系列影响,故分析地下深基坑开挖施工时周边土体变形及其环境的动态变化,相应调整各项施工工序及施工参数,以确保工程安全、优质、快速.本文依托空港大道(白云五线-机场)工程,结合深基坑明挖施工现场监测结果,如基坑附近地表沉降、围护结构水平位移,结合明挖法施工过程建立有限元数值模型与实际监测数据对比从而有效地将施工控制在安全范围之内,并总结相关规律与对周边土体变形的影响因素,为同类型的地下工程施工提供参考和借鉴.
Analysis of the Influence of Deep Foundation Pit Construction on the Deformation of Surrounding Soil
The Pearl River Delta has adverse geological conditions and special geotechnical characteristics,and deep foundation pit excavation is bound to have a series of impacts on the ground structure,soil deformation,and urban traffic facilities.Therefore,the dynamic changes of surrounding soil deformation and environment during the excavation of deep underground foundation pit were analyzed,and various construction procedures and construction parameters were adjusted accordingly to ensure the safety,quality,and speed of the project.This article relies on the Airport Avenue(Baiyun Fifth Line Airport)project,combined with the monitoring results of the deep foundation pit open excavation construction site,such as surface settlement near the foundation pit and horizontal displace-ment of the retaining structure.Combining with the open excavation construction process,a finite element numerical model was established and compared with actual monitoring data to effectively control the construction within a safe range.Relevant laws and factors affecting the deformation of the surrounding soil were summarized,providing refer-ence and inspiration for the construction of similar underground projects.

Deep foundation pitFoundation pit supportOn site testingNumerical simulationImpact analysis

郭凯敏

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中铁十六局集团路桥工程有限公司

深基坑 基坑支护 现场检测 数值模拟 影响分析

2025

广东建材
广东省建筑材料研究院

广东建材

影响因子:0.681
ISSN:1009-4806
年,卷(期):2025.41(1)