摘要
文章以深圳市核心区域穗莞深城际宝安站深基坑工程为研究对象,基于有限元软件建立三维数值模型,模拟分析基坑开挖过程中的变形和稳定性。结果表明,基坑变形主要集中在10~20 m深度,水平位移先增大后减小,与土体不均匀沉降现象密切相关。地下连续墙结合内支撑的支护形式有效控制了基坑变形,但在支护结构较弱的区域,地表沉降量显著增大。
This paper takes the deep foundation pit engineering at Bao'an Station of Guangzhou-Dongguan-Shenzhen Intercity Railway in the core area of Shenzhen as the research object.Based on the finite element software,a three-dimensional numerical model is built to simulate and analyze the deformation and stability of the foundation pit during excavation process.The research results show that the deformation of foundation pit is mainly concentrated at depths of 10-20 m,and the horizontal displacement increases first and then decreases,which is closely related to the uneven soil settlement.The support form of underground continuous wall combined with internal bracket effectively controls the deformation of the foundation pit,but in the area where the support structure is weak,the surface settlement increases significantly.
作者
肖军
XIAO Jun(POWERCHINA Southern Construction Investment Co.,Ltd.,Shenzhen 518000,Guangdong,China)
出处
《工程技术研究》
2025年第16期147-149,共3页
Engineering and Technological Research
关键词
深基坑
城际轨道
变形分析
稳定性评估
支护结构
deep foundation pit
intercity rail
deformation analysis
stability assessment
support structure
