城轨项目基坑施工对综合管廊盾构井的影响分析
Analysis on the Influence of Foundation Pit Construction of Urban Rail Project on Utility Tunnel Shield Work Shaft
李波 1王谭1
作者信息
摘要
本文以广州市天河智慧城科韵路段综合管廊K4井为研究对象,进行临近城轨项目基坑施工对综合管廊盾构井的影响分析.利用岩土工程专用软件Midas/GTS进行有限元模拟,通过对关键施工步骤的数据统计,分析了临近基坑开挖对K4井地层位移、地连墙位移、内支撑轴力的变化及其影响规律,并提出了合理的建议和措施,保证了基坑的安全施工.
Abstract
Taking the utility tunnel K4 shield work shaft of Keyun section of Guangzhou Tianhe Smart City as the research object,the influence of foundation pit construction of adjacent urban rail project on the utility tun-nel shield work shaft was analyzed.By using Midas/GTS,a special software for geotechnical engineering,finite element simulation was carried out.Through the data statistics of key construction steps,the changes and influ-ence rules of the excavation of the adjacent foundation pit on the formation displacement,ground connection wall displacement and internal support axial force of K4 shield work shaft were analyzed.Reasonable suggestions and measures were put forward to ensure the safe construction of foundation pit.
关键词
综合管廊/城轨/临近基坑/有限元模拟Key words
Utility tunnel/Urban rail/Two adjacent foundation pits/FEM引用本文复制引用
出版年
2024
NETL
NSTL
万方数据