摘要
随着老城区地下空间开发力度的加大,如何有效保护基坑周边古建筑的安全是深基坑支护工程亟须考虑的问题。以某邻近既有古建筑的深基坑工程为例,通过数值模拟与现场监测相结合的方式,对深基坑开挖全过程进行有限元模拟分析,结果表明周边密布古建筑的基坑工程采用咬合灌注桩及1道钢筋混凝土内支撑进行支护可有效控制基坑支护结构变形,并有效保护周边古建筑的安全。
With the increasing development of underground space in the old urban area,how to effectively protect the safety of ancient buildings around the foundation pit is an urgent problem to be considered in the deep excavation engineering.Taking a deep excavation project adjacent to an existing ancient building as the background,through the combination of numerical simulation and on-site monitoring,the whole process of deep foundation pit excavation is simulated and analyzed by finite element method.The results show that the excavation project with dense ancient buildings around can effectively control the deformation of the support structure and effectively protect the safety of the surrounding buildings by using the secant pile and strutted retaining structure.
作者
刘鹭
LIU Lu(Fujian Academy of Building Research Co.,Ltd.,350025,Fuzhou,China;Fujian Provincial Key Laboratory of Green Building Technology,350025,Fuzhou,China)
出处
《建筑技术》
2023年第11期1312-1316,共5页
Architecture Technology
基金
福厦泉国家自主创新示范区协同创新平台项目(3502ZCQXT2022002)
福建省对外合作科技计划项目(202210014)
福建省建设科技项目(2022-K-143)。
关键词
深基坑支护
古建筑
变形控制
deep foundation pit support
ancient buildings
deformation control
