复杂环境条件下深基坑变形控制研究

Study on Deformation Control of Deep Foundation Excavation Under Complex Environment

邻近既有地铁等重要构筑物的深基坑设计和施工时,除要考虑基坑自身的安全,更要保证既有结构的安全。以北京某深基坑为研究背景,论文分析了该基坑工程的技术难点,从基坑支护结构选型、地下水处理方式以及施工顺序等方面,提出了相应的变形控制措施,以确保基坑自身以及既有地铁的安全。

In the design and construction of deep foundation pit adjacent to the existing subway and other important structures, not only the safety of the foundation pit itself should be considered, but also the safety of the existing structure should be ensured. Taking a deep foundation excavation in Beijing as the research background, the technical difficulties of the foundation excavation engineering are analyzed, and the corresponding deformation control measures are proposed from the aspects of foundation excavation support structure selection, groundwater treatment and construction sequence, in order to ensure the safety of the foundation excavation itself and the existing subway.