临地铁基坑工程施工周期优化策略及实践效果

Optimization strategy of the construction period for foundation pit projects adjacent to metro and its practical effects

随着城市建设的快速发展,地铁在城市交通中的重要性日益突显。然而,临近地铁线路的基坑施工对地铁运营和周边环境带来显著的影响和挑战。如何在确保施工安全和质量的前提下,减少对地铁运营和周边环境的影响成为一个亟待解决的问题。文章通过系统性地借鉴相关研究成果和苏州市狮山广场地下空间基坑施工的实际案例,提出优化临近地铁基坑施工周期的方案,其中包括分期优化合并、分段开挖、预留核心土等措施,旨在缩短施工周期并降低施工对地铁运营和周边环境的影响。此外,详细探讨各项优化措施的实施过程和效果评估,并总结出一套适用于临近地铁基坑施工的优化方案。这一方案的提出不仅可为类似工程提供可行的解决方案,也可为城市地铁建设和运营的发展提供有力支持。

With the rapid development of urban construction,the importance of metros in urban transportation has become increasingly prominent.However,the construction of foundation pits adjacent to metro lines poses significant impacts and challenges to the operation of metro and the surrounding environment.Finding a solution to minimize the impact on metro operations and the surrounding environment while ensuring construction safety and quality has become an urgent issue.This article systematically draws on relevant research findings and the practical case of the underground foundation pit construction at Suzhou Shishan plaza to propose a scheme for optimizing the construction period of foundation pits adjacent to metro.The proposed measures include phased optimization and merging,segmented excavation and reserving core soil,aiming to shorten the construction period and reduce the impact of construction on metro operation and the surrounding environment.Additionally,this article also discusses the implementation process and effect evaluation of each optimization measure in detail,summarizing one set of optimization scheme suitable for foundation pit construction adjacent to metro.The proposal of this scheme not only provides feasible solutions for similar projects,but also offers strong reinforcement for the development of construction and operation of urban metro.