地铁上盖建筑物下的岩土工程与数值化分析  

Geotechnical Engineering and Numerical Analysis of a Building Over the Subway Structure

作　　者：高陶 GAO Tao(CIGIS(China)Co.Ltd.,Beijing 100000)

机构地区：[1]建设综合勘察研究设计院有限公司,北京100000

出　　处：《土工基础》2024年第4期702-705,共4页Soil Engineering and Foundation

摘　　要：以深圳蔡屋围基坑工程为典型案例,深刻揭示了在地铁隧道上方进行基坑支护与土方开挖的复杂性与挑战性。由于该项目上穿地铁隧道,将面临着一系列技术难题和安全风险。为此,采用数值化分析手段,以便精准预测开挖时地铁隧道结构的应力和变形状态,确保工程安全可控。在施工中严格遵循既定方案,并辅以严密的监测措施,旨在最大限度地减轻对周边环境和地铁轨道的潜在影响。最终,成功实现了基坑的安全开挖,确保了地铁运行和周边建筑的安全。蔡屋围基坑工程的成功实施,验证了本技术方案和施工工艺的可行性,可为类似工程项目提供经验借鉴。The Shenzhen Caiwuwei Excavation Support Project serves as a prototypical case that profoundly underscores the intricacies and challenges associated with the excavation support and the earthwork excavation in the proximity to subway tunnels.Given its strategic location overlying a subway tunnel,the project posed numerous technical challenges and safety concerns that required meticulous planning and execution.To overcome these obstacles,a comprehensive approach,leveraging advanced numerical analysis techniques to precisely forecast the stress and deformation states of the subway tunnel structure during the excavation process are implemented.These measures ensured that any potential impacts on the tunnel’s integrity and the operational safety were minimized,thereby guaranteeing the safety and controllability of the entire project.During the construction phase,a strictly adherence to the predefined plan was used,while continuously monitoring and adjusting the approach to ensure the optimal performance.The rigorous monitoring measures,including real-time data acquisition and analysis,to detect any potential deviations or issues promptly are implemented so that the corrective actions can be used swiftly and minimizing any adverse impacts on the project’s progress and safety.The successful implementation of the Caiwuwei Excavation Support Project not only validates the feasibility of our technical solutions and construction techniques but also establishes a new benchmark for similar engineering projects worldwide.It demonstrates the author’s capability in overcoming the unique challenges posed by the excavation over the subway tunnels and achieving harmonious coexistence between engineering safety and urban development.Moreover,the project offers invaluable insights into the design and execution of the future excavation support systems.It serves as a precious resource for the engineers and planners,providing practical guidance and lessons learned that can be applied to analogous.

关 键 词：地铁隧道上盖 基坑支护 数值化分析 

分 类 号：TU473[建筑科学—结构工程]