多交叉界面城市地下道路的设计与施工要点

Design and Construction Essentials of Urban Underground Roads in Multi-cross Interface

项目隧道从城市综合体群穿越,与多个既有项目衔接,通过统筹规划,与多个项目组合设计,充分利用建筑地下空间,并通过地库专用道连接地块与地下车库,能够发挥城市地下道路的综合交通功能。并对多交叉界面城市地下道路的设计施工重难点进行总结,调整基坑之间的位置,协调基坑开挖和拆撑时序,最终确保了施工的安全,并提出优化建议。

The tunnel in this case passes through several urban complexes,and links up with multiple existing projects.By means of overall planning and the combinational design of multiple projects,the underground space of buildings is fully utilized.It is to play the integrated traffic function of urban underground road by the basement lane to connect the land and underground parking garage.The essentials and difficulties of design and construction of urban underground roads in the multi-cross interface are summarized.The position between the foundation pits is adjusted.The timing sequence of excavation,removal and support of foundation pit is coordinated.Finally,the safety of construction is ensured and the optimization proposal is put forward.