上海某泵房基坑“两墙合一”地下连续墙设计

详细阐述了上海市杨浦区民星南排水系统工程中主体泵站地下连续墙基坑设计,介绍了异形平面地下连续墙布置、钢筋混凝土支护结构与泵房主体结构一体化设计,采用启明星软件对地下连续墙的内力进行了计算分析、对深基坑的变形进行了验算、对深基坑施工对周边环境的影响进行了分析。理论计算分析和施工监测结果表明,设计的基坑安全可靠,施工对周边影响得到了有效的控制,为深基坑地下连续墙的设计和施工提供参考和实践经验。

Design of "Two-Walls-in-One" Underground Diaphragm Wall for Foundation Pit of a Pumping House in Shanghai

This paper elaborates the design of the foundation pit for the underground diaphragm wall of a main pumping house in Shanghai City Yangpu District Minxingnan Drainage Project,introduces the layout of special-shaped plane underground diaphragm wall,and the integrated design of reinforced concrete supporting and main pump house structure,and uses the Daystar software to calculate and analyze the internal force of underground diaphragm wall,check and calculate the deformation of deep foundation pit,and analyze the influence of deep foundation pit construction on the surrounding environment.The theoretical calculation analysis and the construction monitoring results show that the design of foundation pit is safe and reliable,and the construction influence on the surrounding environment has been effectively controlled,which provide the reference and practical experience for the design and construction of underground diaphragm wall of deep foundation pit.