深基坑混凝土支撑的跳拆施工

Sequenced Dismantling Construction of Concrete Supportfor Deep Foundation Pits

针对深基坑支撑拆除过程中基坑变形难以控制的难题,对支撑的关键技术进行了总结,提出了深基坑混凝土支撑跳拆施工方法。实践表明,支撑跳拆技术具有良好的变形控制效果,为今后地下层高较高导致无楼板进行换撑的深基坑地下结构施工提供了有效借鉴。

As to the dificulty in controlling the deformation of deep foundation pit support during the dismantling process,the key technologies of support are summarized,and a sequenced dismantling technology of concrete support for deep foundation pits is proposed.The practice shows that the sequenced dismantling technology of concrete support has good deformation control effects.It provides an effective reference for the construction of deep foundation pit underground structures in the future,where there is no floor slab for support replacement due to the high underground floor height.