井筒式超深基坑混凝土内支撑拆除施工技术  

CONSTRUCTION TECHNOLOGY FOR REMOVAL OF INTERNAL CONCRETE SUPPORT OF SH AFT TYPE ULTRA-DEEP FOUNDATION PIT

作　　者：孙聪聪 SUN Cong-cong(Shanghai Baoye Group Co.,Ltd.,200441,Shanghai,China)

机构地区：[1]上海宝冶集团有限公司,上海200441

出　　处：《建筑技术》2024年第13期1599-1603,共5页Architecture Technology

摘　　要：随着地下空间的广泛应用,基坑向着“大”和“深”的方向发展,深基坑钢筋混凝土内支撑支护设计得到了广泛应用,且多处于城市中心的老城区及闹市区,周围建筑密集,施工现场综合环境复杂。以濮阳市老城区中医院内井筒式地下立体停车库超深基坑混凝土内支撑拆除为例,介绍了井筒式超深基坑混凝土内支撑采用盘扣式架结合绳锯切割拆除的施工技术。实践证明,通过采用该技术,在确保深基坑安全的同时,满足了工期要求,该技术成熟可行,取得了良好的效果。With the extensive application of underground space,foundation pits are becoming larger and deeper,and internal reinforced concrete supports are widely applied in deep foundation pits,mostly in old urban areas and downtown areas at city centers,where there are dense buildings and complicated construction site conditions.Taking the removal of the internal concrete support of the ultra-deep foundation pit of the shaft type underground stereo garage in the old urban area of Puyang City as an example,the construction technology integrating the ring lock scaffold and wire sawing is introduced for the removal of internal concrete supports of shaft type deep foundation pits.Practice has proved that this technology can ensure both the safety of deep foundation pits and compliance with the construction period requirements.This mature and feasible technology has good effects.

关 键 词：地下空间 井筒式 超深基坑 混凝土内支撑 

分 类 号：TU94[建筑科学—建筑技术科学]