超长超宽超深水位下混凝土结构跳仓法施工技术

Construction Technology About Sequence Construction Methods of Super-long,Super-wide and Super-deep Water Level Concrete

北京蓝色港湾工程基础底板为超长、超宽、超深混凝土地下结构,为避免因温度收缩引起开裂,基础底板、地下室外墙、地下室顶板采用跳仓法施工,并取消膨胀剂,使混凝土应力有效释放,达到防止开裂的效果。

The foundation slab of Blue Harbor Engineering is super-long, super-wide and super-deep water level concrete underground structures. Sequence construction methods are adopted in foundation slab, basement exterior wall and basement roof in order to avoid cracking caused by temperature contraction. Besides, the expansive agent is canceled so as to release concrete stress in result of preventing cracks.