超长大体积混凝土基础底板无缝施工技术

摘要

The 3 m thickest edge of the base of the civil air defense of an office building in Shunyi District, Beijing. Sedimentation analysis and balancing techniques are used to eliminate settling and poststretching. The expansion and reinforcement belt technology is mixed with three expansion source expansion agents to achieve seamless construction. The large-volume concrete floor has zero leakage and no cracks, and the energy saving benefits are obvious.%北京顺义一办公楼人防基础底板最厚边3 m.为取消沉降和伸缩后浇带,采用沉降分析和平衡技术.膨胀加强带工艺掺三膨胀源膨胀剂等技术实现无缝施工,底板大体积混凝土零渗漏、无裂缝,节能效益明显.