抽水蓄能电站压力钢管顶部混凝土脱空的处理措施——以呼和浩特抽水蓄能电站为例

Treatment of the Cavity Problem in Concrete above the Steel Penstock in Hohhot Pumped Storage Power Station

分析了呼和浩特抽水蓄能电站1号引水系统中平段压力钢管混凝土回填浇筑后产生脱空现象的原因,针对施工中存在的问题,提出了解决措施,总结了压力钢管顶部混凝土脱空浇筑所遵循的基本原则和实施要点,为呼和浩特抽水蓄能电站输水系统的安全运行奠定了基础。

In the construction of are found in the backfill concrete the No. 1 above the water conveyance system in Hohhot Pumped Storage Power Station, cavities horizontal segment of the penstock. Possible reasons of these cavities are analyzed. Prevention and treatment measures are then proposed, which ensure the safe operation of the water conveyance system