周公宅水库双曲拱坝混凝土温度控制及防裂措施探讨

Discussion on concrete temperature control and crack control of Zhougongzhai double-curvature arch dam

周公宅水库混凝土双曲拱坝坝高125.5 m,温控要求较高,在施工过程中,结合工程所在地的气候特点及工程实际,采取有针对性的温控防裂措施,未发生危害性裂缝,表面浅层裂缝也较少,效果明显,对施工中的温控经验和教训进行总结,供参考借鉴。

The Zhougongzhai concrete double -curvature arch dam is 125.5m high, with high requirement on temperature control. During construction, based on local climate features, temperature control measures were adopted to prevent cracks, which have obvious resuits, i. e. , no detrimental cracks, only few surface cracks. The paper summarizes the experience and lessons of temperature control during construction for reference.