近年来碾压混凝土坝发展迅速。虽然高粉煤灰掺量使得碾压混凝土水化热较低,但由于采用通仓连续碾压的施工方式,使得碾压混凝土高坝的温度裂缝问题依然十分突出。本文通过分析碾压混凝土温控防裂的特点和裂缝的分类及原因,针对性的研究总结了温控防裂的措施,为碾压混凝土坝的设计施工和防裂提供参考。 RCC dams have developed rapidly in recent years. Although the high content of fly ash makes the hydration heat of roller compacted concrete lower, the temperature cracks of RCC dam are still outstanding due to the continuous roller compaction construction. In this paper, by analyzing the characteristics of RCC crack control and the classification and causes of cracks, the measures of temperature control and cracking prevention are summarized and analyzed, which provide references for the design and construction and crack prevention of RCC dam.