大体积混凝土由于其自身水泥水化热较高,其自身散热效果满足不了设计要求,因此必须采用预埋在坝体内部的冷却水管进行通水冷却,以带走混凝土内部水化热温升。葛洲坝锦屏项目部尝试用江水代替冷却水或部分代替冷却水,将大大简化冷却系统布置的难题,降低施工成本,提高企业效益。目前在每年11月至翌年3月采用常温水代替冷却水,进行中间冷却效果较好。 Due to its high hydration heat of cement itself, mass concrete can not meet the design requirements because of its own heat-dissipating effect. Therefore, the cooling water pipe embedded in the dam body must be used for water cooling to take away the temperature rise of hydration heat within the concrete. Gezhouba Jinping project department try to use instead of cooling water or partial replacement of cooling water, will greatly simplify the cooling system layout problems, reduce construction costs and improve business efficiency. Currently in November each year to March the following year to replace the cooling water with water at room temperature, the intermediate cooling effect is better.