冷却管在钢筋混凝土沉管隧道施工中的应用

Application of Cooling Pipe in Construction of Reinforcement Concrete Sinking\|pipe Tunnel

通过在外侧墙内布置冷却水管以降低新浇混凝土的水化热 ,减小外侧墙与底板之间的温差 ,从而控制裂缝的产生与发展。介绍了上海市外环线越江沉管隧道施工中所采用的冷却方法 。

Engineers placed cooling pipes on the interior side of exterior walls to reduce hydration heat of fresh\|pouring concrete,and this method decreased the temperature difference between exterior walls and the bottom board and controlled generation and development of cracks.In this article,authors introduce the cooling method used in construction of Shanghai exterior\|circle cross\|river sinking\|pipe tunnel and evaluate its effect.