大体积混凝土非金属水管冷却的降温计算

Temperature drop calculation of mass concrete cooled by non-metal pipeline

近年来，在实际工程中已采用塑料管进行人工冷却，既节省钢材．还减少了水管接头，便于施工。但目前的水管冷却计算方法只适用于金属水管，因此，通过研究，提出了坝体一期冷却和二期冷却的计算方法，同时还给出空间问题的近似计算的简化计算方法，并给出计算实例。

In recent years, plastic pipe has been used to cool the mass concrete in some projects, which saves steel material, reduces pipe adapter and is convenient to construction. But the calculation methods of water pipe cooling aresuitable to that of metal pipe. Thus, this paper gives the calculation methods in the first-stage and second-stagecooling of the concrete dam, and also gives the approximate calculation and simplified calculation. An calculation example is given in the paper.