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在坝工界,温度控制一直是常态混凝土的关键技术之一。本工程设计为常态混凝土双曲拱坝,拱坝一般比较单薄,坝内温度受外界气温和水温的变化比较敏感,温度应力影响显著。同时,工程地处新疆北部边陲,具有气候严寒干燥、极端温差大、寒潮频繁、昼夜温差大、年平均气温低的特点,对常态混凝土施工极为不利,如何克服上述不利条件,都是必须面对的。本文从温度控制入手,总结了一些经验,以资参考。
In dam industry, temperature control has been one of the key technologies of normal concrete. The project is designed as a normal concrete double-curvature arch dam, arch dam is generally thin, dam temperature by the outside temperature and water temperature changes are more sensitive to temperature stress significant impact. At the same time, the project is located in the northern border of Xinjiang, with the characteristics of cold and dry weather, large temperature extremes, frequent cold spell, large temperature difference between day and night and low annual average temperature, which are extremely unfavorable to the normal concrete construction and how to overcome the above unfavorable conditions. of. This article starts with temperature control, sums up some experiences, with reference.