埋石混凝土在沁源县永和水电站大坝设计施工中的应用

Application of Stone-embedding Concrete Technique in Designing and Constructing the Dam of Yonghe Hydroelectric Power Station

采用埋石混凝土修建的重力坝,在混凝土中埋入一定比例的块石,一方面减少混凝土用量,从而降低了成品混凝土的水化热,减少了大体积混凝土施工的温度控制措施,有效地减少了坝体的温度裂缝;另一方面可以节省工程投资。文中介绍了永和水电站坝体埋石混凝土的施工方法和施工质量控制。

Application of stone-embedding concrete technique means it is needed to add some stone into concrete according to certain proportion. Using this technique, on one hand, can reduce the use quantity of concrete, lead to lower the hydration heat of concrete, decrease temperature control measures in construction process of mass concrete, effectively lessen temperature cracks in dam body, and on other hand, can save the engineering investment. In the paper, the construction method of stone-embedding concrete in constructing the dam of the Yonghe Hydroelectric Power Station and its construction quality control measures are introduced.