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为了确定混凝土坝内有无裂缝,通常采用仪器监测裂缝出现的情况,用水力试验法确定裂缝深度。尽管埋设仪器很多,但仍然不能将所有的裂缝都检查出来。对于表面能见到的裂缝,一般需钻许多不同深度的孔,方能压水定出裂缝深度。苏联萨扬舒申斯克水电站工地研究并采用了一种新的评价大坝整体性的方法。在浇筑混凝土过程中,在坝内平行坝面水平埋设许多节聚丁烯多孔花管,其与可能出现裂缝的坝面的距离不等。花管要用软管与冷却管
In order to determine the presence or absence of cracks in concrete dams, instruments are usually used to monitor the occurrence of cracks, and the hydraulic test method is used to determine the depth of cracks. Despite the large number of instruments buried, but still can not check out all the cracks. For the surface to see the cracks, the general need to drill many holes of different depths, water pressure can be set to crack depth. The Soviet Union, at the site of the Janja Shushenskaya hydropower plant, has studied and adopted a new method for evaluating the integrity of the dam. In pouring concrete, many sections of polybutene perforated pipe are buried horizontally in the dam parallel to the dam surface, and the distance from the dam surface where cracks may occur is not equal. Pipe to use hose and cooling pipe