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降低土坝工程造价的有效途径之一是,最大限度地利用水工建筑物基坑的有效挖方,其中包括广泛采用低强度岩石,如粉砂岩、泥质岩、页岩、泥灰岩等。在国外水工建设中应用低强度岩石筑坝的经验已刊登在《水工建设》1982年第2期。从1970年开始,全苏给水、排水、水工建筑物及工程水文地质科研所对低强度材料性能进行了研究,以论证用其可以筑坝。所研究的这些材料的特性适应于修建以下三座大坝:伊佐比利年斯克大坝,坝高80米,
One of the effective ways to reduce the cost of earth dam construction is to make full use of the effective excavation of the foundation pit of hydraulic structures, including the widespread use of low-intensity rocks such as siltstone, mudstone, shale, marl and so on. The experience of applying low-strength rock dam construction in foreign hydraulic construction has been published in “Hydraulic Construction” 1982, No. 2. Since 1970, the research on the properties of low-strength materials has been carried out by the All-China Water Supply, Drainage, Hydraulic Structures and Engineering Hydrogeology Institute to demonstrate that they can be dammed. The properties of these materials studied are tailored to the construction of three dams: the Izobolimansk dam, which is 80 meters high,