This paper takes the cemented sand and gravel dam (CSGD) in Shoukoubao reservoir as the prototype to introduce in detail the\nsimilarity principle of model test and describe the selection steps of materials for CSG model. It has developed similar materials for\nCSGD model by mixing coarse sand, barite powder, gypsum powder, cement, and iron powder so as to provide reference for\nCSGD model test in the future. The dam model test has studied the stress distribution and displacement deformation of the dam\nduring construction and normal operation, in order to provide experimental support for the study of failure mechanism of the\nCSGD and facilitate the design and construction of dams of this kind.
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