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Design and Research on the Cemented Sand-gravel Dam for the Shoukoubu Reservoir

WANG Jin-ying;  
The adopted dam type in the Shoukoubu Reservoir is a cemetend sand-gravel dam. It is the first time to use this new dam type in permanent hydraulic project in our country. In combination with the local material situation and by comparison with the similar project at home and abroad, the cross section of dam, material zoning of dam body,foundation surface setting and spillway structures layout are studies, and the reasonable design scheme is obtained. This reservoir's maximal dam height is 61.6 m. Its trapezoidal cross section has the same dam-slope ratio 1:0.6 for the upstream and downstream surface. The cross section is divided in 6 different regions according to the material characters.The main core material of dam is the cemented sand-gravel and the impermeable concrete layer and protective concrete layer are set on the dam upstream and downstream. The width of dam foundation is wider than a concrete gravity dam.The spillway structures are set on or in the dam body.
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