High elastic die cushion type composite dam

Abstract

The invention belongs to the technical field of hydroelectric and hydraulic engineering hydraulic structures, and particularly provides a high elastic die cushion type composite dam. The composite dam comprises a concrete face plate, a cushion layer area, a transition area, an upstream major stone pile area and a downstream minor stone pile area, wherein the concrete face plate, the cushion layer area, the transition area, the upstream major stone pile area and the downstream minor stone pile area are sequentially arranged from an upstream region to a downstream region; a high toe wall area is arranged at the bottom of the concrete face plate, the bottom of the cushion layer area and the bottom of the transition area; a lower compression area is arranged at the bottom of the upstream major stone pile area and the bottom of the downstream minor stone pile area; the lower compression area is arranged at the downstream position of the high toe wall area and below the crest level of the high toe wall area. The high toe wall area and the lower compression area are arranged, so that transformation and stress of a dam body and the concrete face plate are reduced, the standards of stone pile dams with 200 m level face plates are reached, and the technology for stone pile dams with 300 m level face plates is feasible, economical and safe.

Description

technical field [0001] The invention belongs to the technical field of hydraulic structures of hydropower and water conservancy projects, and in particular relates to a high elastic modulus cushion type composite dam. Background technique [0002] With the implementation of the hydropower strategy, a large number of high dams have been built, are under construction or are to be built in the southwest and northwest regions rich in hydropower resources. Earth-rock dam is the most common dam type in dam construction today, and it is also the fastest-growing dam type, accounting for more than 95% of the total number of dams built. There are more than 29,000 earth-rockfill dams with a dam height of more than 15m in the world, among which there are more than 15,000 in my country, mainly including homogeneous earth dams, core wall dams and concrete face rockfill dams. [0003] Reinforced concrete face rockfill dam is a new type of dam developed in the late 1970s. In practice, it h...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical feasibility problems such as deformation, face deflection and stress of 300m super high face rockfill dam in the prior art

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