Core-wall rockfill dam

Abstract

The invention discloses a core-wall rockfill dam comprising gabions, self-compacting concrete, upstream geotextile, downstream geotextile, an upstream rockfill area, a downstream rockfill area, a copper sheet water stop, a concrete base, a grouting gallery and the like. The self-compacting concrete replaces a traditional clay core wall or bituminous concrete core wall. The gabions and the geotextile are used for replacing a traditional transition area. The gabions are utilized to achieve the functions of stabilizing and protecting the core wall. By means of the watertightness of the geomembrane, the seepage-proof function is achieved. According to the core-wall rockfill dam, the type is simple, dam body section partitioning is optimized, the construction speed is rapid, construction interference is little, and construction and later-period overhauling are convenient.

Description

technical field [0001] The invention relates to an earth-rockfill dam, in particular to a core rockfill dam. Background technique [0002] Earth-rock dam is the general term for earth dam, rockfill dam and mixed earth-rock dam. It is the earliest type of dam built by human beings. According to different construction methods, earth-rock dams can be divided into: rolling type earth-rockfill dams, throw-and-fill rockfill dams, directional blasting dams, hydraulic filling dams and water pouring earth dams, etc. Among them, the most widely used rolling type earth-rockfill dams are type. [0003] The core wall dam is a type of rolling earth-rock dam. Since the core wall is located in the middle of the dam body, the core wall and the dam body are required to rise substantially synchronously during construction, so the two interfere greatly with each other and affect the construction progress. In addition, the consolidation speed of the core material and the dam shell material is ...

AI Technical Summary

Problems solved by technology

However, asphalt concrete core wall dams have many disadvantages, such as high requirements for asphalt raw materials, high construction requirements, lack of standards for asphalt concrete performance test methods, and extremely difficult repairs once cracks occur.

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