Core-wall rockfill dam

A technology for rockfill dams and core walls, applied in dams, barrages, water conservancy projects, etc., can solve the problems of lack of standards for asphalt concrete performance testing methods, high requirements for asphalt raw materials, and difficulty in crack repair, achieving good volume stability and avoiding problems. Hydraulic splitting, the effect of strong adaptability to deformation

Pending Publication Date: 2020-07-10
CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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  • Abstract
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  • Claims
  • Application Information

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.

Method used

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  • Core-wall rockfill dam

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Embodiment Construction

[0017] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0018] like figure 1 As shown in the figure, the core rockfill dam of the present invention includes an upstream dry masonry slope protection 13, an upstream rockfill area 4, an upstream transition layer, a core wall, a downstream transition layer, a downstream rockfill area 5, an upstream wave barrier 11, and a downstream barrier. The wave wall 12, the curtain grouting 10, and the grouting corridor 14 are characterized in that the upstream transition layer is the structure of the upstream lead wire gabion 1 and the upstream geomembrane 6, and the downstream transition layer is the structure of the downstream lead wire gabion 2 and the downstream geomembrane 7, and the upstream The lead wire gabion 1 and the downstream lead wire gabion 2 are closed with upstream geomembrane 6 and downstream geomembrane 7 respectively on the side close to t...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/06E02B3/16E02D31/02
CPCE02B3/16E02B7/06E02D31/02
Inventor 王立成田新星黄正海刘武军张智彬刘晶王帅田杏丽左凤霞苏子琪
Owner CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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