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Concrete faced rock-fill dam seepage-proofing structure

A technology for concrete face and rockfill dams, which is applied in dams, barrages, water conservancy projects, etc. It can solve the problems of affecting the construction period, greatly affecting the durability of the structure, and reducing the use function, so as to speed up the construction progress and simplify the division of dam types , the effect of shortening the cycle

Pending Publication Date: 2019-07-23
CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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AI Technical Summary

Problems solved by technology

The appearance of cracks in the face plate not only reduces its use function, but also has a great impact on the structural durability of the dam itself
In order to control cracks, before the face concrete construction, the dam body is generally set for a pre-settlement stage of 4 to 6 months, which affects the construction period to a certain extent

Method used

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  • Concrete faced rock-fill dam seepage-proofing structure
  • Concrete faced rock-fill dam seepage-proofing structure

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0018] Such as figure 1 As shown, the anti-seepage structure of concrete face rockfill dam of the present invention comprises concrete toe slab 1, upstream gravel cover weight 10, upstream bedding 11, downstream gravel cover weight 12, curtain grouting 13, upstream wave wall 14, downstream The retaining wall 15 is characterized in that, on the upstream dam surface, from the dam bottom to 1 / 2 to 2 / 3 times the dam height, a traditional concrete panel composed of transition material 6, cushion area 5, and concrete panel 2 is used in sequence; From above the traditional concrete face to the dam crest, a high-strength reinforced geomembrane anti-seepage type is adopted. The upper part of the high-strength reinforced geomembrane 8 is provided with a concrete protection plate 7, and the lower part is provided with a geomembrane cushion 9. The lower end...

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Abstract

The invention discloses a concrete faced rock-fill dam seepage-proofing structure. The concrete faced rock-fill dam seepage-proofing structure includes a high-strength reinforced geomembrane, a concrete face plate, curtain grouting, rock ballast cover weight, a transition material, a cushion area, a main rockfill area, a secondary rockfill area and the like. An upper half part of a traditional concrete face plate is changed into a high-strength reinforced polyethylene geomembrane structure, and watertightness of the geomembrane is utilized to play a seepage-proofing role. The secondary rockfill area adopts a rockfill material with large deformation modulus, and the geomembrane can adapt to the deformation of a subsequent secondary rockfill area. The concrete faced rock-fill dam seepage-proofing structure is simple in shape, high in construction speed, low in requirements for building stones in the secondary rockfill area and convenient to construct.

Description

technical field [0001] The invention relates to a concrete face rockfill dam, in particular to an anti-seepage structure of a concrete face rockfill dam. Background technique [0002] Concrete face rockfill dam is a common local material dam type. It is made of rockfill materials layered and rolled to form a dam body, which acts as a support, and a reinforced concrete panel is installed upstream of it as an anti-seepage body. [0003] A typical concrete face rockfill dam consists of upstream cover weight, face plate, cushion area, transition area, main rockfill area, secondary rockfill area, downstream slope protection and other parts. The concrete face rockfill dam has been favored and valued by the dam industry because of its good safety, strong adaptability, and fast construction speed, and has become a competitive dam type. [0004] In the design and construction of concrete face rockfill dams, the control of deformation and cracks has always been the core issue of eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/16E02B7/06
CPCE02B3/16E02B7/06
Inventor 王立成田新星马妹英李端阳翟政刘晶孙亮科宋慧刘喜斌付茂鹏
Owner CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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