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Rockfill dam using seamless faceplate and construction method thereof

A technology of rockfill dams and panels, applied in the direction of dams, barrages, barrages, etc., can solve the problems of easy cracks and panel damage of the panels, and achieve the effects of ample construction time, increased life expectancy, and low shrinkage

Active Publication Date: 2021-01-26
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: The present invention provides a rockfill dam with seamless panels and its construction method, which solves the problem that existing rockfill dam panels are prone to cracks and cause panel damage

Method used

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  • Rockfill dam using seamless faceplate and construction method thereof
  • Rockfill dam using seamless faceplate and construction method thereof
  • Rockfill dam using seamless faceplate and construction method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] Such as Figure 1-4 As shown, the rockfill dam with seamless panels includes the main rockfill area 10, the downstream rockfill area 13, the transition area 7, the cushion area 8, and the seamless panel 18. The seamless panel 18 is made of cement, fine sand, secondary fly ash, polyvinyl alcohol fiber, waterproof emulsion and water reducer, wherein each cubic meter of seamless panel contains 550-560kg of cement, 460-550kg of fine sand, 650~690kg secondary fly ash, 24~28kg polyvinyl alcohol fiber, 10~12kg waterproof emulsion and 20~24kg water reducer. The manufacturing process is: first add cement, fly ash, and sand to the mixer for 2-4 minutes, then add water and water reducer and stir for 4-6 minutes, add polyvinyl alcohol fiber again, stir for 4-6 minutes, and finally add waterproof emulsion , stir for 2-4 minutes. Because the smaller the maximum particle size of...

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Abstract

The invention discloses a rockfill dam using a seamless panel, comprising a seamless panel made of cement, fine sand, secondary fly ash, polyvinyl alcohol fiber, waterproof emulsion and water reducer . The panel of the present invention contains fibers, the panel has low shrinkage, high toughness and good ductility, the panel is not easy to crack and fall off, and the crack width after cracking develops slowly, and the development of cracks is controllable. Fly ash is added to the panel material , reduce the amount of cement and the heat of hydration in the concrete curing process, effectively inhibit the development of cracks, and ensure the performance and bearing capacity of the face plate. The workload and cost of construction are reduced, the amount of reinforcement in the face is reduced, the anti-seepage ability of the face is increased, the face is not easy to leak, the life of the face is improved, and the seismic level of the face rockfill dam is improved.

Description

technical field [0001] The invention relates to a rockfill dam and its construction, in particular to a rockfill dam using a seamless face plate and a construction method thereof. Background technique [0002] Concrete face rockfill dam is mainly composed of main rockfill area, downstream rockfill area, transition area, cushion area, face plate and other components. It is a common dam type. It mainly relies on face plate to retain water and prevent seepage. One of the key parts of the rockfill dam. During the long-term service of the concrete face rockfill dam face, the uneven settlement of the rockfill body and the erosion of the external environment will cause local stress concentration of the face face structure, carbonization of the surface concrete, and frost damage, which can lead to cracking, spalling, and partial collapse of the face face If the face plate is damaged, it will cause leakage of the dam body, corrosion of the steel reinforcement of the face face, and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00E02B7/06
CPCC04B28/00E02B7/06C04B14/06C04B18/08C04B16/0641C04B2103/302C04B2103/65
Inventor 苏怀智韩彰
Owner HOHAI UNIV
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