Self-compaction enrockment concrete gravity dam structure and construction method thereof

A rockfill concrete and construction method technology, applied in gravity dams, foundation structure engineering, dams, etc., can solve the problems of large concrete pouring volume, achieve the effects of shortening the construction period, simplifying temperature control measures, and reducing costs

Pending Publication Date: 2020-03-17
贵州水务建设工程有限公司
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Problems solved by technology

[0002] Gravity dams are widely used in water conservancy and hydropower projects. The amount of concrete poured is large, and a large amount of heat of hydration will be generated at the same time. The general construction process is to use multi-stage batching. The maximum particle size of the aggregate can reach

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  • Self-compaction enrockment concrete gravity dam structure and construction method thereof
  • Self-compaction enrockment concrete gravity dam structure and construction method thereof

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Embodiment 1

[0016] Embodiment 1: as attached Figure 1~2 Shown, a kind of self-compacting rockfill concrete gravity dam structure, it comprises steel bar layer 2, rockfill material layer 1 and concrete material 3, and described rockfill material layer 1 is positioned at the middle of dam body and is arranged vertically, in rockfill material layer The two sides of 1 are arranged with vertically arranged steel bar layers 2, and the concrete material (3) covers the rockfill material layer 1 and the steel bar layer 2 inside.

[0017] Further, the reinforcing bar layer 2 includes horizontal and vertical reinforcing bars that are uniformly arranged.

[0018] Further, the rockfill particle size of the rockfill material layer 1 is 300-1000 mm, and the maximum particle size of the rockfill should not exceed 1 / 4 of the minimum side length of the dam structure section.

[0019] A construction method for a self-compacting rockfill concrete gravity dam structure, the steps of the method are: 1. clean...

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Abstract

The invention discloses a self-compaction enrockment concrete gravity dam structure and a construction method thereof. The self-compaction enrockment concrete gravity dam structure comprises a steel bar layer, an enrockment material layer and a concrete material. The enrockment material layer is located in the middle of a dam body and is vertically arranged. The vertically-arranged steel bar layeris arranged on the two side edges of the enrockment material layer. The concrete material wraps the enrockment material layer and the steel bar layer inside. The construction method comprises the first step of bin face cleaning, the second step of template installing and steel bar bundling, the third step of rock block stacking, the fourth step of high-self-compaction performance concrete mixing,the fifth step of concrete transportation, the sixth step of high-self-compaction performance concrete pouring and the seventh step of curing. By adoption of the enrockment concrete structure, the concrete pouring amount of the dam body can be greatly reduced, the construction cost is greatly reduced, and the construction efficiency is improved; and meanwhile, due to the heat dissipation functionof enrockment, the concrete hydration heat can be greatly reduced, and a very good field construction effect is achieved.

Description

technical field [0001] The invention relates to a concrete gravity dam, in particular to a self-compacting rockfill concrete gravity dam structure and a construction method thereof, belonging to the technical field of concrete dams. Background technique [0002] Gravity dams are widely used in water conservancy and hydropower projects. The amount of concrete poured is large, and a large amount of heat of hydration will be generated at the same time. The general construction process is to use multi-stage batching. The maximum particle size of the aggregate can reach 15CM, but conventional concrete mixing and The limitation of vibrating capacity is relatively difficult. How to improve the construction quality of the gravity dam, reduce the construction cost and improve the construction efficiency at the same time is a technical problem that needs to be solved at present. Contents of the invention [0003] The technical problem to be solved by the present invention is to prov...

Claims

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Application Information

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IPC IPC(8): E02B7/10E02D15/02
CPCE02B7/10E02D15/02
Inventor 刘国权陈刚易吉林
Owner 贵州水务建设工程有限公司
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