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

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...

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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 15CM, but conventional concrete mixing and The limitation of vibration 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, this is the technical problem that needs to be solved at present

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