Roller compacted concrete dam structure and construction method

A technology of roller compacted concrete and construction method, applied in infrastructure engineering, marine engineering, water conservancy engineering and other directions, can solve problems such as cooling water leakage and cooling pipe fracture, and achieve the effect of improving support force, reducing difficulty and improving filling rate
CN113250148AActive Publication Date: 2021-08-13山东水总有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
山东水总有限公司
Publication Date
2021-08-13

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Abstract

The invention relates to a roller compacted concrete dam structure and a construction method, and relates to the technical field of hydraulic engineering. The roller compacted concrete dam structure comprises a roller compacted concrete part and normal state concrete parts laid on the two sides of the roller compacted concrete part; the roller compacted concrete part comprises a plurality of roller compacted concrete layers; each roller compacted concrete layer is provided with a cooling mechanism; and each cooling mechanism comprises a plurality of sections of cooling pipes evenly distributed in the length direction of the corresponding roller compacted concrete layer, and every two adjacent sections of cooling pipes are not connected or flexibly connected. The construction method comprises the steps of cooling pipe laying, discharging, flattening, rolling compaction, water passing, normal state concrete pouring and the like. According to the roller compacted concrete dam structure and the construction method, the probability that the roller compacted concrete layers are damaged can be reduced, the probability that roller compacted concrete is eroded by cooling water is reduced, the solidification efficiency of the roller compacted concrete layers is improved, and accordingly the strength of a roller compacted concrete dam is improved.
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Description

technical field

[0001] The application relates to the field of hydraulic engineering, in particular to a roller compacted concrete dam structure and a construction method. Background technique

[0002] Compared with normal concrete dams, roller compacted concrete dams have the following main features: ① The main body of the dam is built with ultra-dry hard concrete with a slump close to zero. ② Use dump trucks, belt conveyors, vacuum chutes or pipelines to transport clinker to the dam. ③ There is no longitudinal joint during pouring. Some use a vibrating joint cutting machine to create transverse joints, some use precast concrete formwork to form continuous joints or intermittently form induced joints, and some even do full-section pouring without transverse joints. ④Use bulldozers to close the warehouse, vibrating rollers for compaction, etc. ⑤ The temperature control measures are simplified. Therefore, the construction speed of the roller compacted concrete dam is much ...

Claims

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