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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

Active Publication Date: 2021-08-13
山东水总有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that if the cooling pipe is used to cool the interior of the roller compacted concrete, when the rolling machine rolls the concrete, the cooling pipe is likely to break under the pressure of the rolling machine, and the cooling water will Leakage from cooling pipes

Method used

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  • Roller compacted concrete dam structure and construction method
  • Roller compacted concrete dam structure and construction method
  • Roller compacted concrete dam structure and construction method

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Embodiment 1

[0051] The embodiment of the application discloses a roller compacted concrete dam structure and a construction method. First, the embodiment of the present application discloses a roller compacted concrete dam structure, referring to figure 1 and figure 2 , the roller compacted concrete dam structure includes a roller compacted concrete part 100 and a normal concrete part 200 laid on both sides of the roller compacted concrete part 100, the roller compacted concrete part 100 includes a multi-layer roller compacted concrete layer 110, and the roller compacted concrete layer from bottom to top 110 The width gradually narrows. The roller compacted concrete is provided with a cooling mechanism 300 for cooling the roller compacted concrete. The cooling mechanism 300 includes a multi-section cooling pipe 310, and the multi-section cooling pipe 310 is evenly distributed in the length direction of the roller compacted concrete dam. When cooling the roller compacted concrete layer ...

Embodiment 2

[0072] The embodiment of the application discloses a roller compacted concrete dam structure and a construction method. First, the embodiment of the present application discloses a roller compacted concrete dam structure, referring to Figure 5 The difference between the embodiment of the present application and the embodiment 1 is that a metal hose 320 is used for flexible connection between adjacent cooling pipes 310 at both ends. One end of the metal hose 320 is fastened to the water outlet end of one section of the cooling pipe 310 , and the other end of the metal hose 320 is fastened to the water inlet end of an adjacent section of the cooling pipe 310 .

[0073] Under the communication effect of the metal hose 320, the cooling pipes 310 in the roller compacted concrete in the same layer are connected together. When cooling the roller compacted concrete, it is only necessary to fill the water inlet end of the cooling pipe 310 at the end, and then all the cooling pipes 31...

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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.

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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Application Information

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IPC IPC(8): E02B7/02E02B3/16E02D15/00
CPCE02B7/02E02B3/16E02D15/00Y02E10/20
Inventor 杜贞义郭法文蔡国森夏金泉
Owner 山东水总有限公司
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