Arch dam supporting girder template structure and construction method

A formwork and arch dam technology, which is applied to the formwork structure of the arched gate supporting beam behind the dam, the formwork structure of the arch dam supporting beam and the construction field, can solve the problem of formwork removal of a single external support truss, etc., and can solve the formwork removal of the downstream face. Problems, safe, high-quality and efficient construction, and the effect of quick installation

Active Publication Date: 2018-11-06
SINOHYDRO BUREAU 8 CO LTD
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Problems solved by technology

[0005] The present invention aims to provide a formwork structure and construction method for supporting girders of arch dams. By setting a combined prefabricated formwork on the downstream side of the supporting girders, it can solve the problem of removing the formwork of the existing single outer support truss, and realize safe, high-quality and efficient construction of the supporting girders.

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  • Arch dam supporting girder template structure and construction method
  • Arch dam supporting girder template structure and construction method
  • Arch dam supporting girder template structure and construction method

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

[0032] An arch dam supporting girder formwork structure, such as figure 1 and 2 As shown, it includes two parts, the upstream face template and the downstream face template. The upstream face formwork is composed of support truss one 3, support truss two 5, loose steel formwork 6 and shaped wood formwork 7. Among them, the supporting truss-3 is used as the load-bearing support of the upstream surface formwork, and at the same time provides a constructi...

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Abstract

The invention discloses an arch dam supporting girder template structure and a construction method. The arch dam supporting girder template structure comprises an upstream surface template and a downstream surface template, wherein the upstream surface template is arranged on the upstream side of the downstream surface template; the upstream surface template comprises first supporting trusses, second supporting trusses, steel templates and shaping wood templates; the first supporting trusses are used as bearing supports of a construction platform and the upstream surface template, and the bottom of the first support trusses are buried in the concrete of the gate piers at the two sides; the downstream surface template comprises embedded parts, third supporting trusses and combined prefabricated templates; and the embedded parts are buried in the concrete of the gate piers at the two sides, and the bottom of the third supporting trusses are fixedly connected to the embedded parts. According to the template structure and the construction method, the problem that the existing single outer support truss is difficult in disassembling is solved, and safe and high-efficiency construction of the supporting girder is realized.

Description

technical field [0001] The invention relates to an arch dam supporting girder formwork structure and a construction method, and relates to the technical field of civil engineering, in particular to a formwork structure for arch dam back arch gates supporting girders such as bottom holes, deep holes or middle holes. Background technique [0002] Concrete arch dams are generally built in relatively narrow and steep river valleys, lacking the conditions for arranging riverside spillways, and the dam body is often used for flood discharge. [0003] At present, the most common flood discharge method of arch dams is mainly to open surface holes, middle holes, deep holes or bottom holes in the dam body. In order to meet the requirements of flood control, arc gates are often installed behind the dam to adjust the water flow, and supporting girders are arranged to bear the water thrust of the arc gates. Because the supporting girder needs to bear a large water thrust, especially in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/12
CPCE02B7/12Y02E10/20
Inventor 杨承志于永军杨静韩可林曾凡杜罗艳
Owner SINOHYDRO BUREAU 8 CO LTD
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