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Construction desk frame for large-cross-section hole type spillway

A spillway and large-section technology is applied in the field of large-section lining concrete construction benches, which can solve problems such as inability to meet, and achieve the effects of ensuring flatness, reducing operating strength, and facilitating correction.

Inactive Publication Date: 2012-05-30
CHINA RAILWAY NO 5 ENG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the devices currently in use obviously cannot meet the above requirements.

Method used

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  • Construction desk frame for large-cross-section hole type spillway
  • Construction desk frame for large-cross-section hole type spillway
  • Construction desk frame for large-cross-section hole type spillway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Embodiment of the present invention: when the lining concrete of the large-section hydraulic cavern is carried out in two steps, the first step is to complete the lining of the side wall concrete of the whole cavern with a cycle of 12 m; the second step is also the same With a cycle of 12 m, the concrete lining of the top arch of the entire cavern is completed. That is, the entire cavern is fully lined.

[0036] The stand main body 1 is assembled by rods 1-1 and connecting plates 1-2.

[0037] Side wall formwork 2, using A3 steel plate with δ=6mm as the panel, the longitudinal reinforcement rib is welded with [14a channel steel, and the vertical reinforcement rib is A3 with [14a channel steel and δ=5mm, h=12.5cm, w=5cm Steel plate welding. The complete set of formwork consists of 24 pieces, of which 20 pieces are 6.1m×3m, and 4 pieces are 6.1m×2.5m. The edge of each formwork is connected as a whole with 4 [14a channel steel circles. The templates are connected as a ...

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Abstract

The invention discloses a construction desk frame for a large-cross-section hole type spillway, and the construction desk frame comprises a desk frame main body (1). Side wall templates (2) are arranged on two sides of the desk frame main body (1) and are mutually connected through a first adjustable push rod (4); chain hoists (3) are arranged at the top of the two sides of the desk frame main body (1); a material distributing device (6) is arranged on the upper surface of the desk frame main body (1); a crown desk frame (7) is arranged at the upper part of the desk frame main body (1); a crown template (8) is arranged on the upper surface of the crown desk frame (7); a crown moving device (9) is mounted between the crown desk frame (7) and the desk frame main body (1); and a sliding waking device (5) is further arranged at the lower part of the desk frame main body (1). By using the construction desk frame for the large-cross-section hole type spillway, the construction of a super-large-cross-section hydraulic grotto is carried out; the operation is flexible; the interference to other working procedures is deceased; the in-position movement is simple and easy; and the working strength is decreased. On the aspect of lining quality, furthermore, a purpose-made large-sized steel template is adopted; the rigidity and the smoothness of the template are guaranteed; construction joints are reduced; and the guarantee of meeting a hydraulic concrete lining high standard is provided.

Description

technical field [0001] The invention relates to a tunnel cavity lining concrete construction platform, in particular to a large-section lining concrete construction platform. Background technique [0002] In recent years, with the development of tunnels and underground engineering, tunnels have gradually developed towards long tunnels and large cross-sections. Especially for hydraulic tunnels, there are also problems of thick lining and large slopes. However, the current caverns Concrete lining is also mainly a steel formwork lining trolley construction method of manually assembling small steel formwork lining and section steel combination, which has the problems of long construction period, difficult quality control and great safety risks during the walking process. Therefore, for the lining construction of super-large section caverns (especially for hydraulic tunnel construction), in addition to the mechanized construction method that combines the lining formwork trolley w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
Inventor 邓凌罗康勇彭伟平
Owner CHINA RAILWAY NO 5 ENG GRP
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