Assembly type subway station arc-shaped cushion layer pouring precision control support

By designing the prefabricated subway station arc cushion casting accuracy control bracket, the combination of threaded steel bars, positioning nuts and scrap steel heads is used to solve the problem of high difficulty and high flatness requirements for arc cushion construction, achieving accurate control of elevation and reducing construction costs.

CN222632246UActive Publication Date: 2025-03-18CHINA CONSTR FIFTH ENG DIV CORP LTD +1
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Patent Information

Application Number
CN202421353317.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-03-18
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

After the construction of the arc-shaped cushion layer, there are often potholes and water storage, which is difficult to construct and has high flatness and arc requirements.

Method used

A prefabricated subway station arc cushion casting accuracy control bracket is designed, including excavated base surface, designed base surface, threaded steel bars, positioning nuts and waste steel bar heads. The threaded steel bars and positioning nuts are fixed by welding, and the waste steel bar heads are welded and fixed with the positioning nuts, and the elevation is controlled to achieve precise control of the elevation of the arc bottom plate cushion.

Benefits of technology

The precise control of the arc-shaped cushion elevation is achieved, which reduces construction costs, simplifies the construction process, avoids difficulties in subsequent construction, and improves the flatness and aesthetics of the cushion.

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Abstract

The utility model relates to the technical field of assembly type subway station arc-shaped cushion layer pouring, and discloses an assembly type subway station arc-shaped cushion layer pouring precision control support which comprises an excavation base face, a design base face is arranged on the upper side of the excavation base face, the excavation base face is of an arc-shaped structure, and a plurality of waste steel bar heads are fixed to the bottom of the excavation base face. The bottom ends of the waste reinforcing steel bar heads are inserted and fixed below the excavation base plane, the top ends of the waste reinforcing steel bar heads are connected with the same twisted steel bar through positioning nuts, and the twisted steel bar and the designed base plane are located on the same layer height. Compared with the prior art, the technology has the advantages that the technology is low in cost and easy to manufacture, the elevation of the arc-shaped cushion layer can be controlled to be expanded from a point to a surface, one welder can complete the welding operation of the 18-meter arc-shaped positioning steel bar of the assembly section within half an hour, the control cost of the arc-shaped cushion layer can be saved, and the difficulty of subsequent construction can be avoided; and high-quality construction of the cushion layer can be realized, so that the cushion layer is more attractive.
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