Large-area slope concrete hidden-rail slip form structure and construction method

Abstract

The invention relates to a large-area slope concrete hidden-rail slip form structure. The structure comprises a slope top support pillar, vertical support columns, top connecting cross beams, bottom connecting cross beams, slip rails, combined side forms and pull forms. The vertical support columns are longitudinally and transversely arranged on an original slope at equal intervals, the top connecting cross beams and the bottom connecting cross beams are arranged at upper and lower ends of the vertical support columns respectively, and rebar positioning tooth plates are arranged on top surfaces of connecting beams; bracket plates are symmetrically arranged at the top of the rail support columns in the slope direction, rail pads are arranged on the bracket plates, and the slip rails are erected on the bracket plates; the combined side forms are mounted on two sides of the slope, and slip rails are also arranged in the combined side forms. The structure has the benefits as follows: an inner form body of a slip form system is divided into cavities uniformly at equal intervals, adjustable sand partition boards are arranged in the cavities to form limiting counterweight frames, and bagsbetween partition boards are filled with sand to realize area ballasting; flat plate vibrating tampers and vibrating leveling beams are arranged on lower panels of the slip forms, and the slope concrete pouring quality is further improved.

Description

technical field [0001] The invention relates to a slope concrete sliding form structure, in particular to a large-area slope concrete concealed rail sliding form structure and a construction method. Background technique [0002] At present, the continuous pouring of concrete on long slopes often adopts slipform construction. Since the actual construction process of traditional track-type slipform is relatively cumbersome, and additional sliding tracks are required, trackless slipform is often used. [0003] The traditional trackless sliding form generally uses wooden formwork tracks on both sides or poured concrete to support, guide and control the pouring thickness of the concrete panel. It is difficult to ensure the stability and construction safety of the entire sliding formwork system during actual construction operations. In addition, it is difficult to properly solve a series of problems such as the buoyancy of concrete, the separation of aggregates during the process ...

AI Technical Summary

Problems solved by technology

[0003] The traditional trackless sliding form generally uses wooden formwork tracks on both sides or poured concrete to support, guide and control the pouring thickness of the concrete panel. It is difficult to ensure the stability and construction safety of the entire sliding formwork system during actual construction operations. In addition, it is difficult to properly solve a series of problems such as the buoyancy of concrete, the separation of aggregates during the process of concrete siloing, and the minimization of cracks in the panel, and it is also difficult to ensure that the slope concrete is poured in one time. The concrete pouring operation is obviously not enough to rely on the wooden formwork rails on both sides or the poured concrete to support it. The lower panel of the drag form is difficult to keep flat due to factors such as wide span and self-weight, and the stability of the entire draw form system during the construction process is also relatively low. weak

Concealed rail sliding form technology exists in the existing water conservancy engineering methods, but the stability of the concealed rail system is insufficient, and it increases the difficulty of surface steel reinforcement construction. Therefore, further research and innovation are still needed for concrete slipform construction on large-area slopes.

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