Construction method for synchronous formwork supporting and concrete pouring of bottom plate and top plate of cast-in-place pipe gallery

Abstract

The invention discloses a construction method for synchronous formwork supporting and concrete pouring of a bottom plate and a top plate of a cast-in-place pipe gallery, and relates to the technical field of concrete pouring. According to the method, the supporting strength of the concrete bottom plate is improved through a vertical supporting device, a formwork supporting system is erected on the bottom plate, the top plate and the side walls, meanwhile, concrete pouring and curing are carried out on the bottom plate, the top plate and the side walls, the formwork supporting system is disassembled after curing is completed, a vertical rod and a horizontal supporting rod on the upper surface of the bottom plate concrete are partially cut off, and simultaneous pouring operation is completed. According to the method, the vertical supporting device is easy to manufacture and convenient to install; the number of procedures is small, and the efficiency is high; the construction period of the supporting system is short, and the installation speed is high; the loss is small, and the construction cost is low; the supporting system does not need to be welded with bottom plate steel bars, and the application range is wide; the stress balance of the side walls is good, and the stability of the supporting frame is good; the supporting effect is good, and potential safety hazards are avoided; and the bottom plate, the top plate and the side walls are synchronously implemented, no construction joint exists, the integrity is good, the anti-seepage effect is good, and the construction period is greatly shortened.

Description

technical field [0001] The invention relates to the technical field of concrete pouring, in particular to a construction method for synchronous formwork pouring of a bottom plate and a top plate of a cast-in-situ pipe gallery. Background technique [0002] In the existing technology, the construction of the general cast-in-place pipe gallery is divided into pouring the bottom slab concrete first, then binding the side wall and roof reinforcement and supporting the side wall and roof formwork, and simultaneously pouring the side wall and roof concrete, or pouring the bottom slab concrete first. Finally, tie the side wall reinforcement and support the side wall formwork and then pour the side wall concrete, and finally support the roof formwork and tie the roof reinforcement and then pour the roof concrete. However, sometimes the construction period has to be shortened due to tight construction schedules or weather reasons, and the upper and lower concrete slabs are poured at ...

AI Technical Summary

Problems solved by technology

The above-mentioned method of vertically supporting the formwork with the reinforcement grid on the bottom plate has limitations: (1) The lifting and installation of the steel plate is inconvenient, and the fixing is difficult; (2) The plane leveling of the steel plate is difficult to control and the precision is low; (3) There are many implementation processes, The construction period is long; (4) The investment of steel support / steel plate is large and the cost is high; (5) The support effect is poor and the safety hazard is large

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