Cast-in-place drainage channel structure of free-form construction top plate and construction method

Abstract

The invention discloses a cast-in-place drainage channel structure of a free-form construction top plate. The cast-in-place drainage channel structure comprises a cushion layer, wherein a bottom plate is poured on the cushion layer; a left side wall and a right side wall are poured on the left side and the right side of the bottom plate separately; a left connecting rebar and a right connecting rebar are buried into the tops of the left side wall and the right side wall; a top plate member is arranged between the tops of the left side wall and the right side wall; and a top plate wrapping body is poured on the tops of the left side wall and the right side wall and on the top plate member. The invention further discloses a construction method of the cast-in-place drainage channel structure of the free-form construction top plate. The method comprises the steps of prefabricating the top plate member in batches; casting the cushion layer, the bottom plate, the left side wall and the right side wall on site; installing the top plate member; and casting the top plate wrapping body. The sealing property of a drainage channel can be ensured, the problem that a bottom form and a support used for casting the top plate in a traditional construction method are difficult to remove is solved, the construction efficiency is relatively high, and the proficiency requirement on filling operation of a worker is lower than that in a traditional ''cover plate method prefabricating method''.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction structure and a construction method of a drainage channel. Background technique [0002] Modern urban diversion drainage systems are divided into sewage drainage systems and rainwater drainage systems, both of which are pressure-free systems. Sewage drainage systems are usually composed of pipes, and rainwater drainage systems are usually composed of pipes or drains. [0003] The second paragraph of Article 9.1.1 of the national standard "Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering" 50268-2008 stipulates that the tightness test of the pipeline should be carried out for the non-pressure pipeline. However, there is no clear test requirement for the tightness of drains. With the frequent occurrence of extreme weather, many cities in China are frequently flooded. When flooding occurs, the rainwater system is over...

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Problems solved by technology

[0005] However, compared with the traditional "prefabricated cover slab method" construction drainage process, the integral pouring drainage process is relatively troublesome. The integral pouring drainage process is generally The bottom formwork for pouring the top slab must be supported, and the bottom formwork must be supported. After the construction, the support and bottom formwork need to be removed. For small drainage channels, it is very troublesome to remove the bottom formwork and support after the top slab is poured can't even do

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