Replacement construction method for large-area backfilling of lightweight concrete in constructional engineering

Abstract

The invention relates to a replacement construction method for large-area backfilling of lightweight concrete in constructional engineering. The replacement construction method is used for replacing lightweight concrete needing to be backfilled to a height difference position of a structural slab, and a first top surface, a second top surface and a vertical surface connected with the first top surface and the second top surface are further formed at the height difference position of the structural slab. The replacement construction method comprises the following steps that a plurality of supporting wall bodies are constructed on the second top surface of the structural slab, and the constructed supporting wall bodies are arranged in a to-be-backfilled area at intervals; and a cover plate connected with the vertical surface is formed on the multiple supporting wall bodies in a pouring mode, the upper surface of the cover plate is flush with the first top surface, the to-be-backfilled area is covered with the cover plate, and therefore backfilling replacing lightweight concrete is achieved. The supporting wall bodies and the cast-in-place cover plate are used for replacing an existing method of backfilling light concrete, the bearing effect can be achieved, the building structure requirement is met, a large amount of backfilling concrete is saved, construction is easy and convenient, safety and reliability are achieved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the field of building construction engineering, in particular to an alternative construction method for large-area backfilling of lightweight concrete in construction engineering. Background technique [0002] In construction engineering, the design of building structures often cannot meet the requirements of building construction, and it is necessary to backfill fine stone or lightweight concrete to meet the requirements of building construction. For example, in the design of the height difference of the structural slab, the building construction requires that the height difference be set at a certain position, but in the design of the building structure, it may not be able to meet the setting position of the height difference due to the difficulty of formwork support or other construction specification requirements , so that there is a certain distance between the height difference of the constructed structural slab and its d...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art, to provide an alternative construction method for backfilling lightweight concrete in a large area in construction engineering, and to solve the problem that the existing method of backfilling with lightweight concrete not only increases the load on the bottom structure but also wastes concrete material problem

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