Trench reverse formwork construction device

Abstract

The invention discloses a construction device for a reverse channel formwork. The construction device comprises vertical templates for forming a channel template frame, wherein horizontal templates are mounted between the bottom ends of the vertical templates; a vertical rebar frame is mounted under the channel template frame; an inner strut is mounted in the channel template frame; lateral rebar frames are respectively mounted on the two sides of the channel template frame; at least two sets of locking devices for positioning and locking the vertical templates are mounted between each of the lateral rebar frames and the inner strut. During a use process, the templates at different altitudes are positioned at the required altitudes by the vertical rebar frame, the lateral rebar frames and the inner strut; after the templates are completely supported and arranged, the once backfill construction is performed on a backfill region; the vertical rebar frame and the lateral rebar frames are remained in a backfill material, so that the backfill intensity is enhanced; after the backfill construction is finished, the inner strut, the vertical templates and the horizontal templates are removed. The construction device for the reverse channel formwork has a simple and reasonable structure; the inner strut can be reused; the once backfill is adopted, so that the backfill times is reduced, the backfill time is saved and the construction efficiency is increased.

Description

technical field [0001] The invention relates to the field of building technology, in particular to a construction device used in the construction of large-area replacement foundations, ditches, pits and other structures in backfilling. Background technique [0002] When the project backfill adopts alternative concrete, the backfill height generally needs to be determined according to the bottom elevation of foundations, ditches, pits and other structures, and multiple backfills are generally required, such as Figure 4 As shown, leveling of the base cushion is carried out first, the formwork of the first layer with the lowest support position is installed, and then the first backfilling construction is carried out, such as Figure 5 As shown, make the backfill height reach the position of the second-layer formwork, level and support the second-layer formwork, and then carry out the second backfilling construction, such as Figure 6 As shown, make the backfill height reach th...

AI Technical Summary

Problems solved by technology

[0004] 1. There are many times of backfilling, which requires multiple backfilling and pouring, and the workload is large;

[0005] 2. The workload of formwork support and construction joint cleaning is large, and the investment of human and financial resources is relatively large;

[0006] 3. The trenches, foundations, pits, etc. also need to be constructed along with the replacement backfill progress, and the construction speed is slow

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