Slab culvert cast-in-situ roof truss type slip form system and construction method

Abstract

The invention relates to a slab culvert cast-in-situ roof truss type slip form system. The slab culvert cast-in-situ roof truss type slip form system comprises a cushion course, a culvert bottom plate, culvert side plates, a culvert top plate, foundation treatment piles, truss uprights, a sliding adhesion vertical rail, an integral counter-force prepressing frame, an integral jacking cross beam and a top plate bottom die; the cushion course and the culvert bottom plate are arranged on the foundation treatment piles; a counter-force prepressing embedded piece and a bottom plate track embedded piece are embedded in the culvert bottom plate; a frame format type counter-force plate and an expanded counter-force disc are connected with the counter-force prepressing embedded piece; a channel steel ear plate is arranged at the upper part of the bottom plate track embedded piece; the upper part of the channel steel ear plate is connected with a pulley; an integral jacking cross beam is arranged at the upper part of the pulley; truss uprights are arranged at the upper part of the integral jacking cross beam; and the sliding adhesion vertical rails are arranged on the truss uprights. The slab culvert cast-in-situ roof truss type slip form system has the beneficial effects that the slab culvert top plate adopts a truss type slip form system, a unit truss is assembled outside, a top reinforcement cage is integrally molded and hoisted on site, and a sliding type operation platform is placed on the truss uprights and is combined and fixed by using overhanging channel steels and rotary supporting steel plates, and therefore, the construction speed can be increased.

Description

technical field [0001] The invention relates to a cover culvert cast-in-place roof formwork system and a construction method, in particular to a cover culvert cast-in-place roof truss-type sliding form system and a construction method. Background technique [0002] Culvert projects are an important node related to construction projects in highway and railway construction, and culvert projects account for the main components of highways and railways in terms of quantity and project cost. Especially in areas with complex terrain conditions such as mountainous areas, the cost of culvert engineering can account for more than 30% of the total project investment. Therefore, ensuring the quality and progress of culvert engineering construction is a key link related to smooth traffic. Compared with bridge engineering, the structural form of culverts is relatively simple, but it is also divided into various types according to its structural form and embedding method. Although its s...

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Problems solved by technology

Although its structure is simple and construction is not difficult, it plays a very important role in the project. If its construction quality cannot be guaranteed, it will have a great impact on the stability of the subgrade, and eventually cause the road to collapse and affect the slab culvert. Lower use function

[0003] In view of this, in order to improve the deficiencies in the construction of traditional slab culverts, the long construction period, the stability of the roadbed and other issues

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