A prefabricated box culvert and rapid positioning construction method

Abstract

The invention discloses a prefabricated box culvert and a rapid positioning construction method. The box culvert is prefabricated in a factory and transported to a construction site; a trench with a rectangular cross section is excavated underground on the construction site, and steel plates are arranged on both side walls of the trench; A bottom plate is set on the bottom of the groove, and H-shaped steel is arranged longitudinally along the two sides of the bottom plate to form a longitudinal track, and a plurality of steel wheels are evenly arranged on the upper surface of the H-shaped steel; the upper part of the groove is provided with an inlet, Place the box culverts on the longitudinal track from the loading entrance, and transport the box culverts to the construction site one by one by the tractor; paint epoxy resin glue on the contact surface of each box culvert, and paste the boxes with epoxy resin glue when they are in contact. The box culverts are fixed as a whole through the longitudinal prestressed tendons passing through the reserved holes on each box culvert; the steel plates are removed and the soil is backfilled to complete the construction. Compared with the current jacking method, the construction method of the present invention can be constructed quickly so as to shorten the construction period, is suitable for areas with a large traffic volume, and can reduce labor costs.

Description

technical field [0001] The invention relates to a construction method for municipal construction projects, in particular to a prefabricated box culvert and a rapid positioning construction method. Background technique [0002] Box culverts refer to culverts built with reinforced concrete box-shaped pipe joints. Box culverts consist of one or more square or rectangular sections, generally made of reinforced concrete or masonry, but reinforced concrete is widely used, when the span is less than 4m, box culverts are used. For pipe culverts, reinforced concrete box culverts are a Cheap alternatives, piers, upper and lower slabs are all poured in the same way. [0003] At present, box culverts in municipal engineering are excavated on site, erected formwork, bound steel bars, poured concrete, and cured to form. After reaching a certain strength, the jacking method is used to connect each section into a whole. The construction process is relatively large, and the on-site construc...

AI Technical Summary

Problems solved by technology

[0003] At present, box culverts in municipal engineering are excavated on site, erected formwork, bound steel bars, poured concrete, and cured to form. After reaching a certain strength, the jacking method is used to connect each section into a whole. The construction process is relatively large, and the on-site construction is not only It has an impact on the surrounding environment, and is not conducive to transportation, with a long construction period and high labor costs

The overall durability and anti-seismic performance of the segment formed by the jacking method cannot meet the construction requirements very well. Once a problem occurs, the maintenance is time-consuming and laborious

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