Method for quickly assembling assembled corrugated culvert

Abstract

The invention discloses a method for quickly assembling an assembled corrugated culvert. The method comprises the following steps: a. assembling the corrugated pipe unit pieces into single pipes; b. longitudinally assembling the single pipes into the culvert; c. coating waterproofing agent on the joint of the culvert; d. coating waterproofing agent on the outside of the culvert; e. inspecting and accepting the assembled culvert. The method has the following beneficial effects: the corrugated pipe unit pieces in the step a are placed on assembling equipment to be assembled, with the axes being horizontal, and when the corrugated pipe unit pieces are assembled on the assembling equipment, the operators stand to operate, so the operation labor intensity is low and the efficiency is high; in the step b, the roller type prong forklift is adopted to transport the single pipes, so the equipment utilization ratio is high and the single pipes are fast and convenient to transport, meanwhile, dislocation adjustment is carried out on the roller type prong forklift, so the adjustment speed is high and the electroplated anticorrosive coating of the corrugated pipe can not be damaged, and bolted connection is carried out on the lifting working platform of the forklift and the crawling ladders at the two sides, so the operation is safe and the efficiency is high; and the waterproofing agent and a preservative are coated on the culvert, so the quality of the culvert can be ensured, and finally the culvert is inspected and accepted, so the quality of the culvertcan be further ensured.

Description

technical field [0001] The invention relates to a culvert construction method, in particular to an assembly method of an assembled culvert. Background technique [0002] my country has a vast territory. In order to meet the needs of infrastructure construction in alpine regions, a new technology of "assembled steel bellows culverts" has been developed in recent years and has been gradually promoted in alpine regions. The diameter of the assembled steel corrugated pipe culvert ranges from 2.0 to 12.0m. The assembly process mainly includes: a. First, the arc-shaped corrugated pipe units are assembled into circular pipe sections, and b. The circular pipe sections are assembled longitudinally to form a culvert. [0003] There are many shortcomings in the current assembly method of large-diameter bellows culverts. For example: ① When assembling the unit pieces into pipe joints, most of them adopt the horizontal assembly method on the ground. The weight of most of the pipe joint...

AI Technical Summary

Problems solved by technology

For example: ① When assembling the unit pieces into pipe joints, most of them adopt the horizontal assembly method on the ground. The weight of most of the pipe joints is about 1 ton. It needs to be erected by hoisting equipment. During the erection process, the surrounding pipe joints are often deformed, which affects the smooth vertical assembly of the culvert; ③The assembled pipe joints are transported to the vertical assembly site, and hoisting , short-distance transportation and other auxiliary equipment, due to the light weight of the pipe joint (about 1 ton), the utilization rate of the equipment is low and uneconomical; ④ When the pipe joint is assembled longitudinally, it is required to stagger the longitudinal joints according to a certain rule, and crowbars, jacks, etc. are required The tool realizes the pipe joint rotation, translation, alignment and other operations, which is labor intensive, the pipe joint is easy to deform, the anti-corrosion layer is easy to fall off, and the work efficiency is low; When reaching a height of more than 3m, labor intensity is high, work efficiency is low, and safety is not guaranteed; ⑥ high-strength bolts must be used for all connection points, and internal and external personnel must cooperate in the construction. Often outside personnel need to work on the top of the culvert pipe above 3m, and the operation is more dangerous. Fall accidents are prone to occur; ⑦ Scaffolding is required for construction on the top of the culvert, which may easily lead to stress concentration at the contact point between the scaffold and the corrugated pipe, local deformation and loss of the anti-corrosion layer; ⑧ After the longitudinal assembly is completed, the outer surface of the side of the culvert opposite to the ground is coated with an anti-corrosion layer Difficulty working

[0004] There is a need for an assembled bellows culvert assembly method to change the defects of the existing assembly methods such as high labor intensity, low work efficiency, dangerous operation, and easily damaged bellows

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