Urban road flood diversion channel prefabricated box culvert low friction controllable sliding installation method

By setting up a steel ball rolling bearing system and controlled traction on the slide rail, the problems of high frictional resistance, low precision and high safety risks in the installation of precast box culverts in urban road construction have been solved, and efficient and safe box culvert placement has been achieved.

CN122446641APending Publication Date: 2026-07-24成都环境工程建设有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
成都环境工程建设有限公司
Filing Date
2026-04-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In urban road construction, the installation of precast box culverts is subject to site constraints. Traditional hoisting methods suffer from problems such as axis misalignment, large elevation errors, low construction efficiency, and high safety risks. In particular, when the width of the foundation pit is limited, the sliding method has high frictional resistance and is difficult to achieve precise installation.

Method used

A low-friction rolling bearing system is adopted, which uses steel balls rolling on the slide rails and combines directional guidance and controlled traction to achieve smooth and high-precision positioning of precast box culverts. This includes steps such as slide rail system layout, steel ball rolling bearing, traction system control and attitude correction.

Benefits of technology

It significantly reduces frictional resistance, improves installation accuracy and construction safety, enhances construction efficiency, is suitable for complex and restricted sites, and enables high-precision positioning and safe sliding of box culverts.

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Abstract

The application discloses a low-friction controllable sliding installation method for a prefabricated box culvert of a city road flood diversion channel, and the method steps are as follows, S1, foundation pit excavation and foundation treatment, S2, sliding rail system layout, S3, steel ball rolling bearing system, S4, box culvert bottom sliding structure, S5, box culvert hoisting and positioning preparation, S6, traction sliding construction control, S7, sliding process posture control, S8, accurate positioning and fine adjustment, and S9, subsequent structure construction, compared with the prior art, the steel ball rolling bearing system is arranged between the sliding rail and the bottom of the prefabricated box culvert, sliding friction between concrete and concrete in the traditional box culvert sliding construction is converted into rolling friction, the overall friction coefficient is reduced to 0.02-0.03, the equipment energy consumption and the equipment configuration requirement are greatly reduced, through a PID speed control algorithm and a posture dynamic correction algorithm, the installation precision and quality are greatly improved, the construction safety is significantly enhanced, and the method is suitable for complex and limited construction environments.
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