Intelligent control method for positioning and sinking of large bridge deep water prefabricated foundation

By combining "5G+BeiDou" or "5G+GPS" high-precision positioning technology with an intelligent control center, the problem of positioning and sinking deep-water prefabricated foundations for cross-sea super-large bridges under the coupled effects of wind, waves, and currents has been solved, achieving high-precision and safe construction results.

CN116254845BActive Publication Date: 2026-02-06CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTRE CO LTD
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Patent Information

Application Number
CN202211636968.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-14
Publication Date
2026-02-06
Estimated Expiration
2042-12-14

AI Technical Summary

Technical Problem

During the positioning and sinking of deep-water precast foundations for cross-sea super-large bridges, the combined effects of strong winds, waves, and ocean currents make it difficult to achieve construction safety and high-precision positioning and sinking.

Method used

High-precision positioning technology using "5G+BeiDou" or "5G+GPS" is employed to monitor the movement of the precast foundation. Combined with mooring cables and positioning vessels, the motion equations of wind, wave, and current coupling are established through an intelligent control center. The force regulators on the mooring cables are used for intelligent control to ensure the high-precision positioning and sinking of the precast foundation.

Benefits of technology

It enables high-precision positioning and placement of prefabricated foundations in complex environments, improving construction safety and efficiency, extending the construction window, and enhancing the reliability and economy of construction.

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Abstract

The application discloses an intelligent control method for positioning and sinking of a large bridge deepwater prefabricated foundation, wherein the upper part of the prefabricated foundation is above the water surface, the lower part is below the water surface, a positioning device is installed on the top surface, and J positioning ships are arranged around the prefabricated foundation, wherein I is a natural number greater than or equal to 3, J is a natural number greater than or equal to 4, and the positioning ships are connected to the prefabricated foundation through mooring cables. The method is to utilize the motion equation of the prefabricated foundation sinking process under the coupling action of wind, wave and current, and intelligently control the motion posture of the prefabricated foundation through the mooring cables by the intelligent control center. The application utilizes the motion equation of the prefabricated foundation sinking process under the coupling action of wind, wave and current, intelligently controls the motion posture of the prefabricated foundation through the mooring cables by the intelligent control center, and greatly improves the precision, robustness, efficiency and safety of the positioning and sinking of the deepwater prefabricated foundation.
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Citation Information

Patent Citations

  • Deepwater sinking installation device and method for offshore wind power cylindrical foundation

    CN113585316A

  • Method for positioning floatation transported heavy anchor of steel caisson of deep underwater foundation of bridge

    CN1472399A