Active control method for slippage shipment process of large marine structure

A marine structure and active control technology, applied in the direction of lifting devices, fluid pressure actuation devices, fluid pressure actuation system components, etc., can solve the problems of large-scale marine structures such as tilting, crushing docks, and cumbersome adjustment processes

Inactive Publication Date: 2019-11-12
TIANJIN UNIV MARINE TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the sliding displacement and loading process, with the movement of the structure, different positions of the wharf will have different degrees of deformation, resulting in changes in the loads, and it is necessary to adjust according to the deformation of different parts of the wharf, otherwise the wharf will be affected. Excessive force will crush the wharf and even cause large marine structures to tilt. In severe cases, it will lead to capsizing, resulting in huge safety accidents and property losses
At present, there is no method to adjust the force on the wharf during t

Method used

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  • Active control method for slippage shipment process of large marine structure
  • Active control method for slippage shipment process of large marine structure
  • Active control method for slippage shipment process of large marine structure

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Embodiment Construction

[0022] The patent of the present invention will be further described below in conjunction with specific embodiments.

[0023] (1) First build a scaffold to build a large marine structure 1 on it, then install a hydraulic jack on each of the four slide shoes 10, number the hydraulic jacks A1, A2, A3, A4 in sequence, and install them on the top of the hydraulic jacks Pressure sensors, each pressure sensor is connected through the RS-485 network, and at this time the four hydraulic jacks are not in contact with the bottom of the structure.

[0024] (2) After the construction is completed, four hydraulic jacks A1, A2, A3, A4 are used to lift the large marine structure 1, which is divided into two stages. The first stage is as follows: image 3 As shown, the automatic control is carried out by the PLC. First, it is judged that the system is in the jacking state, and the relief valves G1, G2, G3, G4, and G5 are set to a relief pressure. The pressure required to lift the structure)...

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Abstract

The invention relates to an active control method for a slippage shipment process of a large marine structure. The method can be used for solving the problem of adjusting the wharf stress in the slippage displacement process and in the shipment process at the same time. The lifting of each jack pile leg can be independently controlled through lifting adjustment of each hydraulic jack pile leg; thestress of each jack pile leg can be coordinated through carrying out lifting adjustment on all jack pile legs as needed, so that the sliding displacement process and the loading process of the structure are controlled to be smoothly carried out; and meanwhile, the phenomenon that the jack pile legs are suspended is prevented, and the problem that the structure is overturned due to the fact that certain jack pile legs damage a wharf due to too large stress is solved.

Description

technical field [0001] The invention belongs to the field of marine engineering equipment, and in particular relates to an active control method for a large-scale marine structure sliding and loading process. Background technique [0002] The slipping and loading process of large marine structures includes the slipping and shifting process and the shipping process. The slipping and shifting process is to continuously lay rectangular concrete sliders on the wharf, and lay continuous steel plates on the sliders to form a slideway. Large ocean structures There are wooden boards under the sliding shoes under the pile legs of the structures, which are in contact with the steel plates on the sliders, and lubricating oil is applied between the two for lubrication. The linear winches drag the large marine structures to slide and shift; the loading process is in A continuous slideway is laid on the barge to meet the top of the slideway on the wharf, so that it is convenient to tow la...

Claims

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Application Information

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IPC IPC(8): B66F3/46F15B21/02
CPCB66F3/46F15B21/02
Inventor 李清霍伟良王显康李东涛王军
Owner TIANJIN UNIV MARINE TECH RES INST
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