Direct elevation control dredging method for dredge ship

A technology of elevation control and dredger, applied in the direction of earth mover/shovel, construction, etc., can solve problems such as large control deviation and difficult engineering quality, and achieve the effect of improving dredging efficiency and engineering quality

Active Publication Date: 2012-06-27
CCCC GUANGZHOU DREDGING
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Problems solved by technology

[0003] The current method used in conventional dredging projects requires the conversion of the bathymetry datum level and the engineering design elevation, due to factors such as tidal level zoning, wind and wave currents, and changes in the weight of dredging equipment (such as rake heads, cutter heads, and grabs, etc.) Therefore, the control deviation is relatively large, and it is difficult to ensure stable engineering quality

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  • Direct elevation control dredging method for dredge ship
  • Direct elevation control dredging method for dredge ship
  • Direct elevation control dredging method for dredge ship

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Embodiment Construction

[0013] In order to further illustrate the technical means adopted by the present invention and the effects obtained, the technical scheme of the dredger direct elevation control dredging method proposed by the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments .

[0014] The dredging method for direct elevation control of dredgers provided by the present invention is applied in grab dredgers as a specific embodiment. The dredging control system is composed of a series of process state sensors on the grab dredger, RTK mobile station, data acquisition module, dredging tool monitoring module, dredging tool motion control module and electromechanical integration drive unit, the data acquisition module receives The status data of construction ships and dredgers during on-site construction and the data of RTK mobile stations collected by the process status sensor are used to calculate the elevation...

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Abstract

The invention discloses a direct elevation control dredging method for a dredge ship, which comprises the following steps: arranging an RTK (Real Time Kinematic) mobile station and a process state sensor on the dredge ship; acquiring the positioning data of a dredger according to the RTK mobile station and the process state sensor; calculating the elevation criterion of the dredger according to the positioning data of the dredger; and positioning the dredging position of the dredger according to the elevation criterion. As the positioning technology based on real-time dynamic carrier phase difference and the on-site real-time tidal observation technology are combined, the method has the advantages that all-weather elevation positioning navigated far sea operation is realized, and the elevation positioning accuracy can reach the centimeter level. Therefore, the dredging efficiency and the engineering quality are greatly improved, and the construction requirements higher than the conventional elevation precision index specification are met.

Description

technical field [0001] The invention belongs to the technical field of dredging engineering, in particular to a dredging method with direct elevation control of a dredger. Background technique [0002] In conventional dredging projects, dredging ships generally use the method of bathymetry reference control to carry out dredging operations. Plane navigation and positioning adopt GPS global positioning system and ship's built-in dredger construction electronic graphics system, and the computer screen displays and monitors the plane excavation position in real time; depth control adopts on-site real-time tide inspection as the elevation reference and ship depth control system, According to the manually input target excavation depth data and the tide level at that time, the dredger is controlled to be lowered to the excavation depth. [0003] The current method used in conventional dredging projects requires the conversion of the bathymetry datum level and the engineering desi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F5/28
Inventor 曹湘波刘国生许向东刘烈晖韦纪军杨巍何伟刘建唐少鸣王晓光张继潮李纪元王小锋
Owner CCCC GUANGZHOU DREDGING
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