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: 2014-08-13
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

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Embodiment Construction

[0013] In order to further illustrate the technical means adopted by the present invention and the obtained effects, the following is a clear and complete description of the technical scheme of the dredger direct elevation control dredging method proposed by the present invention in conjunction with the accompanying drawings and preferred embodiments. .

[0014] Take the application of the dredger direct elevation control dredging method provided by the present invention in a grab dredger as a specific example. The dredging control system consists of a series of process state sensors on the grab dredger, RTK mobile station, data acquisition module, dredger monitoring module, dredger motion control module and mechatronic drive unit. The data acquisition module receives The state data of the construction ships and dredgers and the data of the RTK mobile station are collected by the process state sensor, and the elevation datum is calculated according to the relevant algorithm mo...

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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 for direct elevation control of a dredger. Background technique [0002] In conventional dredging engineering, dredging ships generally use the method of bathymetric reference control to dredging operations. The plane navigation and positioning adopts GPS global positioning system and the ship's own dredger construction electronic graphics system, the computer screen displays and monitors the plane excavation position in real time; According to the manually input target excavation depth data and the current tide level, control the dredging equipment to be lowered to the excavation depth. [0003] At present, the method used in conventional dredging projects requires the conversion of the bathymetric datum level and the engineering design elevation. Therefore, the control deviation is large, and it is difficult to ensure stable engineering quality....

Claims

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Application Information

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Patent Type & Authority Patents(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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