High-flatness grab ship foundation trench fine digging operation control method
A control method and flatness technology, which is applied to the operation method of excavators/dredgers, earth movers/shovels, climate sustainability, etc., and can solve problems such as poor excavation flatness
Active Publication Date: 2020-12-15
ZHENJIANG YIHUA SYST INTEGRATION
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Problems solved by technology
However, the plane positioning, tide level positioning and excavation control level of the grab dredger during the excavation process are still low, and the excavation flatness is poor
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[0042]The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.
[0043]Such asfigure 1 Shown is a method for controlling the precision excavation of the foundation trench of a high-flatness grab ship provided by the present invention.
[0044]The specific technical solutions are as follows:
[0045]A method for controlling the precision excavation of the foundation trench of a high-flatness grab ship, the method includes the following steps:
[0046]1) Test whether each control device is operating normally during the operation;
[0047]2) Realize excavation positioning through plane positioning module and tide position positioning module respectively;
[0048]3) Perform underwater mud depth measurement before the ...
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The invention relates to a high-flatness grab ship foundation trench fine digging operation control method. A first positioning device is installed at the top of a grab crane and used for detecting areal-time excavation position of a grab bucket, a second positioning device is installed at the rotating center of the crane and used for detecting a rotating angle and a rotating center coordinate ofa swing arm of the grab crane, and a third positioning device is arranged at the top of a ship driving platform and is used for detecting a real-time position and a ship angle of a dredger, so that the precision requirements of different positions are correspondingly met through a plurality of sensors arranged at different positions; the real-time elevation H of a current water surface of the ship is calculated in real time through a tide level positioning module, so that a depth difference between the grab bucket and a mud layer under the water surface can be accurately calculated; and the dredging operation is carried out according to a function relationship between an opening degree and a depth deviation of the grab bucket, so that the dredging precision adjustment during fine diggingis realized according to the corresponding depth deviations at different opening angles.
Description
Technical field[0001]The invention relates to the technical field of grab ship control, in particular to a method for controlling the precision excavation operation of a high-flatness grab ship foundation trench.Background technique[0002]Grab boats are more adaptable to different digging depths and different soil qualities. Compared with other types of dredgers, they have the advantages of simple equipment, fewer wearing parts of dredging machinery, and lower ship cost. However, the level positioning, tide level positioning and excavation control level of the grab dredger in the excavation process is still low, and the excavation flatness is poor. Therefore, there is an urgent need to improve the control accuracy of the existing grab dredger in the operation process, thereby improving the flatness of the trench, reducing the waste of infrastructure excavation, and shortening the construction period.Summary of the invention[0003]In order to solve the above-mentioned defects and defic...
Claims
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Login to View More IPC IPC(8): E02F5/02E02F5/28E02F5/14E02F1/00
CPCE02F5/02E02F5/025E02F5/28E02F5/14E02F5/145E02F1/00Y02A90/30
Inventor 丁志兵吴晨马育祎许青
Owner ZHENJIANG YIHUA SYST INTEGRATION