The invention discloses an underwater anchoring positioning method for a concrete anchor in a deepwater area. The method comprises the following steps: firstly, manufacturing a ship body axis of a crane ship and mounting a prism at the bottom of the center of a lifting hook; mounting a bow GNSS receiver, a stern GNSS receiver and a total station; then, the crane ship is in place to the designed position and the designed bow orientation through a marine GPS and a gyroscope of the crane ship, and rechecking is carried out; according to the coordinates measured by the stern GNSS receiver and the bow GNSS receiver and the horizontal distance of a prism at the bottom of the center of a lifting hook of the crane ship actually measured by the total station, the actual center coordinate and azimuth angle of the anchoring position of the concrete anchor are calculated for positioning, after the positioning result meets the tolerance requirement, the crane ship falls the hook, the concrete anchor is monitored in the lowering process until implantation, and the concrete anchor is completely anchored. And underwater anchoring and positioning of the concrete anchor are completed. The method is easy to operate, positioning which cannot be contacted underwater is converted into positioning which can be contacted on water, the positioning precision can be guaranteed, and the safety risk in the concrete anchor positioning process is reduced.

    本发明公开了一种深水区混凝土锚的水下抛锚定位方法,首先是进行起重船船身轴线的制作及吊钩中心底部棱镜安装;然后进行船头、船尾GNSS接收机及全站仪的安装;然后利用起重船自带的船用GPS和陀螺仪将起重船就位至设计位置及设计的船艏方位,并进行复核;根据船尾GNSS接收机和船头GNSS接收机测量的坐标,及全站仪实测起重船吊钩中心底部棱镜的水平距离,计算混凝土锚抛锚位置的实际中心坐标及方位角进行定位,定位结果满足限差要求后,起重船落钩,进行混凝土锚下放过程中的监测,直至着床,混凝土锚水下抛锚定位完成。本发明操作简单,将水下无法接触的定位,转换成水上可接触的定位,不仅定位精度能得到保证,而且减小混凝土锚定位过程中的安全风险。


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    Titel :

    Underwater anchoring positioning method for concrete anchor in deepwater area


    Weitere Titelangaben:

    一种深水区混凝土锚的水下抛锚定位方法


    Beteiligte:
    CHEN JIAN (Autor:in) / ZENG GAO (Autor:in) / TUO PENG (Autor:in) / HE XUHUI (Autor:in) / YE SHAOQI (Autor:in) / PENG PO (Autor:in) / ZHU JIANYANG (Autor:in) / LEI JIAN (Autor:in) / LAN QIPING (Autor:in) / ZHANG JUN (Autor:in)

    Erscheinungsdatum :

    2024-02-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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