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10 条记录 (耗时 0.033 秒)

    System and method for monitoring water inrush
    4.
    发明授权
    System and method for monitoring water inrush 有权

    公开(公告)号：US11365624B2

    公开(公告)日：2022-06-21

    申请号：US17036015

    申请日：2020-09-29

    申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING ,  WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED

    发明人： Yifan Zeng ,  Qiang Wu ,  Chunsheng Liu ,  Lina Xing

    IPC分类号： G01V3/26 ,  G01V3/34 ,  G01V3/38 ,  G01V9/02 ,  E21B47/13 ,  E21B47/003 ,  E21F17/06 ,  E21F17/18

    摘要： Disclosed is a system and a method for monitoring water inrush, including: a host terminal, a field host, at least one controller and at least one electrode array. Each electrode array is placed in one borehole and to detect electric field signals of surrounding rocks around the borehole; each controller connects with one electrode array and is to control the electrode array to carry out a high-density induced polarization measurement on the surrounding rocks; the field host connects with the controller and is to send control signals to the controller, receive and process the electric field signals output by the electrode array; and the host terminal connects with the field host and is to receive the electric field signals processed by the field host, determine changes on apparent resistivity and apparent chargeability of the surrounding rocks, and determine whether there exists water inrush according to the changes.

    Three-dimensional digital virtual imaging device and method for stratigraphic texture of borehole core
    5.
    发明授权
    Three-dimensional digital virtual imaging device and method for stratigraphic texture of borehole core 有权

    公开(公告)号：US10795051B2

    公开(公告)日：2020-10-06

    申请号：US16134297

    申请日：2018-09-18

    申请人： WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED ,  CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING

    发明人： Qiang Wu ,  Liu Liu ,  Yifan Zeng ,  Fengjuan Tao ,  Chunsheng Liu

    IPC分类号： H04N5/225 ,  G01V8/02 ,  H04N5/232 ,  H04N7/18 ,  G01V3/08

    摘要： Disclosed is a three-dimensional digital virtual imaging device for stratigraphic texture of borehole core, wherein the probe depth counting pulley is mounted on the lifting wire frame, the output shaft of the motor is configured to drive the reel to rotate, and one end of the cable is connected to the cable transfer node of the retractable reel, the signal input end of the borehole imaging trajectory measuring probe of the on-site imaging host is electrically connected to one end of the cable through the cable transfer node of the retractable reel, the cable is wound on the retractable reel, a retractable line is controlled by the retractable reel, the cable is extended and retracted on the probe depth counting pulley, the probe depth counting pulley records the length of the retractable line of the cable, the depth feedback signal output end of the depth counting pulley is connected to the depth feedback signal input end of the on-site imaging host, the motor control signal output end of the on-site imaging host is connected to the control signal input end of the motor, and the signal output end of the borehole imaging trajectory measuring probe is connected to the other end of the cable. It can automatically generate borehole video, two-dimensional digital virtual borehole core image and 3D borehole trajectory in real time.