公开(公告)号：US20240264059A1

公开(公告)日：2024-08-08

申请号：US18691990

申请日：2023-04-10

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weitao LIU ,  Haifeng WU ,  Xiangxi MENG ,  Jiyuan ZHAO ,  Yanhui DU ,  Lifu PANG ,  Mengke HAN ,  Yaohua LI ,  Weiguo SONG ,  Hao LI

IPC: G01N3/56

CPC classification number: G01N3/565 ,  G01N2203/0226 ,  G01N2203/0242 ,  G01N2203/0284 ,  G01N2203/0676 ,  G01N2203/0694

Abstract: The disclosure provides a rock stratum grouting water blocking test device and method under a mining coupling condition, and relates to the technical field of permeability testing. The device includes a solution box, a test box, a pressing plate replacement box, a grouting pump, a recovery pool and a water pump, the solution box is connected with the test box through a liquid injection pipe, the bottom of the test box is connected with the pressing plate replacement box, the pressing plate replacement box is connected with a bottom plate, and the bottom plate is connected with a control panel. The device can be used for testing the influence of the single-factor or multi-factor coupling action of temperature, water quality, water pressure, water flow and grouting pressure on the grouting effect.

公开(公告)号：US20240085290A1

公开(公告)日：2024-03-14

申请号：US18554576

申请日：2022-06-08

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weitao LIU ,  Haifeng WU ,  Xiangxi MENG ,  Yanhui DU ,  Lifu PANG ,  Mengke HAN ,  Jiyuan ZHAO

IPC: G01N3/12 ,  G01N33/24

CPC classification number: G01N3/12 ,  G01N33/24

Abstract: The present disclosure provides a grouting and water-plugging device for a fractured rock in a mine coupling state and a test method, and relates to the technical field of rock mechanics testing. The device includes a pressurizer, a reservoir, a test box, and a grouting pump. The reservoir includes a temperature sensor and a pressing-water plate. The pressing-water plate is connected to the pressurizer through a pressurizing rod. A pressure measuring pipe and a drainage pipe are installed on an outer side of the reservoir. The reservoir is connected to a water pump through a water injection pipe. The test box includes a rock, a transverse force exerting plate, a longitudinal force exerting plate, a stress sensor and the temperature sensor. The longitudinal force exerting plate is provided with multiple water through holes. A sliding box door is hinged to a front wall of the test box. The pressure measuring pipe and the drainage pipe are installed on a rear wall of the test box. The rear wall of the test box is connected to the grouting pump through a grouting pipe. A water pressure gauge is installed on the grouting pipe. Valves are installed on the grouting pipe, the pressure measuring pipe, the water injection pipe, and the drainage pipe. The device can be used to conduct a test, simulating coupling conditions of stress-temperature-water pressure in a mine, for a rock, and to verify the effectiveness of water plugging.