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11.发明授权公开(公告)号：US12196076B1
公开(公告)日：2025-01-14
申请号：US18750211
申请日：2024-06-21
Inventor： Yifan Zeng , Weihong Yang , Qiang Wu , Xinjiang Wei , Xuejun Wang , Kai Pang , Xuan Xiao , Xue Liu
IPC: E21B49/00 , E21B7/04 , E21B21/06 , E21B33/138
Abstract: Disclosed is a grouting and water blocking method for a hard rock stratum. The grouting and water blocking method include the following steps. At first, hydrogeological information and coal seam information of a hard rock stratum is obtained. Then, a drilling trajectory of the hard rock stratum is determined based on the hydrogeological information and the coal seam information. Later, at least one drilling device is determined corresponding to the drilling trajectory based on types of multiple rock layers contained in the hard rock stratum. After that, the multiple rock layers contained in the hard rock stratum are drilled sequentially according to the drilling trajectory using the at least one drilling device. At last, in response to determining there is a water leakage area, the water leakage area is grouted.
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12.发明申请公开(公告)号：US20250012689A1
公开(公告)日：2025-01-09
申请号：US18452729
申请日：2023-08-21
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Liyuan YU , Minghe JU , Baoshan YAO , Lihua HU , Mingwei ZHANG , Zejun TAO , Zichen YUAN , Xiaoxiao SU
IPC: G01N3/24
Abstract: A constant-speed dynamic direct-shear test system and a test method for a rock mass structural plane are provided in the disclosure; the system includes a bearing frame, a loading frame, a horizontal loading device, a normal loading device, an oil supply device and a digital controller; a shear box is arranged in the loading frame, and the loading frame is fixedly connected with a top surface of one end of the bearing frame; the oil supply device and the horizontal loading device are controlled by the digital controller and output shearing force, the normal loading device is arranged on the loading frame and provides normal force to the shear box.
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公开(公告)号：US12189079B2
公开(公告)日：2025-01-07
申请号：US18569602
申请日：2022-10-28
Applicant: China University of Mining and Technology
Inventor： Haiyan Yang , Jianhua Yue , Zhixin Liu , Shuanggui Hu , Yunlei Xu , Wenyu Li , Huageng Ran , Rongqi Che , Menglang Sun , Zhenyang Li
Abstract: A time domain electromagnetic tensor based logging method, relating to the field of induction logging. A transmitting coil system Tx and a receiving coil system Rx are each composed of three orthogonal direction coils, and the transmitting coil system and the receiving coil system form a borehole probe; a time domain electromagnetic field is excited by means of two orthogonal transmitting coil systems Tx, and a secondary field signal is received by two orthogonal receiving coil systems Rx located above transmitting coils and having a distance D; during each measurement, three directions are used for transmitting, nine component data is received at the same time, and each component is a series of induction potentials in one-to-one correspondence with measurement time sequences, and a potential or resistance change, from near to far, of the rock stratum where a measurement point is located is obtained after time-depth conversion.
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14.发明申请公开(公告)号：US20250002304A1
公开(公告)日：2025-01-02
申请号：US18270230
申请日：2022-09-19
Applicant: China University of Mining and Technology
Inventor： Zhencai ZHU , Yu TANG , Gang SHEN , Xiang LI , Mengmeng GAO , Wei WANG , Yuxing PENG , Gongbo ZHOU , Hao LU , Qingguo WANG
Abstract: The disclosure discloses a device for detecting idling time of a brake shoe of a monorail hoist and a detection method thereof. The device includes a contact detection unit, a common end roller unit, an idling time detection unit and detection lines. The contact detection unit installed on a brake of the monorail hoist includes a tube in connection with the brake shoe. The common end roller unit is installed on a frame of the monorail hoist and corresponds to a travelling track. A metal probe corresponding to the travelling track is arranged inside the tube. A limiting bolt corresponding to a raised cylindrical block formed on the metal probe is formed on an inner side wall of the tube. The metal probe is contactable with the travelling track or the limiting bolt when the brake shoe brakes.
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15.发明申请公开(公告)号：US20240391509A1
公开(公告)日：2024-11-28
申请号：US18272805
申请日：2022-09-19
Applicant: China University of Mining and Technology
Inventor： Yu TANG , Zhencai ZHU , Gang SHEN , Xiang LI , Mengmeng GAO , Wei WANG , Yuxing PENG , Gongbo ZHOU , Hao LU , Qingguo WANG
Abstract: The disclosure discloses a system for controlling a multi-point synchronous braking of a monorail hoist and a utilization method thereof. The system comprises a contact detection unit, a common end roller unit, a hydraulic unit, a synchronous control unit and connection cables. The contact detection unit is installed on a brake shoe of a monorail hoist. The common end roller unit is installed on a travelling track and connected with a frame of the monorail hoist. The contact detection unit includes a tube in connection with the brake shoe. A metal probe corresponding to the travelling track is arranged inside the tube. A circular boss is formed on the metal probe. A limiting bolt corresponding to the circular boss is formed on an inner side wall of the tube. The metal probe is contactable with the travelling track or the limiting bolt when the brake shoe brakes.
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Patent Agency Ranking
公开(公告)号：US20240386163A1
公开(公告)日：2024-11-21
申请号：US18788118
申请日：2024-07-29
Applicant: China University of Mining and Technology , Shanxi Huayang Group New Energy Co., Ltd., No. 1 Mine
Inventor： Zhenghui Qu , Bangxu Rong , Liang Guo , Kebin Wei , Qingtian Zhang , Changxing Li , Jie Luo , Weike Wan , Xingyun Liu , Weijun Hou
IPC: G06F30/20
Abstract: A method for simulating and predicting deep reservoir structural fractures in consideration of thickness change is disclosed. The method firstly calculates a structural fracture apparent density by using a stress-based reservoir structural fracture prediction formula group, secondly obtains structural fracture linear density based on simulation experiment, thickness unit division and reservoir structural fracture prediction optimization formula, finally carries out a reliability judgment based on the structural fracture linear density, the apparent density and the measured inspection values by using parameter inspection and error analysis. The above method can effectively reduce the difficulty and cost of energy development.
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17.发明公开公开(公告)号：US20240346758A1
公开(公告)日：2024-10-17
申请号：US18580031
申请日：2023-03-27
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Wei YANG , Wenyuan WANG , Yingte FENG , Wenxiao ZHANG , Zening WEI
CPC classification number: G06T17/05 , G06F16/283 , G06T17/205 , G06T2210/56
Abstract: A mine digital model construction method based on a three-dimensional point cloud database is disclosed. Mine data resources are collected, valid coordinate point position information is extracted according to point cloud data extraction standards, and a mine three-dimensional point cloud database is established; a model of rock strata boundary surfaces, mining areas, and tunnels is constructed, a surface three-dimensional geological model is constructed, and a mine three-dimensional geological model is further constructed; and division into grids is performed to obtain a mine extraction inversion digital model. According to the method, a mine three-dimensional point cloud database can be obtained, and various identified rock strata topographies, positions of mining areas and tunnels, fault morphologies, and surface morphologies can be restored; mine extraction inversion digital models having different precisions can be constructed, a foundation is laid for crustal stress field inversion, and a reliable basis is provided for mine disaster prevention and control.
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公开(公告)号：US12091972B1
公开(公告)日：2024-09-17
申请号：US18596373
申请日：2024-03-05
Inventor： Yifan Zeng , Aoshuang Mei , Qiang Wu , Huaming Wei , Yashuai Cui , Shihao Meng , Weihong Yang , Kai Pang , Liang Yang , Yidi Xing
CPC classification number: E21C41/18 , E21C39/00 , E21C2100/00 , E21F17/18
Abstract: Disclosed are a method and a related device for determining a development status of a separation layer in a coal mine. The method includes: obtaining surface subsidence variation data of the coal mine within a preset time interval, rock stress variation data of a caving zone of the coal mine and water pressure variation data; determining a height decrease of the caving zone based on the rock stress variation data and the water pressure variation data; and determining the development status of the separation layer of the coal mine based on the height decrease and the surface subsidence variation data.
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公开(公告)号：US12091971B2
公开(公告)日：2024-09-17
申请号：US18346104
申请日：2023-06-30
Inventor： Yifan Zeng , Shihao Meng , Qiang Wu , Lu Wang , Shijie Tang , Xuedong Kan , Chao Yu , Han Bao
IPC: E21B47/11 , E21B33/124 , E21C39/00 , E21F16/00
CPC classification number: E21C39/00 , E21B33/1243 , E21B47/11 , E21F16/00
Abstract: A tracer diffusion device includes: a first container, a second container, a drilling pipe, a unidirectional driving device, and a bidirectional driving device. The first container holds a first fluid containing a tracer. The second container holds a second fluid. A first end of the drilling pipe is connected to the first container; a second end of the drilling pipe is extended into a borehole and equipped with a first sealing capsule and a second sealing capsule. A plurality of through holes are arranged on the drilling pipe between the first sealing capsule and the second sealing capsule. The unidirectional driving device is arranged on the drilling pipe, for injecting the first fluid from the first container into the borehole between the first sealing capsule and the second sealing capsule. The bidirectional driving device is arranged between the second container and the first sealing capsule.
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公开(公告)号：US12037905B2
公开(公告)日：2024-07-16
申请号：US17604113
申请日：2020-04-15
Inventor： Jiong Wang , Manchao He , Guangyuan Yu , Han Sun
Abstract: The present disclosure relates to a technical field of coal mining, particularly to a method of no-pillar mining with gob-entry retaining adapted for fully-mechanized top coal caving in a thick coal seam, which comprises the following steps: reinforcing support on a roof and two sides of a roadway; performing roof slitting blasting to form a pre-splitting slit; erecting a temporary support device and a gangue retaining device in the roadway along the retained entry; performing no caving within a range of a preset distance at an end of the working face near the retained entry side; and removing the temporary support device in the roadway after entry forming stabilizes, and closing the goaf to complete entry retaining. The roof slitting blasting is more beneficial to collapse of strata in the goaf, so that the strata in the slit can better fill stoping space after collapse, and the roof of the retained entry forms a short arm beam structure laterally, which avoids forming a long suspended roof in the goaf, and improves the stress of surrounding rock of gob-side entry retaining; coal caving is not performed in a certain range at the end of the working face of the retained entry side, which further ensures the filling effect of the goaf on the retained entry side, effectively limits the rotary sinking of blocks of the main roof, and greatly reduces effect on the stability of the retained entry.
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