Patents Assigned to CHINA UNIVERSITY OF MINING & TECHNOLOGY (BEIJING)
  • Patent number: 11911813
    Abstract: An ecological reconstructed sponge structure of a strip mine dump includes a three-layered sponge ecological structure arranged on a groundmass layer of the dump. From bottom to top, the three-layer sponge ecological structure comprises a water-resisting layer, a water-containing layer and a topsoil ecological layer. A thickness of the water-resisting layer is 100˜200 cm, a permeability coefficient of the water-resisting layer is 0.35˜0.7 m/d, and a degree of compaction is 1200˜1400 KPa. A thickness of the water-containing layer is 150˜250 cm, a permeability coefficient of the water-containing layer is 10˜20 m/d, and a degree of compaction is 800˜900 KPa. A thickness of the topsoil ecological layer is 40˜60 cm. Soil layer thicknesses and water content may be monitored through a ground penetrating radar.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: February 27, 2024
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY (BEIJING)
    Inventors: Yinli Bi, Suping Peng
  • Publication number: 20240035382
    Abstract: A fluidized coal mining method for implementing CO2 underground storage, includes mining area division, tunneling mining, filling and supporting, roof and bottom plate sealing, and boundary surrounding rock sealing. A goaf formed by a mining device after tunneling and mining along a mining strip is filled and supported, and filling and supporting can form a high-strength supporting wall body, which not only provides an effective supporting effect for roof and bottom plate rocks, but also forms a filled and supported wall body; a space for underground storage of CO2 is formed between adjacent filled and supported wall bodies; at the same time, the mining device further seals the roof and a bottom plate of the goaf, and seals boundary surrounding rocks of a mine field, so that the entire mine field forms a whole closed space for the underground storage of CO2 after mining is completed.
    Type: Application
    Filed: June 30, 2021
    Publication date: February 1, 2024
    Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
    Inventors: Yang JU, Peng LIU, Yu FEI, Xiaodong NIE, Yan ZHU
  • Patent number: 11879327
    Abstract: Disclosed is a system and a method of transient electromagnetic advanced detection. The system includes a detection host, an electromagnetic signal transmitter, a probe, and a communication device. The system and method of transient electromagnetic advance detection disclosed by examples of the present disclosure can realize an early-warning through a transient electromagnetic advance detection in a borehole while drilling the borehole in a tunnel or a roadway.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: January 23, 2024
    Assignees: CHINA UNIVERSITY OF MINING AND AND TECHNOLOGY, BEIJING, WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED
    Inventors: Qiang Wu, Chunsheng Liu, Yifan Zeng, Liu Liu, Fengjuan Tao, Gang Hu
  • Publication number: 20230349779
    Abstract: Disclosed are a testing system and method under fluid-solid coupling effects. A dynamic stress field during fluid flow, deformation of a porous rock framework, real-time evolution of the stress field and deformation of a fluid-solid interface under fluid-solid coupling effects can be obtained, on the basis of a collected photo-elastic stripe image and a surface deformation image. A stress field of a solid framework and fluid in porous rock, and a strain field of the solid framework and the fluid-solid interface under fluid-solid coupling effects can be visually and quantitatively displayed by means of a display device.
    Type: Application
    Filed: November 11, 2021
    Publication date: November 2, 2023
    Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
    Inventors: Yang JU, Jiangtao ZHENG, Zhangyu REN, Wenbo GONG
  • Patent number: 11781429
    Abstract: A method for blocking mine water inrush includes: grouting first slurry into an interface between the quaternary aquifer and the weathered bedrock aquifer in a fracture grouting manner until a first preset condition is met; forming a first water-resisting cushion after the first slurry is solidified; drilling a curve branch drill hole in the surface horizon downward; grouting second slurry into the curve branch drill hole in a downward grouting manner until a second preset condition is met; forming a second water-resisting cushion after the second slurry is solidified; grouting third slurry onto a top of the first water-resisting cushion in an upward grouting manner until a third preset condition is met; forming a third water-resisting cushion after the third slurry is solidified; wherein the third water-resisting cushion is located on the top of the first water-resisting cushion.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: October 10, 2023
    Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, University of Mining and Technology—Beijing Inner Mongolia Research Institute
    Inventors: Yifan Zeng, Qiang Wu, Weihong Yang, Zhaolai Hua, Yanping Miao, Lu Wang, Kai Pang, Lei Yang, Aoshuang Mei, Shihao Meng, Han Bao, Xue Liu, Xuan Xiao
  • Patent number: 11727634
    Abstract: The present disclosure discloses an intelligent position sensing system based on spatial three-dimensional model image matching, which realizes three-dimensional precise positioning and target orientation positioning of closed spaces, such as a coal mine. The position sensing system includes a three-dimensional GIS server, a position matching server, a wireless camera, and a wireless access device. Position sensing is realized by comparing an image collected by the wireless camera with a two-dimensional image generated by rendering.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: August 15, 2023
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
    Inventor: Yi Liu
  • Patent number: 11692918
    Abstract: A pressure-preserving conventional triaxial compression loading apparatus of the present invention includes a pressure vessel, an upper piston rod, a lower piston rod, and an annular oil bag assembly. Hollow chambers of the pressure vessel in vertical communication sequentially include an upper chamber, an upper sealed chamber, a confining pressure chamber, a lower sealed chamber, and a lower chamber from top to bottom. The annular oil bag assembly is placed in the confining pressure chamber. When an annular inner chamber of an annular oil bag is filled with medium, an outer wall of the annular oil bag and an inner wall of the confining pressure chamber are attached together. A fidelity specimen is placed in a specimen chamber defined by a lower end surface of the upper piston rod, an upper end surface of the lower piston rod, and an inner wall of the annular oil bag. A variety of measuring sensors are disposed in the annular inner chamber of the annular oil bag.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: July 4, 2023
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
    Inventors: Ruidong Peng, Hongwei Zhou, Wenhao Jia, Yu Yang, Kai Si, Jianqiang Wang
  • Patent number: 11691673
    Abstract: Provided is an off-road robot, including a front side portion, a rear side portion and a middle portion. The front side portion includes a front vehicle frame, a front wheel and a first driving system; the front wheels and the first driving system are disposed at the front vehicle frame; and the first driving system drives the front wheels. The rear side portion includes a rear vehicle frame, a rear wheel and a second driving system; the rear wheel and the second driving system are disposed at the rear vehicle frame; and the second driving system drives the rear wheels. The middle portion includes a first frame and a second frame; the first frame and the second frame are detachably connected; the front vehicle frame is connected with the first frame; and the rear vehicle frame is connected with the second frame.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: July 4, 2023
    Assignee: CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
    Inventors: Jianwei Zhao, Zhe Wang, Jianshe Ma, An Qian, Yanxin Pang
  • Patent number: 11620735
    Abstract: A method for restoring video data of a pipe based on computer vision is provided. The method includes: performing gray stretching on pipe image/video collected by a pipe robot; processing noise interference by smoothing filtering; extracting an iron chain from the center of a video image as a template for location; performing target recognition on the center of video data by an SIFT corner detection algorithm; detecting ropes on left and right sides of a target by Hough transform; performing gray covering on the iron chain at the center of the video image and the ropes on two sides; and restoring data by an FMM image restoration algorithm.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: April 4, 2023
    Assignee: CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
    Inventors: Ce Li, Mingcun Liu, Feng Yang, Xu Qiao
  • Publication number: 20230063143
    Abstract: The present disclosure relates to a technical field of coal mining, in particular to a surrounding rock stability control method adapted for a coal mining area main roadway. The method comprises the following steps: reinforcing support on a roof and two sides of the mining area main roadway on a basis of an original support form; digging a safety roadway along a stop line of a present working face required by coal mine design, and supporting the safety roadway, wherein a protective coal pillar is formed between the safety roadway and the mining area main roadway; performing slitting blasting on the roof in the safety roadway, wherein blast holes are arranged on a roadway corner line on one side of the present working face to form a pre-splitting slit; and performing stoping at a next working face after completing coal mining at the present working face when stoping at the present working face advances to the safety roadway.
    Type: Application
    Filed: April 15, 2020
    Publication date: March 2, 2023
    Applicant: China University of Mining and Technology, Beijing
    Inventors: Jiong WANG, Guangyuan YU, Jian JIANG
  • Patent number: 11536866
    Abstract: The present disclosure provides a diffracted wave imaging method, device and electronic apparatus. The method comprises: acquiring pre-stack seismic wave field data of a to-be-processed area; extracting target data of a target imaging point; fitting target time sample points in the target data based on the Gaussian model and solving the fitting function to determine a distribution range of the stationary point position signal of the reflected wave in the target data; determining migration imaging data of the target imaging point based on the target data and the distribution range; and determining a diffracted wave imaging result of the to-be-processed area based on the migration imaging data of all the imaging points in the to-be-processed area.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: December 27, 2022
    Assignee: CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
    Inventors: Peng Lin, Jingtao Zhao, Suping Peng, Xiaoqin Cui
  • Patent number: 11459849
    Abstract: A sealing method for a drilled hole in three zones of overburden comprises: blocking the fissure zone and the caving zone with at least one filling bag; and transporting prepared cement slurry to the drilled hole through a hollow drill pipe, so as to block the curved subsidence zone. The three zones of overburden comprise a fissure zone, a caving zone and a curved subsidence zone.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: October 4, 2022
    Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, Shaanxi Coal Caojiatan Mining Co., Ltd.
    Inventors: Yifan Zeng, Qiang Wu, Zhaolai Hua, Rui Wang, Zhenzhong Pang, Lu Wang, Yang Lv, Xin Du, Kai Pang, Aoshuang Mei
  • Publication number: 20220275726
    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.
    Type: Application
    Filed: April 15, 2020
    Publication date: September 1, 2022
    Applicant: China University of Mining and Technology, Beijing
    Inventors: Jiong WANG, Manchao HE, Guangyuan YU, Han SUN
  • Patent number: 11391151
    Abstract: An automatic coal mining machine and a fluidized coal mining method are provided. A first excavation cabin is configured to cut coal seam to obtain raw coal and to be transported to a first coal preparation cabin for separating coal blocks from gangue. Then, the obtained coal blocks are transported to a first fluidized conversion reaction cabin. The first fluidized conversion reaction cabin converts the energy form of the coal block into liquid, gas or electric energy, which is transported to a first energy storage cabin for storing. Coal mining and conversion are carried out in underground coal mines, so it is not necessary to raise coal blocks to the ground for washing and conversion, thereby reducing the transportation cost of coal, improving the utilization degree of coal, and avoiding the pollution of the ground environment caused by waste in the mining and conversion process.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 19, 2022
    Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, SHENZHEN UNIVERSITY
    Inventors: Yang Ju, Heping Xie, Yong Zhang, Yan Zhu, Feng Gao, Xiaodong Nie, Changbing Wan, Jinxin Song, Chang Lu, Hongbin Liu, Zhangyu Ren
  • Patent number: 11391661
    Abstract: An experiment system and transparent experiment method for replicating fluid displacement in a pore structure of a natural rock mass are provided. The natural pore structure is extracted and a digital porous model corresponding to the natural rock mass is reconstructed with the image processing method. Based on the digital porous model, a three-dimensional pore structure model with a transparent and visible internal structure is printed by a 3D printing device, such that the pore space inside the three-dimensional pore structure model is visible. In this way, the whole fluid flow during the displacement-seepage process within the natural rock mass can be replicated and visually observed from the outside when performing the displacement-seepage experiment. Further, temperature, flow rate, and pressure can be accurately controlled, to replicate various experiment conditions, so as to perform quantitative analysis on distribution features of a seepage field and a fluid speed field.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: July 19, 2022
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
    Inventors: Yang Ju, Wenbo Gong, Jiangtao Zheng, Chaodong Xi, Changbing Wan
  • Patent number: 11390489
    Abstract: A hoisting apparatus for a mine vertical shaft, a hoisting system for a mine vertical shaft and a controlling method thereof are provided. The hoisting apparatus includes a driving device provided at a wellhead and a guiding device provided in a vertical shaft. A position of the guiding device corresponds to a position of the driving device and a transmission rope is wound around the driving device and the guiding device. Moreover, the driving device is drivingly connected to the guiding device via the transmission rope; and a tension regulating device is provided in the vertical shaft. The guiding device is movably provided at the tension regulating device that is for regulating a distance between the driving device and the guiding device. The tension regulating device controls a tension of the transmission rope by regulating the distance between the driving device and the guiding device.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: July 19, 2022
    Assignee: CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
    Inventors: Manchao He, Guohua Cao, Xiaoming Sun, Jun Yang
  • Patent number: 11371320
    Abstract: An experimental method and system for simulating the evolution of reservoir fracture stress field, the experimental method comprises the following steps: (S1) preparing horizontal well fracturing model (100); (S2) applying boundary loads and constraints to the horizontal well fracturing model (100); (S3) injecting fracturing fluid or fracturing gas into a fracturing wellbore (130) of the horizontal well fracturing model (100) after loading for fracturing; in a fracturing stage, a photoelastic fringe image of the horizontal well fracturing model (100) is obtained by an optical phase shift method; the fracturing stage comprises an initial state before fracturing fluid or fracturing gas is injected and an end state after fracturing is completed. The experimental method and system can effectively simulate the whole process of horizontal well fracturing, and accurately obtain the variation law of reservoir stress field and its influence on crack propagation during horizontal well fracturing.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: June 28, 2022
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
    Inventors: Yang Ju, Jinxin Song, Peng Liu
  • Patent number: 11365624
    Abstract: 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.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: June 21, 2022
    Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED
    Inventors: Yifan Zeng, Qiang Wu, Chunsheng Liu, Lina Xing
  • Patent number: 11359999
    Abstract: The present invention provides an experimental platform for simulating a coal rock disaster of a coal mine extraction, including a base device, a coal simulation device, an immediate roof simulation device, a hydraulic support and a removable impact device. The coal simulation device is fixedly disposed on the base device; the hydraulic support is fixed on the base device and is located at one side of the coal simulation device; the immediate roof simulation device is disposed above the coal simulation device and the hydraulic support; the removable impact device is disposed above the immediate roof simulation device; the immediate roof simulation device is a rectangular frame; the rectangular frame is configured to pave a bulk simulation material and an immediate roof simulation material sequentially from the bottom up; and the removable impact device can impact the immediate roof simulation material and the bulk simulation material.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: June 14, 2022
    Assignee: China University of Mining and Technology, Beijing
    Inventors: Shengli Yang, Jiachen Wang, Hao Yue, Fengqi Liu, Yanyao Ma, Junjie Wang
  • Patent number: 11306586
    Abstract: An intelligent detection and recognition system and method for a coal-rock interface of a mine are provided. The intelligent detection and recognition system mainly includes an intelligent lifting support fastened to the top of a shearer, a non-contact radar antenna disposed at the top of the intelligent lifting support, and an operating terminal with which the radar antenna wirelessly conducts information transmission. In an operating state, a radiation direction of the radar antenna is perpendicular to the surface of a to-be-detected coal seam, and the operating terminal is configured to acquire radar data of the to-be-detected coal seam collected by the radar antenna, and draw and display a coal-rock horizon occurrence curve according to the radar data.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: April 19, 2022
    Assignee: China University of Mining and Technology-Beijing
    Inventors: Xianlei Xu, Suping Peng, Zheng Ma, Biao Guo, Tao Sun