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1.发明申请公开(公告)号：US20220244152A1
公开(公告)日：2022-08-04
申请号：US17585960
申请日：2022-01-27
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Xudong SHI , Jinwen BAI , Xinyu YANG , Boqiang CUI , Xianjie DU
Abstract: A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.
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公开(公告)号：US20220390340A1
公开(公告)日：2022-12-08
申请号：US17835926
申请日：2022-06-08
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Kai WANG , Jinwen BAI , Jun GUO , Boqiang CUI , Xudong SHI , Haotian WU , Xinyu YANG , Cheng SONG
IPC: G01N3/10
Abstract: A loading system for a Hopkinson pressure bar test under water-gas-temperature multi-field coupling action includes: a sample sealed cabin which includes sealing flanges, Y-shaped and high-temperature resistant sealing rings, and a sealed cabin body; a gas pressure loading device which includes a high-pressure gas tank, a pressure regulating valve, a second barometer, a second high-pressure valve and a first three-way valve connected in sequence; a water pressure loading device which includes an electric pressure test water pump, a water pressure gauge, an accumulator and a one-way valve connected in sequence; a temperature loading device which includes thermocouple heating rods, a temperature display and a thermocouple temperature control circuit board connected in sequence; and a dynamic and static combined loading device which includes an axial pressure loading device, an impact loading device and a Hopkinson pressure bar member.
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公开(公告)号：US20220282619A1
公开(公告)日：2022-09-08
申请号：US17752842
申请日：2022-05-24
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Yijiang FAN , Pengfei WANG , Chenliang HAO , Xiaoze WEN , Jun GUO , Jinwen BAI , Tingye QI , Jianan LIU , Linjun ZHU , Changquan WU
Abstract: A method for carrying out grouting between adjacent gateroads in internal-staggered split-level coal mining. A return air gateroad of a stoping face and an inlet air gateroad of a heading face are not on the same level. The return air gateroad of the stoping face is arranged along a roof of a coal seam. The inlet air gateroad of the heading face is arranged along a floor of the coal seam. There is a height difference between the return air gateroad and the inlet air gateroad in a vertical direction. During the construction process, the inlet air gateroad is excavated at a delay distance of 180-200 meters from the return air gateroad. The drilling and grouting are performed while excavating the roadway, where grouting holes are arranged in a single row. A device for implementing the method is also provided.
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公开(公告)号：US20250003337A1
公开(公告)日：2025-01-02
申请号：US18885086
申请日：2024-09-13
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Zhu LI , Jianyu FAN , Jingyu ZHANG , Chengen QI , Guilin WU
Abstract: A ventilation method for a high gas working face based on alternating intake and air return in a mine gallery is provided. In this method, an isolated island working face is divided into several sections along a strike direction. A coal pillar is alternately set as a conventional section and a gas-drainage section. Opposite coal pillars in the two mine galleries within the same section are respectively used as the conventional section and the gas-drainage section. Two mine galleries on both sides of the isolated island working face are alternately used as an intake gallery and a return gallery. The coal pillar at the side of the mine gallery as the return gallery is the gas-drainage section. A gas-drainage hole communicating a goaf is provided in the gas-drainage section, so that gas in the goafs at two sides of the isolated island working face can be extracted alternately.
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5.发明公开公开(公告)号：US20240360762A1
公开(公告)日：2024-10-31
申请号：US18364733
申请日：2023-08-03
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Junbiao MA , Jinwen BAI , Ruikai PAN , Yanna HAN , Xudong SHI , Jiachen MI , Guowei WU , Jun GUO , Fei CHANG
CPC classification number: E21F17/16 , C04B14/06 , C04B18/0418 , C04B22/064 , C04B22/143 , C04B40/0231 , E21D11/10 , C04B2111/00017
Abstract: Disclosed is a method for backfilling and reconstructing a carbon storage space in an abandoned main roadway and storing CO2. A surrounding rock of the main roadway is surveyed through geophysical exploration technology, and an anchor bolts (anchor cables) are used to reinforce and support an area which has unstable confining pressure bearing. According to a width and a height of the roadway section of the main roadway, a support formwork is forged in advance, and after the support formwork is placed in the main roadway, backfilling slurry is injected to the periphery of the support formwork. Meanwhile, supercritical carbon dioxide is injected into the backfilling slurry and the roadway, respectively.
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Patent Agency Ranking
公开(公告)号：US20190168357A1
公开(公告)日：2019-06-06
申请号：US16208592
申请日：2018-12-04
Applicant: Taiyuan University of Technology
Inventor： Zhixin JIN , Chunwang ZHANG , Guorui FENG , Xuanmin SONG , Shengyong HU , Yujiang ZHANG , Tingye QI , Zhen LI
Abstract: A rock sanding device includes a base, a bottom sanding plate, an adjustable connecting rod, an elastic loader, a connector, a side sanding brush, a top sanding plate, an inner rod, a prong and a drill rod. The top of the drill rod is fixedly connected with the rotating shaft of the external water drilling rig and the external water drilling rig has a water inlet joint to introduce water into the drill rod. The inner rod and drill rod are connected and fixed coaxially, and the bottom of the drill rod is symmetrically welded with four prongs. The rock specimen is placed in the center of the side sanding brush. The top sanding plate and the bottom sanding plate are provided in the top side and bottom side of the rock specimen, respectively.
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7.发明公开公开(公告)号：US20240209734A1
公开(公告)日：2024-06-27
申请号：US18595263
申请日：2024-03-04
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Wei GUO , Tingye QI , Zhu LI , Jiaqing CUI , Yekai CUI , Jingkai MA
IPC: E21C41/18
CPC classification number: E21C41/18 , E21C2100/00
Abstract: An I-patterned filling method for an initial stage of coal mining based on roof fracture characteristics is provided. A relationship between an overburden load borne by a main roof and an overhang size is determined based on principle of virtual work and a surgery theory when an overhang distance of the main roof reaches an initial weighting interval to enter a plastic limit state with an advance of a working face to obtain the initial weighting interval. An initial fracturing interval of an immediate roof is obtained in the same way. According to a subsidence law of the main roof in an inverted hip roof form, the filling is performed at a key position around an internal plastic hinge line through I-patterned three-strip filling. Size parameters of the I-pattered filling are designed to prevent the immediate roof and the main roof from being fractured.
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8.发明申请公开(公告)号：US20200088907A1
公开(公告)日：2020-03-19
申请号：US16234497
申请日：2018-12-27
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Chunwang ZHANG , Zhixin JIN , Rui GAO , Shengyong HU , Zhen LI , Jiaqing CUI , Cheng SONG , Xiaohong NIU
Abstract: A three-dimensional analog simulation test system for gas-liquid countercurrent in an abandoned mine goaf includes a three-dimensional analog simulation device configured to simulate an analog environment of gas-liquid countercurrent in an abandoned mine goaf, a gas supply system, an automatic water pressure control system and a hydraulic loading system. The three-dimensional analog simulation device includes a reaction frame and a three-dimensional analog simulation chamber. The reaction frame includes a beam, a base and a column for connecting the beam and the base. The three-dimensional analog simulation chamber is arranged inside the reaction frame. The test system can be used to simulate the gas-liquid countercurrent in an abandoned mine goaf so as to study the evolution of water accumulation and gas enrichment in long-term abandonment of closed mines and the migration evolution rules of gas-liquid two-phase in abandoned mines with high gas density.
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公开(公告)号：US20240301782A1
公开(公告)日：2024-09-12
申请号：US18364720
申请日：2023-08-03
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Jian LI , Jinwen BAI , Jun GUO , Junbiao MA , Xudong SHI
IPC: E21B43/295 , E21F15/00
CPC classification number: E21B43/295 , E21F15/00
Abstract: Disclosed is a method for remining a residual coal pillar in a residual mining area by collaboration of pillar-side backfilling and in-situ gasification. The method includes the following steps of: ascertaining geological and hydrological conditions, a geometric shape and a reserve of a residual coal pillar; determining the feasibility of underground gasification mining for the residual coal pillar; carrying out side supporting on the residual coal pillar in a goaf by using a pillar-side backfilling method; and carrying out the underground gasification mining on the residual coal pillar by means of an underground coal gasification process.
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公开(公告)号：US20220244153A1
公开(公告)日：2022-08-04
申请号：US17586061
申请日：2022-01-27
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Tingye QI , Jinwen BAI , Chao SONG , Shuiyun HOU , Lirong LI , Yanqun YANG , Xudong SHI
Abstract: A device and method for testing the bearing capacity of grouped pillars in the inclined goaf under coupled biaxial static and disturbance stresses are provided. Four protection rings are arranged on a base, each protection ring is installed with one machine frame therein, a bottom end of the machine frame is connected with the base and a top end thereof is connected with a transverse frame. Sliding rails are arranged on two sides of the base, side frames are installed on the sliding rails. A vertical force loading device is arranged at a bottom of a workbench, transverse force loading devices are arranged on inner sides of the side frames respectively. A force disturbance device is arranged at the bottom of the transverse frame. An upper slidable clamping seat and an upper pressure disk are arranged above the samples, and a lower slidable clamping seat is arranged below the samples.
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