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61. 发明申请

US20200292419A1 EXPERIMENTAL PLATFORM AND EXPERIMENTAL METHOD FOR SIMULATING COAL ROCK DISASTER OF COAL MINE STOPE 审中-公开
公开(公告)号：US20200292419A1
公开(公告)日：2020-09-17
申请号：US16666755
申请日：2019-10-29
申请人： China University of Mining and Technology, Beijing
发明人： Shengli Yang , Jiachen Wang , Hao Yue , Fengqi Liu , Yanyao Ma , Junjie Wang
IPC分类号： G01M99/00
摘要： 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.

62. 发明申请

US20190086577A1 THREE-DIMENSIONAL DIGITAL VIRTUAL IMAGING DEVICE AND METHOD FOR STRATIGRAPHIC TEXTURE OF BOREHOLE CORE 审中-公开
公开(公告)号：US20190086577A1
公开(公告)日：2019-03-21
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： G01V8/02 , H04N5/232 , H04N7/18 , H04N5/225
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.

63. 发明申请

US20160018379A1 Geomechanical Fluid-solid Coupling Testing Device for Water Inrush From Coal Mine Collapse Column 有权
标题翻译：煤矿塌陷柱冲水地球力学流体 - 固体耦合试验装置
公开(公告)号：US20160018379A1
公开(公告)日：2016-01-21
申请号：US14801917
申请日：2015-07-17
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY BEIJING
发明人： Qiang WU , Lei NIU , Shucai LI , Shouqiang LIU , Yifan ZENG
IPC分类号： G01N33/24
CPC分类号： G01N33/24
摘要： A geomechanical fluid-solid coupling testing device for water inrush from coal mine collapse column is disclosed, which comprises a testing bed and a collapse column simulating device, wherein the testing bed has a box type structure with an opening at its top and is provided therein with multiple layers of similar materials in which a tunnel or a mining face can be dug out; and the collapse column simulating device comprises a plexiglass barrel with openings at both its top and bottom, the plexiglass barrel is provided at its top opening with a plexiglass lifting device and a hard plastic baffle, and the plexiglass lifting device is provided with a lifting level which is connected with a lifting rope. It can be used for simulating a construction process in a situation of tunnel digging or coal seam mining, for example, for collecting water inrush omen information, and for studying on surrounding rock mechanics, deformation and collapse column seepage rules during construction, thus facilitating safe construction and early warning in practical engineering.
摘要翻译：公开了一种用于煤矿塌陷柱的水涌入的地质力学流体 - 固体耦合测试装置，其包括测试床和塌陷模拟装置，其中测试床具有箱形结构，其顶部具有开口并且设置在其中具有多层类似的材料，其中可以挖出隧道或采矿面; 并且塌陷模拟装置包括在其顶部和底部都具有开口的有机玻璃桶，在其顶部开口处设有有机玻璃提升装置和硬塑料挡板，并且有机玻璃提升装置具有提升水平其与提升绳连接。可用于模拟隧道掘进或煤层开采情况下的施工过程，例如收集水涌信息，研究周围岩石力学，施工过程中变形和崩塌柱渗流规律，从而有助于安全实际工程建设和预警。

64. 发明申请

US20150234092A1 Method for Determining a Weight-adjusting Parameter in a Variable-weight Vulnerability Assessment Method for Water-outburst From Coal Seam Floor 审中-公开
标题翻译：确定煤层地下水爆发可变重量脆弱性评估方法中的重量调节参数的方法
公开(公告)号：US20150234092A1
公开(公告)日：2015-08-20
申请号：US14622143
申请日：2015-02-13
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
发明人： Qiang WU , Bo LI , Shouqiang LIU , Yifan ZENG
IPC分类号： G01V99/00 , G06F17/10 , G06F17/50
CPC分类号： E21B47/10 , G01V99/005 , G01V2210/66
摘要： A method for determining a weight-adjusting parameter in a variable-weight vulnerability assessment method for water-outburst from coal seam floor, comprising the steps of determining a dominant factors and a constant-weight weighting value, further comprising the following steps: 1) building a state variable-weight vector formula; 2) selecting or giving an assessment unit in accordance with constraint conditions; 3) determining an optimum variable-weight weighting value of the selected assessment unit; and 4) solving a value of the weight-adjusting parameter according to a parameter solving model. The method for determining a weight-adjusting parameter in assessment and prediction of vulnerability for water-outburst from coal seam floor by means of a variable-weight model is proposed at the first time. In this method, an optimum variable-weight weighting value of the selected assessment unit is set, and then a value of the weight-adjusting parameter is solved according to a built parameter solving model. With practical application testing, the weight-adjusting parameter determined by this method can effectively reflect the controlling effects on water-outburst of the multiple dominant factor index values in various combined states, and can effectively improve the precision of assessment and prediction of vulnerability for water-outburst from coal seam floor.
摘要翻译：一种用于确定煤层地下水突出的可变重量脆弱性评估方法中的重量调节参数的方法，其特征在于包括以下步骤：确定主要因素和恒重权重值，所述方法还包括以下步骤：1）构建状态变量向量公式; 2）根据约束条件选择或给予评估单位; 3）确定所选择的评估单元的最佳可变权重权重值; 和4）根据参数求解模型求解重量调整参数的值。第一次提出了通过可变权重模型确定煤层地下水爆发脆弱性评估和预测权重调整参数的方法。在该方法中，设定所选择的评价部的最优权重加权值，然后根据建立的参数求解模型求解加权调整参数的值。通过实际应用测试，通过该方法确定的重量调节参数可以有效反映各种综合状态下多重优势因子指标值对水爆发的控制效果，有效提高水的脆弱性评估和预测精度从煤层地板出来。

65. 发明申请

US20230063143A1 SURROUNDING ROCK STABILITY CONTROL METHOD ADAPTED FOR COAL MINING AREA MAIN ROADWAY 有权
公开(公告)号：US20230063143A1
公开(公告)日：2023-03-02
申请号：US17605771
申请日：2020-04-15
申请人： China University of Mining and Technology, Beijing
发明人： Jiong WANG , Guangyuan YU , Jian JIANG
IPC分类号： E21C41/18 , E21D9/14
摘要： 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. By cutting the roof and relieving pressure at the stop mining line of the working face, an influence of mining disturbance on stability of the mining area main roadway in the stoping process of the working face is reduced, and by reinforcing support, a yielding deformation capacity of the mining area main roadway is improved, and the stability of the surrounding rock of the mining area main roadway is further improved.

66. 发明申请

US20220381661A1 PRESSURE-PRESERVING CONVENTIONAL TRIAXIAL COMPRESSION LOADING APPARATUS AND METHOD FOR PERFORMING CONVENTIONAL TRIAXIAL COMPRESSION TEST ON PRESSURE-PRESERVING SPECIMEN USING SAME 有权
公开(公告)号：US20220381661A1
公开(公告)日：2022-12-01
申请号：US17828860
申请日：2022-05-31
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
发明人： Ruidong PENG , Hongwei ZHOU , Wenhao JIA , Yu YANG , Kai SI , Jianqiang WANG
IPC分类号： G01N3/10 , G01N33/24 , G01N3/06
摘要： 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. The pressure-preserving conventional triaxial compression loading apparatus of the present invention may accommodate a fidelity specimen, and use the annular oil bag assembly and the upper and lower piston rods to perform a pressure-preserving conventional triaxial loading test on the fidelity specimen, so that test data is more accurate and reliable, to help to study the mechanical behavior of in-situ rock and measure their properties more faithfully.

67. 发明授权

US11459849B1 Filling bag and sealing method for drilled hole for detection in three zones of overburden 有权
公开(公告)号：US11459849B1
公开(公告)日：2022-10-04
申请号：US17730031
申请日：2022-04-26
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING , Shaanxi Coal Caojiatan Mining Co., Ltd.
发明人： Yifan Zeng , Qiang Wu , Zhaolai Hua , Rui Wang , Zhenzhong Pang , Lu Wang , Yang Lv , Xin Du , Kai Pang , Aoshuang Mei
IPC分类号： E21B33/13 , E21B27/00 , E21F17/00
摘要： 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.

68. 发明授权

US11306586B2 Intelligent detection and recognition system and method for coal-rock interface of mine 有权
公开(公告)号：US11306586B2
公开(公告)日：2022-04-19
申请号：US16897363
申请日：2020-06-10
申请人： China University of Mining and Technology-Beijing
发明人： Xianlei Xu , Suping Peng , Zheng Ma , Biao Guo , Tao Sun
IPC分类号： E21C35/24 , E21C31/08
摘要： 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.

69. 发明申请

US20200240270A1 I-Shaped Water-Retaining Dam For Underground Reservoir In Coal Mine 审中-公开
公开(公告)号：US20200240270A1
公开(公告)日：2020-07-30
申请号：US16745650
申请日：2020-01-17
申请人： China University of Mining and Technology (Beijing)
发明人： Renliang Shan , Haochen Zhang , Xiangsong Kong
IPC分类号： E21F17/103
摘要： The present invention discloses an I-shaped water-retaining dam for an underground reservoir in a coal mine. The I-shaped water-retaining dam is located between coal pillar dams to isolate an underground reservoir from a corresponding coal roadway. The I-shaped water-retaining dam includes an upper flange plate, a web plate, and a lower flange plate from top to bottom, where a vertical face of a dam body is of an I shape; the upper flange plate extends into a roadway roof; two ends of the web plate are embedded into the coal pillar dams; and the lower flange plate extends into a floor. The I-shaped water-retaining dam is located in an underground coal roadway, and bears complex surrounding rock stress. The present invention effectively overcomes water seepage of a weak part at an upper part of a conventional I-shaped water-retaining dam.

70. 发明授权

US10564080B2 Method for measuring stress field variations during CO2 fracturing process 有权
$Method for measuring stress field variations during CO2 fracturing process$
公开(公告)号：US10564080B2
公开(公告)日：2020-02-18
申请号：US16317815
申请日：2018-04-17
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
发明人： Yang Ju , Peng Liu , Hongbin Liu , Yongming Yang
IPC分类号： G01N3/00 , G01N3/12 , G06T17/05 , E21B43/16 , E21B49/00 , B33Y80/00 , B33Y10/00
摘要： A method for measuring a stress field evolution during a CO2 fracturing process is provided, which is adopted to not only transparently display the spatial distribution and propagation morphology of internal fracturing fracture of a three-dimensional physical models, but also obtain internal three-dimensional stress phase diagram in a fracture propagation process by integration of a CT scanning, a digital reconstruction, a 3D printing, a CO2 fracturing experiment, a stress freezing and a photoelastic measurement techniques, thereby realizing transparent display and quantitative characterization of the three-dimensional stress field and its evolution law of a solid matter in the CO2 fracturing process.

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