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61. 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。

62. 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.

63. 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.

64. 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.

65. 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.

66. 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.

67. 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.

68. 发明授权

US10408721B2 Apparatus for stress freezing experiment during fracturing process 有权
$Apparatus for stress freezing experiment during fracturing process$
公开(公告)号：US10408721B2
公开(公告)日：2019-09-10
申请号：US16313469
申请日：2017-12-07
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： G01N3/12 , G01N3/18
摘要： A device for stress-freezing experiments during fracturing process according to the present application, in which heating and cooling treatment on a specimen under corresponding temperature control according to a preset temperature gradient and a photosensitive curve is performed by a temperature control system, to realize stress-freezing of the specimen; a pressure is applied to a specimen by a true triaxial servo loading system; and corresponding fracturing experiments are performed to the specimen by a fracturing liquid pumping system having an output end arranged in a thermo-controlled oven.

69. 发明授权

US10281603B2 Method, apparatus and device of fracture AVO inversion for fractured medium 有权
$Method, apparatus and device of fracture AVO inversion for fractured medium$
公开(公告)号：US10281603B2
公开(公告)日：2019-05-07
申请号：US15246664
申请日：2016-08-25
申请人： BEIJING IVY TECHNOLOGY CO. LTD. , CHINA UNIVERSITY OF MINING AND TECHNOLOGY (BEIJING)
发明人： Xiaoqin Cui , Suping Peng , Wenfeng Du
IPC分类号： G01V1/30
摘要： The present disclosure discloses a fracture AVO inversion method for a fractured medium, wherein, said method includes: acquiring seismic data from the fractured medium; obtaining a reflection coefficient of the fractured medium, by an AVO inversion for the seismic data based on a newly-built equation. The present disclosure also provides a fracture AVO inversion apparatus and device for a fractured medium. The present invention can flexibly and accurately obtain properties of a fractured medium with impedance contrast (rock properties of the host media plus properties of thee fracture).

70. 发明授权

US09897585B2 Geomechanical fluid-solid coupling testing device for water inrush from coal mine collapse column 有权
公开(公告)号：US09897585B2
公开(公告)日：2018-02-20
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： G01N17/00 , 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, which has 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.

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