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31.发明授权公开(公告)号：US11161276B2
公开(公告)日：2021-11-02
申请号：US16475866
申请日：2018-08-24
Abstract: Disclosed is a method of preparing a flexible deformable photonic crystal material for structural health monitoring, comprising the following steps: washing a grating master template; preparing and assembling a mold; obtaining an assembled mold by printing a three-dimensional mold comprising an upper die and a lower die by use of a 3D printing device and installing the grating master template on the three-dimensional mold; obtaining a polydimethylsiloxane (PDMS) one-dimensional photonic crystal film by replicating a one-dimensional grating structure of a surface of the grating master template by pouring PDMS into the assembled mold; finally, obtaining the PDMS one-dimensional photonic crystal film with a one-dimensional photonic crystal structure on a middle surface and protrusion structures at both ends by demolding, wherein the PDMS one-dimensional photonic crystal film is the flexible deformable photonic crystal material. A mechanochromic photonic crystal film is prepared by using a master template with a photonic crystal structure, a process is simple and easy to operate, a preparation period of a mechanochromic material is greatly shortened, and a preparation cost is reduced.
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32.发明授权公开(公告)号：US11149527B2
公开(公告)日：2021-10-19
申请号：US17264962
申请日：2019-08-01
Inventor： Gang Wang , Jianqiang Chen , Lulu Sun , Kunlun Liu , Hao Xu , Sanlong Zheng , Xiangyu Tang , Zhiyuan Liu
IPC: C09K8/70 , E21B43/00 , E21B43/267 , C09K8/60 , C09K8/86
Abstract: A steeply-inclined ultra-thick coal seam gas control method based on a binary composite liquid. The method includes taking a clean fracturing fluid system and a microemulsion as a binary composite liquid. The method includes injecting the binary composite liquid into a coal mass by means of a main hydraulic fracturing and permeability improvement method of hydraulic fracturing and water jet slotting to form a coal mass gas extraction system of binary composite liquid fracturing and permeability improvement. The method includes investigating and analyzing a gas control effect of the steeply-inclined ultra-thick coal seam according to change characteristics and analysis of gas extraction flow rate, change characteristics and analysis of permeability coefficient of coal seam, change characteristics and analysis of gas natural desorption speed of coal mass, change characteristics and analysis of gas concentration of return air flow of working face and theoretical analysis of drilling cuttings index.
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33.发明申请公开(公告)号：US20210246767A1
公开(公告)日：2021-08-12
申请号：US17264962
申请日：2019-08-01
Inventor： Gang WANG , Jianqiang CHEN , Lulu SUN , Kunlun LIU , Hao XU , Sanlong ZHENG , Xiangyu TANG , Zhiyuan LIU
IPC: E21B43/00 , E21B43/267 , C09K8/86 , C09K8/60 , C09K8/70
Abstract: A steeply-inclined ultra-thick coal seam gas control method based on a binary composite liquid. The method includes taking a clean fracturing fluid system and a microemulsion as a binary composite liquid. The method includes injecting the binary composite liquid into a coal mass by means of a main hydraulic fracturing and permeability improvement method of hydraulic fracturing and water jet slotting to form a coal mass gas extraction system of binary composite liquid fracturing and permeability improvement. The method includes investigating and analyzing a gas control effect of the steeply-inclined ultra-thick coal seam according to change characteristics and analysis of gas extraction flow rate, change characteristics and analysis of permeability coefficient of coal seam, change characteristics and analysis of gas natural desorption speed of coal mass, change characteristics and analysis of gas concentration of return air flow of working face and theoretical analysis of drilling cuttings index.
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公开(公告)号：US11085858B1
公开(公告)日：2021-08-10
申请号：US17222405
申请日：2021-04-05
Inventor： Yunliang Tan , Yanchun Yin , Tongbin Zhao , Yubao Zhang , Weiyao Guo , Xingxue Tang , Hongjie Zhou
Abstract: The present disclosure provides a true triaxial tester with adjustable loading stiffness and a test method, relating to the technical field of rock mechanics. The tester includes a first principal stress variable stiffness loading apparatus, a second principal stress variable stiffness loading apparatus, a third principal stress loading apparatus, a monitoring system, and a control system. The monitoring system includes a stiffness sensor, a pressure sensor, and a displacement sensor. Loading stiffness in a first principal stress direction and a second principal stress direction is adjustable. The tester has the following advantages: it has fixed loading stiffness, can complete stiffness loading of one side being free and five sides being variable, and is easy to operate.
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公开(公告)号：US11078791B2
公开(公告)日：2021-08-03
申请号：US17110412
申请日：2020-12-03
Inventor： Xuesheng Liu , Deyuan Fan , Yunliang Tan , Kang Yang , Shilin Song , Yunhao Wu , Xuebin Li , Xin Wang
Abstract: It discloses a grouting bolt-cable composite beam and supporting method for advanced support of fractured surrounding rock in deep coal mines. The quadrate plates are fixed at both ends of the steel beam, the anchor cable holes are arranged in the center of the steel beam and the quadrate plates, and the diameter of anchor bolt holes should be larger than that of the grouting cables. There are four anchor bolt holes on each quadrate plate, and each anchor bolt hole corresponds to a anchor plate, the horizontal surface of the anchor plate is close to the quadrate plate, and the arc parts of the four anchor plates are all facing the center of the quadrate plate.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20210223152A1
公开(公告)日：2021-07-22
申请号：US17225983
申请日：2021-04-08
Inventor： Tongbin ZHAO , Yanchun YIN , Yunliang TAN , Minglu XING , Yue QIU , Wuwei ZHENG , Xinyuan WANG
Abstract: The present disclosure provides an inner and outer framework combined variable stiffness rock mechanics tester and a testing method, relating to the technical field of rock mechanics. The tester includes a stiffness adjusting apparatus, a test loading apparatus, a monitoring system, and a control system. During a test, according to monitoring data, the load of the stiffness adjusting cylinder is controlled through the control system, and the displacement of the inner top beam is adjusted in real time, to ensure that the loading stiffness reaches a design value and remains constant, which solves the technical problem that the loading stiffness of the rock mechanics tester cannot be quantitatively adjusted, and is easy to operate.
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37.发明授权公开(公告)号：US11041790B2
公开(公告)日：2021-06-22
申请号：US17156545
申请日：2021-01-23
Inventor： Weiyao Guo , Xuebin Gu , Tongbin Zhao , Yunliang Tan
Abstract: The present disclosure provides a stress gradient loading test apparatus and a method of accurately determining loading energy, relating to the technical field of a rock mechanical test. The apparatus includes an upper pressure-bearing plate, a specimen fixing device, a stress transfer device, and a simulation specimen. A computer processes stress and strain monitoring data. The stress transfer device includes a plurality of plate-like high strength materials in combination. A simulation roadway is opened in the simulation specimen, and a strain gauge and a stress sensor are disposed on the simulation specimen. In a test using the apparatus, stress gradient loading is realized and elastic strain energy is calculated by the plate-like high strength materials with different stiffnesses of the stress transfer device, and loading energy acting on the simulation specimen is calculated in combination with energy applied by a tester.
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公开(公告)号：US20210139882A1
公开(公告)日：2021-05-13
申请号：US17257156
申请日：2018-08-14
Inventor： Xiangming HU , Weimin CHENG , Mingyue WU , Yanyun ZHAO , Di XUE
Abstract: A microcapsule of sustainable self-healing coal mine ventilation sealing material crack. The microcapsule includes a microcapsule core material and a microcapsule wall material. The microcapsule core material is prepared using a bacterial lyophilized powder and a substrate. By using urease-producing bacteria, there is provided a method of protecting bacteria to survive a long time in the cement-based material, supplying sufficient nutrient substances and reducing the impact of the doping of bacteria on the mechanical property of the cement-based material. The bacterial lyophilized powder and substrate are prepared into microcapsules which are added into the cement-based material when the cement-based material is mixed. In this case, once concrete cracks, the microcapsules breaks and the spores in the material are activated to perform normal metabolism so as to induce precipitation of calcium carbonate continuously, thereby continuously realizing self-healing of coal mine ventilation sealing material cracks.
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公开(公告)号：US20210091544A1
公开(公告)日：2021-03-25
申请号：US16483836
申请日：2018-12-25
Inventor： Jidai WANG , Aiqin SUN , Zhiwei WANG , Junying WEI , Enpeng FU , Muxin HAO , Maoxuan LIANG , Shuai GUO
Abstract: Provided is a climbing robot traveling along an overhead line including a support structure, the support structure includes a controller, and three cantilevers, i.e., a front cantilever, a middle cantilever and a rear cantilever are mounted at a side of the support structure. Three cantilevers are connected with the support structure through a cantilever base, the front and rear cantilevers are located at both ends of the support structure and include a travel driving mechanism at the top, an opening mechanism, a flexible rotating mechanism and a clamping mechanism in the middle, and a lifting mechanism at the bottom, and the middle cantilever includes a travel driving mechanism at the top, an opening mechanism and a flexible rotating mechanism in the middle, a lifting mechanism at the bottom, and a charging mechanism at a front side of the middle cantilever. The climbing robot in the present disclosure realizes stable travel and climb along an overhead line of 200 kV to 500 kV, and is capable of crossing devices such as an anti-vibration hammer and a suspension clamp mounted on the overhead line. The climbing robot of the present disclosure has features such as a strong obstacle-crossing capability, a high obstacle crossing efficiency, a large climbing angle, a firm structure, a light weight, a simple operation and a good real-time performance.
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公开(公告)号：US20210087919A1
公开(公告)日：2021-03-25
申请号：US16603972
申请日：2018-12-24
Inventor： Linjing XIAO , Qinghui SONG , Yulong ZHANG , Yu WANG , Shuai ZUO , Qiang LIU
IPC: E21B47/002 , G01M10/00 , E21B47/001
Abstract: Provided is an experimental apparatus for simulating lifting operation of deep-sea mining, which relates to the technical field of experimental equipment of deep-sea mining. By this apparatus, dynamic characteristics of a spatial structure when simulating lifting operation of deep-sea mining are solved. The apparatus includes an experimental box, a wave-making mechanism, a flowrate control mechanism, a mining simulation mechanism and a monitoring mechanism. The wave-making mechanism includes a control box and a wave-pushing board for simulating waves. The flowrate control mechanism includes a water pump, a motor, a grating board and a manifold so that the flowrate and the flow volume can be adjusted by the grating board and the manifold. The mining simulation mechanism includes an experimental ship model, a lifting pipe, a material-mixing pipe, a mineral slurry pipe, a material-delivering pipe and a material-returning pipe for simulating lifting operation states. The monitoring mechanism includes a wave height measurer, a displacement sensor, a flowrate measurer and an image collection apparatus for detecting dynamic influence of the wave height and the wave speed on the mining simulation mechanism during a mining process, especially during lifting operation. Further, the apparatus has advantages such as multi-parameter real-time monitoring, low fabrication cost and simple operation.
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