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公开(公告)号：US11821874B1
公开(公告)日：2023-11-21
申请号：US18308753
申请日：2023-04-28
发明人： Xufei Gong , Lexin Chen , Yueying Zhang , Weiyao Guo , Chengguo Zhang , Yulong Zhang
CPC分类号： G01N3/04 , G01N3/24 , G01N2203/0025 , G01N2203/0098 , G01N2203/0226
摘要： A dynamic load shearing test device and method based on a hopkinson bar system are provided in this disclosure, which relates to the technical field of rock detection tests. The device according to the disclosure includes a bearing frame, a carriage, a sample holding unit, a pressure environment generating unit, a sample switching unit, an incident bar and a transmission bar, and the test method includes following steps: test device assembly, device leveling, pre-test preparation, test conducting, sample angle switching and test device resetting. The disclosure has advantages that the cylindrical sample can be quickly fixed, a required temperature environment can be well maintained, the cylindrical sample can be better fixed in a high-pressure environment, rotation of the cylindrical sample is not hindered in a low-pressure environment, switching of test positions is facilitated, and test efficiency can be accelerated.
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公开(公告)号：US11441982B2
公开(公告)日：2022-09-13
申请号：US17575150
申请日：2022-01-13
发明人： Weiyao Guo , Yan Tan , Tongbin Zhao , Yunliang Tan , Dongxiao Zhang
摘要： The disclosure provides a variable dip fault slip simulation test method, which relates to the technical field of indoor simulation test of underground engineering. The variable dip fault slip simulation test method of the disclosure adopts a sample device and a loading device, which includes the following steps: Step 1. sample preparation; Step 2. sample assembly; Step 3. loading preparation; Step 4. sample loading. The variable dip fault slip simulation test method of the disclosure can prepare rock like samples with different dip interfaces, simulate the slip failure process of faults with different dip angles, as well as the normal dip slip and reverse dip slip of faults, facilitate the operation of slip simulation test, and collect test data automatically and accurately.
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公开(公告)号：US12099038B1
公开(公告)日：2024-09-24
申请号：US18560982
申请日：2022-12-08
发明人： Tongbin Zhao , Minglu Xing , Chunlin Li , Yanchun Yin , Bin Liu , Fenghai Yu , Wenli Liu , Yubao Zhang , Weiyao Guo , Yaxin Liu , Xiaohao Wang , Longfei Li
摘要： A test system for an anchoring performance of a full-size rock mass anchor bolt under combined load and relates to the technical field of detection test equipment includes a primary frame, a co-directional pull-twist loading mechanism and a vertical shear loading mechanism. The primary frame includes a dual-parallel horizontal reaction frame and a vertical reaction frame. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism are arranged in synergy with the primary frame. The co-directional pull-twist loading mechanism performs synchronous pull and twist loading for the anchored rock mass and the vertical shear loading mechanism applies a static load or simulates a dynamic load disturbance. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism perform separate loading.
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公开(公告)号：US11860135B2
公开(公告)日：2024-01-02
申请号：US18317198
申请日：2023-05-15
发明人： Weiyao Guo , Yueying Zhang , Lexin Chen , Dongxiao Zhang , Yunliang Tan , Tongbin Zhao
摘要： A three-dimensional dynamic and static load test system for simulating deep roadway excavation and a method thereof are provided, which relates to the technical field of indoor simulation testing in underground engineering. The system includes a mobile platform, a box body, a support frame, a roadway excavation device, and a data monitoring unit. The system and method of the disclosure can reproduce the whole process of roadway excavation, simulate the multi-directional loading of deep roadway, and restore the real stress state of deep roadway under the influence of dynamic and static load superimposed disturbance. The problem of insufficient research under the condition of unidirectional static loading and lack of multi-directional dynamic and static loading in current large-scale experimental devices has been solved, and the stress and deformation of the surrounding rock of the roadway are reflected in real-time through the data monitoring unit.
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公开(公告)号：US12018534B1
公开(公告)日：2024-06-25
申请号：US18403435
申请日：2024-01-03
发明人： Weiyao Guo , Yueying Zhang , Yongqiang Zhao , Wenjing Guo , Chengguo Zhang , Xiangyu Wang , Tongbin Zhao , Yunliang Tan
CPC分类号： E21B19/081 , E21B3/02 , E21B21/011 , E21C37/00 , E21C41/18
摘要： A drilling device for coal mining is provided, including a placement board. The placement board is fixedly connected to a first support pillar and a second support pillar, and the first support pillar and the second support pillar are together fixedly connected to a transmission rod; the transmission rod is connected to support rods symmetrically distributed in a limited sliding manner, and the support rods symmetrically distributed are connected to a connecting rod in a sliding manner; the connecting rod is provided with grooves evenly distributed in a circumferential direction, the grooves are fixedly connected to pneumatic telescopic blocks, and the telescopic end of each pneumatic telescopic block is fixedly connected to an arc-shaped plate. The arc-shaped plate is extended in a circumferential direction to support the drilled hole close to the drill bit, preventing the collapse of the drilling wall close to the drill bit.
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公开(公告)号：US11834949B2
公开(公告)日：2023-12-05
申请号：US18178385
申请日：2023-03-03
发明人： Weiyao Guo , Lexin Chen , Yan Tan , Yunliang Tan , Tongbin Zhao
摘要： A collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting provided by the disclosure includes the following steps: step 1, driving into a coal seam to release pressure; step 2, low roof pre-splitting during driving process; step 3, supporting of roadway surrounding rock and support reinforcement; step 4, floor destressing of the roadway; step 5, high roof pre-splitting before mining; step 6, destressing and supporting of the advanced roadway surrounding rock during the mining process of the working face. The collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting, and to carry out local pressure relief, roof pre-splitting and reinforcement support construction in the whole cycle of the coal working face in a progressive manner, so as to achieve the prevention and control of rock burst in the working face.
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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
发明人： Yunliang Tan , Yanchun Yin , Tongbin Zhao , Yubao Zhang , Weiyao Guo , Xingxue Tang , Hongjie Zhou
摘要： 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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8.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
发明人： Weiyao Guo , Xuebin Gu , Tongbin Zhao , Yunliang Tan
摘要： 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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