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公开(公告)号：US12129760B2
公开(公告)日：2024-10-29
申请号：US18690263
申请日：2023-06-30
Inventor： Fenghai Yu , Zhanling Li , Yunliang Tan , Tongbin Zhao , Tucheng Li
IPC: E21D21/00
CPC classification number: E21D21/0033 , E21D21/0086
Abstract: A multi-stage pressure yielding and anti-impact device for anchoring support is proposed, which includes an anti-impact component, a secondary pressure yielding component, and a primary pressure yielding component. The primary pressure yielding component and the secondary pressure yielding component each include an outer sleeve, an inner extrusion sleeve, and an expansion platform, and the expansion platform is arranged at a bottom end of the inner extrusion sleeve. A buffering and energy-absorbing material filling body is arranged between the outer sleeve and the inner extrusion sleeve. An outside diameter of the outer sleeve in the primary pressure yielding component is equal to that of a large-diameter end of the expansion platform in the secondary pressure yielding component, and the outer sleeve in the primary pressure yielding component is pressed against a bottom of the expansion platform in the secondary pressure yielding component.
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Patent Agency Ranking
公开(公告)号：US10969314B2
公开(公告)日：2021-04-06
申请号：US16976163
申请日：2019-12-19
Inventor： Tongbin Zhao , Chunlin Li , Minglu Xing , Yunliang Tan , Chen Zhao , Zhi Wang , Xiaoliang Li , Fenghai Yu , Jinglong Jia
Abstract: The present disclosure provides a device and a method for an anchor bolt (cable) supporting structure test and an anchoring system performance comprehensive experiment, and relates to the technical field of anchoring tests. The device includes a gantry, a loading mechanism, a test mechanism and a test piece, wherein the gantry includes a base and an operation platform; the loading mechanism includes a loading frame, a chuck, a surrounding rock force loading oil cylinder and a hollow drawing oil cylinder; the test mechanism includes a load, a displacement and an acoustic emission and other monitoring mechanisms, and the test piece includes a rock test piece, an anchor bolt (cable), an anchor net, and the like; the loading mechanism and the hollow drawing oil cylinder are disposed on the base, and a torsion motor and an anchor bolt drill are disposed on the operation platform, wherein the rock test piece is placed between bearing plates, one end of the anchor bolt (cable) is fixed by the chuck or anchored into the rock test piece, and the other end of the anchor bolt (cable) passes through the hollow drawing oil cylinder. The device is capable of not only testing mechanical properties of the anchor bolt (cable) and an anchoring member, but also realizing simulation of a stress environment of “five sides loaded and one side non-loaded” so as to perform a surrounding rock drilling response or anchoring system performance comprehensive experiment.
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3.发明授权公开(公告)号：US11859493B2
公开(公告)日：2024-01-02
申请号：US17269557
申请日：2019-05-14
Inventor： Fenghai Yu , Kai Zhou , Yunliang Tan , Xuepeng Gao , Wei Zhao
Abstract: A device includes a pressure measuring segment, a connecting rod, a hydraulic pump, a pressure gauge, a high-pressure oil pipe, a pressure control valve, a tray, a push rod and a connection casing. The pressure measuring segment is on the connecting rod, a front end of the push rod is connected with the connecting rod, the tray is at a rear end of the push rod, the connection casing is connected with the tray. The pressure measuring segment includes a main pipe, a hydraulic bladder, a fixing ring, a barrier sheet, an outer pillow housing and a connection sleeve. Both ends of the hydraulic bladder are sleeved on the main pipe, an oil inlet is in communication with the hydraulic bladder, the outer pillow housing is sleeved on the main pipe, the connection sleeve is wrapped around the outer pillow housing.
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公开(公告)号：US11067392B2
公开(公告)日：2021-07-20
申请号：US17043778
申请日：2019-05-14
Inventor： Yunliang Tan , Kai Zhou , Fenghai Yu , Tongbin Zhao
Abstract: An anchor bolt length determination method based on monitoring of a roof rock stratum horizontal extrusion force includes drilling a borehole in the middle of a roadway roof to determine a surrounding rock fracturing scope by a borehole television. The method includes selecting the number and locations of horizontal extrusion force measuring points according to the surrounding rock fracturing scope. The method includes monitoring and recording a change of the horizontal extrusion force over time in the borehole by a device for monitoring a roof rock stratum horizontal extrusion force. The method includes selecting a location with the largest horizontal extrusion force as a center of a anchoring segment of an anchor bolt to determine a distance between the anchoring center and the roof. The method includes calculating a total length of the anchor bolt.
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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
Inventor： Tongbin Zhao , Minglu Xing , Chunlin Li , Yanchun Yin , Bin Liu , Fenghai Yu , Wenli Liu , Yubao Zhang , Weiyao Guo , Yaxin Liu , Xiaohao Wang , Longfei Li
Abstract: 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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6.发明授权公开(公告)号：US11703432B2
公开(公告)日：2023-07-18
申请号：US17872839
申请日：2022-07-25
Inventor： Fenghai Yu , Xuerui Yang , Yunliang Tan , Qiang Ren , Kai Zhou , Chuang Zhang , Pan Du , Qingduo Wang
IPC: G01N3/12
CPC classification number: G01N3/12
Abstract: An in-situ test device and method for surrounding rock strength of bolt supported roadway is provided. The test device includes a fixing mechanism, a loading mechanism, a measuring mechanism and a control system. The loading mechanism includes a hydraulic pump and a plunger pump, the hydraulic pump drives the plunger pump to work and controls the lifting speed of the loading cylinder; the measuring mechanism includes an infrared ranging unit and a wireless pressure monitoring unit; the control system controls the work of the loading mechanism and processes the monitoring data. The test device is directly installed in the roadway and fixed with the bolt. The device is loaded after leveling, the device is disassembled after the monitoring data are obtained, and the in-situ test for the surrounding rock strength of the bolt supported roadway is completed. The steps are simple and adaptable.
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