公开(公告)号：US20190203599A1

公开(公告)日：2019-07-04

申请号：US16326136

申请日：2017-08-16

申请人： National Research Council of Canada

发明人： Zhigang Sun ,  Kuo-Ting Wu ,  Silvio Elton Krüger ,  David Rocheleau ,  Yves Quenneville

IPC分类号： E21D21/02 ,  G01L5/00 ,  G01M5/00 ,  G01N29/07 ,  G01N29/32 ,  G01N3/02

CPC分类号： E21D21/02 ,  E21D21/00 ,  G01L5/0004 ,  G01M5/0041 ,  G01N3/00 ,  G01N3/02 ,  G01N29/07 ,  G01N29/326 ,  G01N2203/0055 ,  G01N2291/011 ,  G01N2291/0232 ,  G01N2291/0258 ,  G01N2291/0421 ,  G01N2291/0422

摘要： A methods and systems for determining a change in condition of a rock bolt. Some methods may comprise, at a first point in time, propagating shear and longitudinal ultrasonic waves along the rock bolt to measure a first time of flight for each of the shear and longitudinal waves, at a second point in time after the first point in time, propagating shear and longitudinal ultrasonic waves along the rock bolt to measure a second time of flight for each of the shear and longitudinal waves, and using the relative changes of the first and second time of flights, determining the change in condition of the rock bolt section.

公开(公告)号：US09488049B2

公开(公告)日：2016-11-08

申请号：US14126262

申请日：2011-06-13

申请人： Manchao He ,  Zhibiao Guo ,  Jiong Wang ,  Jun Yang ,  Xiaoming Sun

发明人： Manchao He ,  Zhibiao Guo ,  Jiong Wang ,  Jun Yang ,  Xiaoming Sun

IPC分类号： G01M5/00 ,  E21D21/02 ,  G01L5/00

CPC分类号： E21D21/02 ,  G01L5/0038 ,  G01L5/0061

摘要： A tension meter of an anchor rod with constant resistance and large deformation comprises a pull rod and a hollow jack. The meter further includes: a rotation device for controlling the rotation angle of the hollow jack; a lifter for adjusting the height of the hollow jack and the rotation device; a first hydraulic pump for driving the hollow jack, wherein the hollow jack is fixed on the rotation device mounted on the lifter. The meter has a large measurement range and a high load capacity.

摘要翻译： 具有恒定阻力和大变形的锚杆的张力计包括拉杆和中空千斤顶。 该仪表还包括：用于控制中空千斤顶的旋转角度的旋转装置; 用于调节中空千斤顶和旋转装置的高度的升降器; 用于驱动中空千斤顶的第一液压泵，其中中空千斤顶固定在安装在升降机上的旋转装置上。 仪表具有较大的测量范围和高负载能力。

公开(公告)号：US07927044B2

公开(公告)日：2011-04-19

申请号：US12023198

申请日：2008-01-31

申请人： Peter Harold Craig ,  Timothy Joseph Gaudry

发明人： Peter Harold Craig ,  Timothy Joseph Gaudry

IPC分类号： E21D21/00 ,  E21D20/02

CPC分类号： E21D21/008 ,  E21D21/006 ,  E21D21/02

摘要： A tensioning assembly 10 for a cable bolt having a flexible shaft 12 comprises a clamping device 14, 16 configured to mount to the bolt shaft 12 with an axis (CA) of the clamping device aligned with the shaft axis (SA); and an outer member located over, and engaged with, the clamping device 14, 16. The outer member 18 is arranged, under a predetermined movement of the outer member, to impart drive to the clamping device 14, 16 to bias the clamping device 14, 16 to move in the direction of the clamping device axis. A cable bolt and method of tensioning a cable bolt is also disclosed.

摘要翻译： 用于具有柔性轴12的电缆螺栓的张紧组件10包括夹紧装置14,16，该夹紧装置14,16被构造成以与轴线（SA）对准的夹紧装置的轴线（CA）安装到螺栓轴12。 以及位于夹紧装置14,16上方并与夹紧装置14,16接合的外部构件。外部构件18在外部构件的预定运动下布置以赋予夹紧装置14,16的驱动以偏压夹紧装置14 ，16沿夹紧装置轴线的方向移动。 还公开了一种电缆螺栓和张紧电缆螺栓的方法。

公开(公告)号：US07927042B2

公开(公告)日：2011-04-19

申请号：US11231128

申请日：2005-09-20

申请人： Anthony John Spencer Spearing ,  Joseph John Jingle, Jr.

发明人： Anthony John Spencer Spearing ,  Joseph John Jingle, Jr.

IPC分类号： E21B21/00

CPC分类号： E21D21/008 ,  E21D11/006 ,  E21D21/0073 ,  E21D21/02

摘要： An adjustable yield rock bolt that comprises an elongated tensile support member that interacts with at least one gouging member and a receiving member capable of receiving the elongated tensile support member and hold the gouging member segment there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield before ultimate failure. The bolt has adjustability by allowing for controlled yield by gouging of the elongated tensile support member for any length of displacement.

摘要翻译： 一种可调节的产量岩石螺栓，其包括细长的拉伸支撑构件，其与至少一个气刨件和能够接收细长的拉伸支撑构件的接收构件相互作用，并且在其间保持气刨构件段，其中，细长的拉伸支撑构件延伸超过 接收构件在最终故障之前对应于预定量的产量的长度。 螺栓具有可调节性，允许通过细长的拉伸支撑构件的任意长度的位移进行气刨的控制的产量。

公开(公告)号：US20110052332A1

公开(公告)日：2011-03-03

申请号：US12873887

申请日：2010-09-01

申请人： John G. Oldsen ,  Yaokun Wu ,  Marc W. Lamothe

发明人： John G. Oldsen ,  Yaokun Wu ,  Marc W. Lamothe

IPC分类号： E21D21/00

CPC分类号： E21D21/0006 ,  E21D21/0033 ,  E21D21/004 ,  E21D21/0046 ,  E21D21/02

摘要： A mine roof bolt includes an elongated rod and a polymer coating layer. The elongated rod has a first end and a second end with a protruding portion extending radially outward from the elongated rod. The polymer coating layer covers at least a portion of the elongated rod between the first and second ends. The elongated rod is movable relative to the polymer coating layer in an axial direction. The elongated rod has a first position where the elongated rod has a predetermined axial position relative to the polymer coating layer and a second position where the elongated rod has a displaced axial position relative to the first position.

摘要翻译： 一种矿井屋顶螺栓包括细长杆和聚合物涂层。 细长杆具有第一端和第二端，其具有从细长杆径向向外延伸的突出部分。 聚合物涂层覆盖在第一和第二端之间的细长杆的至少一部分。 细长杆相对于聚合物涂层沿轴向移动。 细长杆具有第一位置，其中细长杆相对于聚合物涂层具有预定的轴向位置，而第二位置，细长杆相对于第一位置具有位移的轴向位置。

公开(公告)号：US20080179575A1

公开(公告)日：2008-07-31

申请号：US12023198

申请日：2008-01-31

申请人： Peter Harold Craig ,  Timothy Joseph Gaudry

发明人： Peter Harold Craig ,  Timothy Joseph Gaudry

IPC分类号： B25B25/00

CPC分类号： E21D21/008 ,  E21D21/006 ,  E21D21/02

摘要： A tensioning assembly 10 for a cable bolt having a flexible shaft 12 comprises a clamping device 14, 16 configured to mount to the bolt shaft 12 with an axis (CA) of the clamping device aligned with the shaft axis (SA); and an outer member located over, and engaged with, the clamping device 14, 16. The outer member 18 is arranged, under a predetermined movement of the outer member, to impart drive to the clamping device 14, 16 to bias the clamping device 14, 16 to move in the direction of the clamping device axis. A cable bolt and method of tensioning a cable bolt is also disclosed.

摘要翻译： 用于具有柔性轴12的电缆螺栓的张紧组件10包括夹紧装置14,16，该夹紧装置14,16被构造成以与轴线（SA）对准的夹紧装置的轴线（CA）安装到螺栓轴12。 以及位于夹紧装置14,16上方并与其夹紧的外部构件。 外部构件18在外部构件的预定运动下布置，以对夹紧装置14,16施加驱动力，以使夹紧装置14,16偏压以沿夹紧装置轴线的方向移动。 还公开了一种电缆螺栓和张紧电缆螺栓的方法。

公开(公告)号：US3137268A

公开(公告)日：1964-06-16

申请号：US19704162

申请日：1962-05-23

申请人： CLIVE H BRAMSON

发明人： HORNWOOD CARL G

IPC分类号： E21D21/02

CPC分类号： E21D21/02

公开(公告)号：US20230340878A1

公开(公告)日：2023-10-26

申请号：US18178385

申请日：2023-03-03

申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Weiyao GUO ,  Lexin CHEN ,  Yan TAN ,  Yunliang TAN ,  Tongbin ZHAO

IPC分类号： E21F1/04 ,  E21C41/18 ,  E21D20/00 ,  E21D21/02

CPC分类号： E21F1/04 ,  E21C41/18 ,  E21D20/00 ,  E21D21/02

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, distress sing 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.

公开(公告)号：US09835030B2

公开(公告)日：2017-12-05

申请号：US14762119

申请日：2014-02-06

申请人： Ola Våhlström

发明人： Ola Våhlström

IPC分类号： E21D21/00 ,  E21D20/02 ,  E21D20/00 ,  E21D21/02 ,  E02D5/80 ,  F16B13/04

CPC分类号： E21D21/008 ,  E02D5/80 ,  E21D20/00 ,  E21D21/0093 ,  E21D21/02 ,  F16B13/045

摘要： Rock bolt (1) comprising at least an elongated body (4), one end of which comprises at least a first external conical portion (16) extending through at least one hole (12) in at least a cylindrical expandable body (5), the hole (12) over a section of the bore hole in the axial direction comprises an internally conical part (15) intended to cooperate with the elongate member outer conical portion (16). Upon relative movement of the elongate body (4) and the expandable body (5) in one direction expands the expandable body in the radial direction. The relative axial movement between the elongated body (4) and the expandable body (5) is provided by at least one tensioning device (7). The rock bolt comprises at least one wedge device (2), which in use of the rock bolt, is connected to the expandable body (5) hole (12) and at least partially inserted between a first portion (17) and at least a second part (18). The rock bolt further comprises at least one connecting means (21).

公开(公告)号：US20140318263A1

公开(公告)日：2014-10-30

申请号：US14126262

申请日：2011-06-13

申请人： Manchao He ,  Zhibiao Guo ,  Jiong Wang ,  Jun Yang ,  Xiaoming Sun

发明人： Manchao He ,  Zhibiao Guo ,  Jiong Wang ,  Jun Yang ,  Xiaoming Sun

IPC分类号： E21D21/02 ,  G01L5/00

CPC分类号： E21D21/02 ,  G01L5/0038 ,  G01L5/0061

摘要： A tension meter of an anchor rod with constant resistance and large deformation comprises a pull rod and a hollow jack (13). The meter further includes: a rotation device for controlling the rotation angle of the hollow jack (3); a lifter for adjusting the height of the hollow jack (13) and the rotation device; a first hydraulic pump (1) for driving the hollow jack (13), wherein the hollow jack (13) is fixed on the rotation device mounted on the lifter. The meter has a large measurement range and a high load capacity.

摘要翻译： 具有恒定阻力和大变形的锚杆的张力计包括拉杆和中空千斤顶（13）。 该仪表还包括：用于控制中空千斤顶（3）的旋转角度的旋转装置; 用于调节中空千斤顶（13）和旋转装置的高度的升降机; 用于驱动中空千斤顶（13）的第一液压泵（1），其中中空千斤顶（13）固定在安装在升降机上的旋转装置上。 仪表具有较大的测量范围和高负载能力。