公开(公告)号：US20180195389A1

公开(公告)日：2018-07-12

申请号：US15741259

申请日：2016-08-31

申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY

发明人： Shengqi YANG ,  Miao CHEN ,  Yuanchao ZHANG

IPC分类号： E21D21/00

CPC分类号： E21D21/00 ,  E21D15/00 ,  E21D21/0086

摘要： Disclosed are an anti-spalling blocking bar for a large cross-section coal gallery excavation work surface and a supporting method. The anti-spalling blocking bar comprises a blocking bar (1) and a support bar (7). Both a top portion of the blocking bar and an end of the support bar are provided with screw holes (2). A steel peg (5) is provided on an outer side of a bottom portion of the blocking bar. Locking teeth (6) is provided on an inner side of a mid-upper portion of the blocking bar, and a locking catch (8) is provided on one end of the support bar. The blocking bar and support bar are secured, using the screw hole and a screw bolt, to a temporary support device. After removing coal, a tool is used to hammer the blocking bar so as to wedge the steel peg thereof into a coalface (13). The locking catch of the support bar is held within the locking teeth to support a coal heading. After use, the blocking bar and support bar can be retrieved and suspended, using a hanging device, from the temporary support device. The anti-spalling blocking bar offers the advantages of easy installation, good support, reusability, convenient storage, and the like. The invention reduces the probability of personnel injury caused by coal loosening and falling from the heading, shortens the time for establishing coal heading support, and enhances a safety index and an excavation speed of a large cross-section coal gallery excavation work surface.

公开(公告)号：US20150275667A1

公开(公告)日：2015-10-01

申请号：US14443467

申请日：2013-11-18

申请人： SANDVIK INTELLECTUAL PROPERTY AB

发明人： Alain Comorge ,  Anssi Kouhia ,  Mieczyslaw Rataj ,  Maunu Manttari

IPC分类号： E21D20/00 ,  E21D20/02 ,  E21D21/00

CPC分类号： E21D20/006 ,  E21D20/003 ,  E21D20/021 ,  E21D20/028 ,  E21D21/0026 ,  E21D21/006 ,  E21D21/0086 ,  E21D21/0093

摘要： A machine for installing cable bolts, the machine including a drill for drilling a bore into a rock wall, a grout delivery system for delivering grout into the bore, a cable dispensing arrangement for dispensing cable into the bore, an attachment device for attaching a bore anchor to the leading end of the cable prior to the cable being fed into the bore, and a severing device for severing the cable to form a trailing end thereof. A method of installing a cable rock bolt into a bore is also provided.

摘要翻译： 一种用于安装电缆螺栓的机器，该机器包括用于将钻孔钻入岩壁中的钻头，用于将灌浆输送到孔中的浆料输送系统，用于将电缆分配到孔中的电缆分配装置，用于附接孔 在电缆被馈送到孔中之前锚固到电缆的前端，以及用于切断电缆以形成其尾端的切断装置。 还提供了将电缆岩石螺栓安装到孔中的方法。

公开(公告)号：US08894328B2

公开(公告)日：2014-11-25

申请号：US13423173

申请日：2012-03-17

申请人： Louie Zeitler ,  Gregory Earl Smith

发明人： Louie Zeitler ,  Gregory Earl Smith

IPC分类号： E21D21/00 ,  E21D20/00

CPC分类号： E21D21/004 ,  E21D20/00 ,  E21D21/008 ,  E21D21/0086

摘要： A mine roof bolt assembly (10) comprises a bolt (20), a bearing plate (30), and a washer (40) situated between a ledge (24) of the bolt (20) and a lower face (33) of the bearing plate (30). The washer (40) includes an elbow (42), a radially inner portion (43) extending upward from the elbow (42), and a radially outer portion (44) sloping upward from the elbow (42). The elbow (42) engages an inboard location of the bolt ledge (24) so as to reduce stress on the flange (23) of the bolt (20).

摘要翻译： 一种矿山屋顶螺栓组件（10）包括螺栓（20），支承板（30）和位于螺栓（20）的凸缘（24）和下端面（33）之间的垫圈（40） 承载板（30）。 垫圈（40）包括弯头（42），从弯头（42）向上延伸的径向内部部分（43）和从弯头（42）向上倾斜的径向外部部分（44）。 肘部（42）接合螺栓凸缘（24）的内侧位置，以便减小螺栓（20）的凸缘（23）上的应力。

公开(公告)号：US20140079492A1

公开(公告)日：2014-03-20

申请号：US14006846

申请日：2012-03-23

申请人： Martin Mayrhofer

发明人： Martin Mayrhofer

IPC分类号： E02D5/80

CPC分类号： E02D5/801 ,  E02D7/22 ,  E21D21/0086 ,  F16B43/02

摘要： Alpine anchor for anchoring threaded rods in soil or rock, with a metal base plate having a number of threaded bores which are distributed about the circumference and into which the threaded rods can be screwed with an assembly machine, wherein at least one plug coupling is arranged between the stationary part of the assembly machine and the base plate.

摘要翻译： 用于将螺杆锚固在土壤或岩石中的高山锚杆，具有多个螺纹孔的金属基板，其围绕圆周分布并且螺杆可以与组装机器一起旋入，其中布置至少一个插塞联接器 在组装机的固定部分和基板之间。

公开(公告)号：US20090191007A1

公开(公告)日：2009-07-30

申请号：US12117301

申请日：2008-05-08

申请人： Ben L. Seegmiller

发明人： Ben L. Seegmiller

IPC分类号： E21D20/00

CPC分类号： E21D21/008 ,  E21D21/006 ,  E21D21/0086

摘要： The present invention is directed to a device and assembly for the anchoring and tensioning of cable bolts used in earthen formations to stabilize the earthen structures to prevent or minimize the caving in or sluffing-off of the earthen structure. The new invention presents an integral wedge barrel and threaded sleeve which can be turned to facilitate both the mixture of cementing resins and the physical tensioning of an anchored cable and which can reduce or prevent undesirable twisting of the cable during tensioning.

摘要翻译： 本发明涉及一种用于锚固和张紧用于土层中的电缆螺栓的装置和组件，用于稳定土层结构以防止或最小化土层结构的塌陷或塌落。 新发明提供了一体的楔形筒和螺纹套筒，其可以转动以便于粘合树脂的混合物和锚固电缆的物理张紧，并且可以减少或防止在张紧期间电缆的不期望的扭转。

公开(公告)号：US20090180840A1

公开(公告)日：2009-07-16

申请号：US12008500

申请日：2008-01-11

申请人： Matthew S. Slatter ,  Roland C. Walker

发明人： Matthew S. Slatter ,  Roland C. Walker

IPC分类号： E21D21/00

CPC分类号： E21D21/0086

摘要： A new bolt head design is disclosed and claimed. The bolt head has a radius between the shaft and the first side of a washer which spreads the shaft load more evenly to the washer. A concave dome is located between the second side of the washer and the driver of the head. These elements more evenly distribute the load, increase the bolt head strength and help prevent the washer, shaft and washer driver interfaces from failing when the bolt is loaded either in a linear or non-linear fashion.

摘要翻译： 新的螺栓头设计被公开并要求保护。 螺栓头具有在轴和垫圈的第一侧之间的半径，其将轴负载更均匀地扩展到垫圈。 凹面圆顶位于洗衣机的第二侧和头部的驱动器之间。 这些元件更均匀地分配负载，增加螺栓头强度，并有助于防止当螺栓以线性或非线性方式装载时，垫圈，轴和垫圈驱动器接口发生故障。

公开(公告)号：US06957931B2

公开(公告)日：2005-10-25

申请号：US10619232

申请日：2003-07-14

申请人： Bert W. Slater

发明人： Bert W. Slater

IPC分类号： E21D21/00 ,  E21D21/02 ,  F16B43/00

CPC分类号： E21D21/0086

摘要： Roof bolt bearing plate and method are disclosed for use in underground mining operations. A dome-shaped roof bolt bearing plate and method support the roof in a mine. The bearing plate is round or elliptical different from conventional commercial roof support devices. No dangerous edges and corners protrude downward. A recessed center is lower than the outer rim. A thin outer rim conforms to roof irregularities. The roof bolt bearing plate and method have been found to provide important advantages over conventional commercial roof support devices, including (1) concealing the head of the roof bolt to a preferred degree, (2) conforming to the roof's irregularities which will cause causing the plate to remain tight, (3) provide readability so the installer can to determine the quality and integrity of installation and anchorage, and (4) compressing the lower strata of the mine roof, thereby and creating a beam like support for the upper layers of the mine roof.

摘要翻译： 公开了用于地下采矿作业的屋顶螺栓承载板和方法。 一个圆顶形屋顶螺栓支撑板和方法支撑矿山的屋顶。 轴承板是圆形或椭圆形，不同于传统的商业屋顶支撑装置。 没有危险的边缘和角落向下突出。 凹进的中心比外缘低。 薄的外缘符合屋顶不规则。 已经发现屋顶螺栓轴承板和方法提供了比传统的商业屋顶支撑装置重要的优点，其包括（1）以优选的程度隐藏屋顶螺栓的头部，（2）符合屋顶的不规则性，这将导致 （3）提供可读性，使安装人员能够确定安装和锚固的质量和完整性;（4）压缩矿顶下层，从而形成一个支撑梁，用于上层 矿顶。

公开(公告)号：US20040018062A1

公开(公告)日：2004-01-29

申请号：US10457840

申请日：2003-06-09

发明人： Frank Calandra JR. ,  Jack R. Eaton ,  John C. Stankus ,  Eugene H. Stewart ,  Demrey G. Brandon

IPC分类号： E02D003/02

CPC分类号： E21D11/155 ,  E21D21/0086 ,  Y10T428/24653

摘要： Disclosed is a mine roof and rib support system generally including a square bearing plate. A through hole is positioned near a center portion of the square bearing plate. A peripheral section at least partially circumscribes the bearing plate. In between the through hole and the peripheral section is a rib member area. The rib member area may include two rib members with a convex cross-section connected by a substantially linear surface member disposed between the two rib members, two or more concave ribs with a substantially linear surface member disposed between the two rib members, or two substantially linear surfaces connected by a convex rib member. A safety edge surrounds the square bearing plate. The safety edge may be a rolled edge, a looped edge, a folded edge, or another comparable edge. Also disclosed is a method for making the mine roof and rib support system.

摘要翻译： 公开了一种通常包括方形轴承板的矿井屋顶和肋支撑系统。 通孔位于方形轴承板的中心部分附近。 外围部分至少部分地包围支承板。 在通孔和周边部分之间是肋构件区域。 肋构件区域可以包括两个肋构件，其具有通过布置在两个肋构件之间的基本线性的表面构件连接的凸形横截面，两个或更多个凹肋，其具有设置在两个肋构件之间的基本线性的表面构件， 通过凸肋构件连接的线性表面。 安全边缘围绕方形轴承板。 安全边缘可以是卷边，环形边缘，折叠边缘或另一相当的边缘。 还公开了一种用于制造矿顶和肋支撑系统的方法。

公开(公告)号：US06682268B2

公开(公告)日：2004-01-27

申请号：US09944666

申请日：2001-08-31

申请人： Roy Lee Robertson, Jr. ,  James Earl, Jr.

发明人： Roy Lee Robertson, Jr. ,  James Earl, Jr.

IPC分类号： E21D2100

CPC分类号： E21D21/0093 ,  E21D21/0086

摘要： A method for providing secondary roof support in an underground mine such as to reduce the hazard of localized crumbling or deterioration of a mine roof. The apparatus generally comprises a slightly convex steel plate, crafted to cradle a roof bolt and which is supported by the base plate of the primary roof control system. The apparatus is utilized with standard primary roof bolt systems. By applying an upward pressure on the roof and effecting a larger coverage area for each roof bolt, the opportunity for drawrock separation to begin is reduced, and the exposure of the elements to drawrock strata in the vicinity of the bolt is eliminated. The method includes the step of utilizing the apparatus, with convex portion of the lateral plate facing upwards, before the placement of the base plate and roof bolt.

摘要翻译： 一种在地下矿井中提供二次屋顶支撑的方法，以减少局部破碎或矿顶恶化的危险。 该装置通常包括稍微凸起的钢板，其被制造成摇摆屋顶螺栓，并且由主屋顶控制系统的基板支撑。 该设备与标准的主屋顶螺栓系统一起使用。 通过在屋顶施加向上的压力并对每个屋顶螺栓施加更大的覆盖面积，减少了开始分离的机会，并且消除了元件暴露于螺栓附近的拉筋层。 该方法包括在放置基板和车顶螺栓之前利用该装置的侧板凸起部分朝上的步骤。

公开(公告)号：US20020064429A1

公开(公告)日：2002-05-30

申请号：US09992415

申请日：2001-11-23

发明人： Roy Lee Robertson JR.

IPC分类号： E21D021/00

CPC分类号： E21D21/0086 ,  E21D21/008 ,  E21D21/0093

摘要： This invention is directed to a method of re-tightening or re-tensioning a roof bolt in an underground mine. Specifically, the method and apparatus claimed herein serves the purpose of enabling the operator to place tension between the head of a permanent, epoxy-secured, roof bolt and the base plate of a standard roof bolt system used to effect primary roof support in an underground mine. The method and apparatus have particular utility in mines in which drawrock or localized crumbling of shale of soft rock material is encountered as the first layer of material in the mine roof. The apparatus consists of a slotted screw member and slotted nut combination. A second embodiment of the apparatus is comprised of a slotted nut, slotted screw member and one or more slotted spacers to be oriented between the roof bolt head and base plate. The members are turned with the appropriate tightening tool such as to apply pressure between the base plate and roof bolt head, thereby re-tensioning the roof bolt. The method of the present invention includes the steps outlined above for placement and use of the apparatus in an underground mine.

摘要翻译： 本发明涉及一种在地下矿井中重新收紧或重新张紧屋顶螺栓的方法。 具体地说，本文所要求的方法和装置的目的是使操作者能够在永久的，环氧树脂固定的屋顶螺栓的头部和用于在地下部分中实现主要屋顶支撑的标准屋顶螺栓系统的基板之间施加张力 矿。 该方法和装置在矿山中具有特殊的用途，其中遇到作为矿顶中第一层材料的软岩材料的页岩或局部破碎页岩。 该装置由开槽螺钉构件和开槽螺母组合构成。 该装置的第二实施例包括开槽螺母，开槽螺纹构件和一个或多个开槽的间隔件，其定向在屋顶螺栓头部和底板之间。 这些构件用适当的紧固工具转动，例如在基板和车顶螺栓头之间施加压力，由此重新张紧车顶螺栓。 本发明的方法包括上述用于在地下矿井中放置和使用该装置的步骤。