公开(公告)号：US5385433A

公开(公告)日：1995-01-31

申请号：US156066

申请日：1993-11-22

申请人： Frank Calandra, Jr. ,  John C. Stankus ,  Eugene H. Stewart ,  Dominic Cricelli

发明人： Frank Calandra, Jr. ,  John C. Stankus ,  Eugene H. Stewart ,  Dominic Cricelli

IPC分类号： E21D11/00 ,  E21D21/00 ,  F16B43/00 ,  F16B43/02

CPC分类号： F16B43/00 ,  E21D11/006 ,  E21D21/0086 ,  F16B2043/008

摘要： An elongated channel beam for supporting the surface of an underground rock formation includes a base portion with a bearing surface for contacting the rock strata and an opposite surface having a longitudinally extending central rib and flanged edges for resisting deflection and bending of the channel beam under the load of the rock strata. A plurality of openings spaced a preselected distance apart extend through the central rib. A bearing plate is positioned in overlying abutting relation with each opening in the channel beam. The bearing plate includes embossed areas and longitudinally flanged edges that overlie in abutting relation the central rib and flanged edges of the channel beam. The bearing plate is restrained from longitudinal and lateral movement on the channel beam. Anchor bolts extend through the aligned openings in the bearing plate and channel beam into bore holes drilled in the rock formation. Tightening the anchor bolt compresses the bearing plate against the channel beam with the compressive forces distributed over the surface of the bearing plate and transmitted throughout the channel member to support the rock formation.

摘要翻译： 用于支撑地下岩层的表面的细长的通道梁包括具有用于接触岩层的支承表面的基部和具有纵向延伸的中心肋和法兰边的相对表面，用于抵抗在下面的通道梁的偏转和弯曲 岩层的载荷。 间隔开预定距离的多个开口延伸穿过中央肋。 轴承板与通道梁中的每个开口处于上下邻接的位置。 轴承板包括压花区域和纵向凸缘边缘，其与通道梁的中心肋和法兰边缘相邻地邻接。 轴承板在通道梁上被限制在纵向和横向运动。 锚固螺栓延伸穿过轴承板中的对齐开口和通道梁进入钻岩中钻孔。 紧固锚定螺栓将承载板压靠在通道梁上，压缩力分布在承载板的表面上并传递通过通道构件以支撑岩层。

公开(公告)号：US4652178A

公开(公告)日：1987-03-24

申请号：US890977

申请日：1986-07-30

申请人： Richard Kates ,  Mario Chyb

发明人： Richard Kates ,  Mario Chyb

IPC分类号： E21D21/00

CPC分类号： E21D21/0086

摘要： The plate has the plate material in-turned, about the central, roof bolt or friction rock stabilizer aperture, to form a tubular wall thereat. Accordingly, the rim of the aperture is made stronger and the plate, therefore, is capable of supporting a considerable loading.

摘要翻译： 该板具有围绕中心，屋顶螺栓或摩擦岩石稳定器孔的转盘，以在其上形成管状壁。 因此，孔的边缘变得更强，因此，板能够支撑相当大的载荷。

公开(公告)号：US4596496A

公开(公告)日：1986-06-24

申请号：US643042

申请日：1984-08-22

申请人： Gary D. Tyrell ,  Robert W. Hill ,  Jerry Frease

发明人： Gary D. Tyrell ,  Robert W. Hill ,  Jerry Frease

IPC分类号： E21D11/00 ,  E21D21/00 ,  E21D20/00

CPC分类号： E21D11/006 ,  E21D21/0086

摘要： A truss system is disclosed for use in supporting the roof of a mine. The system comprises an assemblage of elements which permit more rapid and efficient installation than prior art truss systems which have generally been installed as a secondary operation, after the standard, required bolting pattern is in place. The present system, on the other hand, may be installed concurrently with and in fact may become part of, the standard bolting system. The system includes a pair of roof bolts installed in conventional fashion in drill holes extending at divergent angles into the mine roof on opposite sides of the mine opening. The bolts each extend through aligned openings in a bearing support plate and a separate angle block having a curved outer surface. The closed ends of a U-bolt, having a curvature corresponding to the surface of the angle block, extend around the two blocks with the open, threaded ends of the U-bolts facing one another. A pair of blocks having three parallel openings therethrough are placed on the two U-bolts, the open ends thereof extending through the outer openings, and secured with nuts. A rod threaded at both ends, or a plurality of such rods joined by a threaded coupler, extends through the center opening of the block, thereby joining the two U-bolts, and is secured by nuts on each end. The truss is tensioned to a desired degree by threaded advance of the nuts on the U-bolts and/or coupling rods. The angle blocks are disclosed in two embodiments, the first having a planar surface engaged by the bolt head or a flat washer, and the second having an inwardly curved cavity surrounding the opening through which the bolt passes and is engaged by a mating washer on the bolt head. The design of the second embodiment permits considerable variation in the relative angular orientations of the truss elements.

摘要翻译： 公开了一种用于支撑矿山屋顶的桁架系统。 该系统包括组件，其允许比现有技术的桁架系统更快速和有效的安装，这些桁架系统通常被安装为辅助操作，在标准的所需螺栓模式就位之后。 另一方面，本系统可以与标准螺栓系统同时安装并且实际上可以成为标准螺栓系统的一部分。 该系统包括以常规方式安装在钻孔中的一对屋顶螺栓，其以发散角延伸到矿井开口相对侧的矿顶。 螺栓各自延伸穿过轴承支撑板中的对准开口和具有弯曲外表面的单独角度块。 具有对应于角块的表面的曲率的U形螺栓的封闭端在两个块之间延伸，其中U形螺栓的敞开的螺纹端彼此面对。 一对具有三个平行开口的块被放置在两个U形螺栓上，其开口端延伸穿过外部开口并用螺母固定。 在两端螺纹连接的杆或通过螺纹联接器连接的多个这样的杆延伸穿过块的中心开口，从而接合两个U形螺栓，并且在每个端部上由螺母固定。 通过将螺母螺纹推进U形螺栓和/或联接杆上来将桁架张紧到所需的程度。 在两个实施例中公开了角块，第一具有由螺栓头或平垫圈接合的平面，并且第二具有围绕开口的向内弯曲的空腔，螺栓穿过该开口，并且通过其上的配合垫圈接合 螺栓头。 第二实施例的设计允许桁架元件的相对角度取向的相当大的变化。

公开(公告)号：US4445808A

公开(公告)日：1984-05-01

申请号：US300773

申请日：1981-09-10

申请人： Satya P. Arya

发明人： Satya P. Arya

IPC分类号： E21D21/00

CPC分类号： E21D21/0086

摘要： The mine roof plate comprises a rigid, sheet steel element of substantially uniform thickness having a domed section which reinforces the plate against distortion. The domed section is at least partially of generally quadrilateral configuration, having a substantially square base and defines an elevated section having an aperture therein circumscribed by a generally planar land surface. The periphery of the plate is of planar, rectangular configuration and disposed in spaced parallel relationship to the elevated section. The configuration of the domed section, in having right-angular corner portions, defines thereby reinforcing ribs, along the domed section, which terminate at the planar periphery of the plate.

摘要翻译： 矿顶板包括具有基本均匀厚度的刚性钢板元件，其具有拱形部分，其加强板以防止变形。 圆顶部分至少部分地具有大致四边形构造，具有基本上为方形的基部，并且限定了具有由大致平坦的平台表面限定的孔的升高部分。 板的周边是平面的，矩形构造并且与升高的部分间隔成平行的关系。 圆顶部分具有直角角部分的构型由此形成沿着终止于板的平面周边的圆顶部分的加强筋。

公开(公告)号：US4371293A

公开(公告)日：1983-02-01

申请号：US177854

申请日：1980-08-14

申请人： Raymond J. Wilcox ,  Earl W. Powers

发明人： Raymond J. Wilcox ,  Earl W. Powers

IPC分类号： E21D21/00

CPC分类号： E21D21/0086

摘要： A bearing plate for supporting a portion of a mine roof or similar surface. The bearing plate includes a substantially planar, roof-bearing portion having a roof-bearing surface. Also included is a substantially planar bolt-head bearing surface. The bolt-head bearing surface includes a concentrically located aperature adapted to receive a roof bolt having a bolt head. The bolt-head bearing surface is spaced from the planar roof-bearing portion and is substantially parallel to the roof-bearing surface. A vertical wall extends from the bolt-head bearing surface about its outer periphery. A reinforcing wall extends radially outward from the distal end of the vertical wall and merges with the roof-bearing portion. The reinforcing wall defines a first frusto-conical portion, the base of which is conterminous with the roof-bearing portion, and a second frusto-conical portion, the base of which merges with the distal end of the first frusto-conical portion. The diameter of the base of the second frusto-conical portion is less than the diameter of the distal end of the first frusto-conical portion. The roof bearing surface of the bearing plate, when in use, supports a portion of the mine roof in response to a bearing force applied to the bolt-head bearing surface by the roof bolt. Some embodiments of the subject bearing plate contain embossed reinforcing ribs and dimples in the planar bearing portion.

摘要翻译： 用于支撑矿顶或类似表面的一部分的支承板。 承载板包括具有屋顶承载表面的基本上平面的屋顶承载部分。 还包括大致平面的螺栓头支承面。 螺栓头支承表面包括适于接收具有螺栓头的顶部螺栓的同心定位的温度。 螺栓头支承表面与平面屋顶承载部分间隔开并且基本上平行于屋顶承载表面。 垂直壁从螺栓头支承表面围绕其外周延伸。 加强壁从垂直壁的远端径向向外延伸并与屋顶承载部分合并。 加强壁限定了第一截头圆锥形部分，其基部与屋顶承载部分相连，并且第二截头圆锥形部分的第二截头圆锥形部分与第一截头圆锥形部分的远端合并。 第二截头圆锥形部分的基部的直径小于第一截头圆锥形部分的远端的直径。 当使用时，承载板的屋顶支承表面响应于由顶部螺栓施加到螺栓头支承表面的承受力而支撑矿顶部的一部分。 主体承载板的一些实施例在平面轴承部分中包含压花加强肋和凹坑。

公开(公告)号：US4347020A

公开(公告)日：1982-08-31

申请号：US109189

申请日：1980-01-02

申请人： Claude C. White ,  Frederick Carr

发明人： Claude C. White ,  Frederick Carr

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

CPC分类号： E21D20/025 ,  E21D21/008 ,  E21D21/0086

摘要： A mine roof bolt assembly including a shank having anchoring means at one end for securing the shank in the back of the bore, the opposite end of the shank being threaded. A bolt head having a central bore, includes a first threaded bore portion threadedly engaged with the threaded end of the shank. A stop plug is threaded into a second threaded bore portion in the bolt head and abuts an end of the shank to initially limit penetration of the shank into the bore of the head. The bolt head is rotated by rotational means having a predetermined torque limit, moving the head longitudinally with respect to the shank, exerting a force on the stop plug which strips the threads from the second threaded bore portion, thereby permitting uninterrupted passage of the shank through the bore. A roof plate positioned on the shank between the bolt head and roof is then forced upwardly by the head into supporting engagement with the mine roof, and the predetermined torque of the rotational means is established.

摘要翻译： 一种矿山屋顶螺栓组件，其包括在一端具有锚固装置的柄，用于将柄固定在孔的后部，柄的相对端被螺纹连接。 具有中心孔的螺栓头包括与柄的螺纹端螺纹接合的第一螺纹孔部分。 止动塞被螺纹连接到螺栓头中的第二螺纹孔部分中并且抵靠柄的端部以最初限制柄部穿入头部的孔中。 螺栓头通过具有预定扭矩极限的旋转装置旋转，相对于柄纵向移动头部，在止动塞上施加力，其将线从第二螺纹孔部分剥离，从而允许柄不间断地通过柄穿过 孔。 然后，位于螺栓头部和顶部之间的柄上的顶板被头部向上推动成与矿井顶部支撑接合，并且确定了旋转装置的预定扭矩。

公开(公告)号：US4334803A

公开(公告)日：1982-06-15

申请号：US96837

申请日：1979-11-23

申请人： Patrick C. Westlake ,  Keith Fish ,  James D. Mallory

发明人： Patrick C. Westlake ,  Keith Fish ,  James D. Mallory

IPC分类号： E21D21/00 ,  E21D20/00

CPC分类号： E21D21/0086 ,  E21D21/0026

摘要： A mine roof bolt of the type used in supporting the ceiling or roofs of underground mine passages is disclosed. The mine bolt includes an elongated shaft, threaded on one end with a stop member in the form of a hemispherical head provided at the other end. A bolt head is force fitted onto the shaft into abutment with the outer stop member. Similarly, a washer is also force fitted onto the shaft and into abutment with the bolt head. An inner stop in the form of an annular bead is formed on the shaft adjacent the underside of the washer.

摘要翻译： 公开了一种用于支撑地下矿井通道天花板或屋顶的矿用屋顶螺栓。 矿用螺栓包括细长轴，其一端螺纹连接，并具有设置在另一端的半球形头部形式的止动构件。 螺栓头被强制装配到轴上以与外部止动构件邻接。 类似地，也将垫圈强制安装在轴上并与螺栓头邻接。 在邻近洗衣机下侧的轴上形成呈环形胎圈形式的内部止动件。

公开(公告)号：US4037418A

公开(公告)日：1977-07-26

申请号：US685695

申请日：1976-05-12

申请人： John I. Hannan

发明人： John I. Hannan

IPC分类号： E21D21/00 ,  F16B13/00 ,  F16B29/00

CPC分类号： E21D21/0086 ,  F16B13/00

摘要： A generally flat rectangular bearing plate particularly adapted to cooperate with a plurality of other such plates in supporting an underground mine roof. One face of the plate defines a support or bearing surface and a major embossed area extends outwardly from and generally longitudinally along the other face for purposes of increasing the support strength of the plate. The top or outermost wall of the major embossed area tapers outwardly relative to the one face from a minimum height at opposed end areas adjacent the lengthwise ends of the plate to maximum height adjacent the midpoint of the plate. The opposed side walls of the major embossed areas diverge outwardly relative to each other from each of the opposed end areas toward the transverse axis of the plate. A recessed area having a generally flat bottom wall is provided at substantially the midpoint of the plate and which recessed area extends inwardly from the major embossed area top wall area back toward the support or bearing surface. The bottom wall is inwardly recessed a distance sufficient to conceal the head of an elongated bolt member received through an opening in the bottom wall for purposes of rigidly affixing the bearing plate to a mine roof. A minor embossed area extending outwardly from the major embossed area and surrounding the recessed area may also be included to add even further structural strength to the plate. Loop-like hangers may be conveniently included to facilitate the stringing of electrical cables, telephone wires and the like through the mine shaft once the plate has been installed.

摘要翻译： 特别适用于与多个其它这样的板配合以支撑地下矿井顶板的大致扁平的矩形支承板。 板的一个表面限定了支撑或支承表面，并且主压花区域从另一个面向外延伸并且大致纵向延伸，目的是增加板的支撑强度。 主压花区域的顶部或最外壁相对于一个面从相邻端部区域的最小高度向外逐渐向外延伸，最靠近板的中心点的最大高度。 主压花区域的相对侧壁相对于彼此相对的端部朝向板的横向轴线向外分开。 大致平坦的底壁的凹陷区域设置在板的中间点处，并且该凹陷区域从主压花区域顶壁区域向内朝向支撑或支承表面向后延伸。 底壁向内凹入足够的距离，以隐藏通过底壁中的开口接收的细长螺栓构件的头部，用于将支承板刚性地固定到矿顶。 还可以包括从主压花区域向外延伸并且围绕凹陷区域的小压花区域以为板增加甚至更多的结构强度。 可以方便地包括环形衣架，以便一旦安装了板，便于电缆，电话线等穿过矿井。

公开(公告)号：US3464308A

公开(公告)日：1969-09-02

申请号：US3464308D

申请日：1968-03-05

申请人： DOHMEIER HANS OTTO

发明人： DOHMEIER HANS O

IPC分类号： F16B7/00 ,  E21D21/00 ,  F16B13/06 ,  F16B37/00 ,  F16B17/00 ,  F16B39/22

CPC分类号： E21D21/0086 ,  Y10S411/918 ,  Y10S411/96

公开(公告)号：US20230374904A1

公开(公告)日：2023-11-23

申请号：US18320255

申请日：2023-05-19

申请人： F. M. LOCOTOS CO., INC.

发明人： Frank M. Locotos ,  Robert G. Locotos

IPC分类号： E21D21/00 ,  E21D21/02

CPC分类号： E21D21/0086 ,  E21D21/02

摘要： A component and method for evaluating load at a mine roof. An embossed bearing plate and a reinforcing washer are combined to thereby form a bearing system, wherein the bearing plate is a grade 2 plate (“x−1”), the bearing plate including a back surface which is adapted to contact a mine roof, an opposite surface and an aperture through which a shaft portion of a bolt can extend, the reinforcing washer including a rigid member having a first surface shaped to contact and complement the opposite surface of the bearing plate, a second opposing surface and a washer hole for alignment with the aperture through which the shaft can extend; driving a bolt with the shaft through the bearing system into a location of the mine roof, and, inspecting a curl of the grade 2 plate, wherein the curl and uniformity thereof is indicative of a load of around 20,000 pounds at the location.