• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A rock bolt comprises an inflatable tube (11) which has a deep longitudinal depression (12). A wire coil (20) is mounted on the tube before the bolt is inserted in the borehole. When pressurized by high pressure water the tube (11) expands and clamps the coil (20) between itself and the borehole and the tube (11) is thereby permanently anchored in the borehole. The depression (12) develops during the expansion but the coil (20) prevents full expansion of the tube (11).
    公开号:SU1255065A3
    申请号:SU823504938
    申请日:1982-10-15
    公开日:1986-08-30
    发明作者:Роберт Херрон Лорне
    申请人:Атлас Копко Актиеболаг (Фирма)；
    IPC主号:
    专利说明:

    2, An anchoring method for a bolt in which a radially stretchable tube is installed in the hole and a high-pressure fluid is fed into it, which is different before
    The invention relates to fasteners, in particular to anchoring fasteners for fastening to stone.
    A known anchor bolt, made in the form of a hollow, end-closed tube with a nozzle for supplying high pressure fluid and with a longitudinal recess, and a method of anchoring the bolt, in which a radially stretchable tube is installed in the hole and high pressure fluid is fed into it. .
    However, this technical solution does not provide sufficient quality anchoring of the bolt in the borehole and requires a larger number of bolt sizes due to the small QC of the expansion bolt.
    The purpose of the invention is to increase the reliability of anchoring.
    This goal is achieved due to the fact that in the anchor bolt, made in the form of a hollow tube, closed at the ends, with a nozzle for supplying high pressure fluid and with a longitudinal recess, a spacer in the form of a helix fixed to one of the the ends of the tube.
    According to the proposed method of bolt anchoring, in which a radially stretchable tube is installed in the hole and high-pressure fluid is fed into it, before installing the tube into the hole between the tube and the hole wall, spaced spiral expansion means is placed in the hole by fixing it at one of the ends of the tube.
    In FIG. I, the image of the anchor bolt in FIG. 2 is a sectional view in FIG. one; on fig.Z - section bb in fig .; in FIG. L — a helix in a tube inserted into the hole between the tube and the wall of the hole is placed in the form of a spiral by fixing it at one of the ends of the tube.
    free state; Fig. 5 illustrates the installation of the anchor bolt in the hole without its extension; Fig. 6 is the same in the stretched state; Fig. 7 shows the installation of the anchor bolt in the hole in the extended condition, but with a short helix; on Fig - section bb In figure 7; figure 9 - section GG in FIG. 7 ..
    0. The anchor bolt 1 for fastening to the stone contains a tube 2, made of mild steel, which has a longitudinal internal cavity 3.
    The bottom 4 of the depression is in contact with the inner surface of the tube wall.
    Two sleeves 5 and 6 are pressed at the ends of the tube and welded. The sleeve 6 is made with a flange 7 for holding the gasket 8. In the gasket there is a hole 9 through which the bolt 1 passes together with the sleeve 5. In the sleeve of the biv wall of the tube 2 there is a hole - a spout 10 for
    25 feeding a high pressure fluid into the pipe. The expansion means is made in the form of a helix 11 with fastener end 12 and is made of soft steel wire. Outside 1st diameter
    30 tube 2 and sleeve 5 is smaller than the diameter of the hole 13. The outer diameter of the spiral 11 before mounting it on the tube may be larger than the diameter of the hole 13.
    Anchoring the bolt in the borehole: 3 is as follows.
    First, the tube is passed through the opening 9 of the gasket 8 by the sleeve 5 forward, and then the spiral 11 is put on the tube, while the spiral is stretched along the tube with its outer diameter decreasing, and the fixing end 12 is led into the tube from the sleeve 5 side. .
    Outer diameter of the helix after it
    45 mounted on the tube due to the longitudinal stretching becomes smaller than the diameter of the hole 13. When assembled, the anchor bolt is placed in the hole, while the depression of the tube 3 is in the state shown in Fig. 2.
    Through the orifice 10, a high pressure fluid (usually water) is fed into the tube. The pressure of the tube wall stretches; are radially expanded. The tensile force from the tube wall is transferred to the spiral and stretches it. The tube and helix wall are stretched until the helix coils are clamped between the hole wall and the tube, and thus the anchor bolt is fixed in the hole. Before entering the high pressure medium into the tube, the cavity 3 has the shape shown in Fig. 2, during feeding the medium deforms and gradually takes on the shape shown in Fig. 3 to take part in shaping the tube wall and after removing the pressure
    Neither the cavity nor the tube walls retain, together with the helix, their extended position. The helix wire should be stretched without breakage. The contact surface of the spiral with the hole is smaller than the surface of the tube, and the walls of the tube stretch between the turns of the spiral. A spiral can be used that is shorter, not covering the entire length. tube between the sleeves, then most of the tube is free from fastening in the hole.
    Such anchor bolts can be used for certain types of stones.
    The spacer element can be made not only in the form of a spiral, it can be attached or welded to the tube, radially and axially.
    An anchor bolt is installed in the bore hole by means of a clamping means (not shown).
    This anchor bolt and the method of anchoring a bolt increase the reliability of anchoring.
    4-4
    fug.2
    /
    Phage. J
    Phie.
    13
    . P

    / Xx y
     13
    (pus.9
    Editor M. Dylyn
    Compiled by I.Prokonichev
    Tehred I. Veres Proofreader L. Pilipenko
    Order 4734/60 Circulation 777 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    权利要求:
    Claims (2)
    [1]
    1. An anchor bolt made in the form of a hollow tube closed from the ends with a pipe for supplying high pressure fluid and with a longitudinal recess, characterized in that, in order to increase the anchoring reliability, a spacer in the form of a spiral is freely placed on the outer surface of the tube fixed at one of the ends of the tube.
    [2]
    2. A method of bolt anchoring, in which a radially stretchable tube is installed in a hole and a high pressure fluid is supplied into it, which is characterized in that before installing the tube in the hole between the tube and the wall of the hole, a pre-stretched spacer is placed in the form of a spiral by fixing her at one of the ends of the tube.
    类似技术:
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    US4909673A|1990-03-20|Process and device for the injection of a slurry in the vicinity of the walls of a tubular pile driven into the ground
    KR20020087642A|2002-11-23|Inner fixing device for a tension member removetype ground anchor
    SU1102974A1|1984-07-15|Ferroconcrete spacer roof bolting
    SU1548457A1|1990-03-07|Friction-action tubular roof bolt
    SU1035170A1|1983-08-15|Apparatus for gripping, fixing and releasing the tension of reinforcements
    同族专利:
    公开号 | 公开日
    NO823460L|1983-04-20|
    EP0077762A2|1983-04-27|
    AU552242B2|1986-05-22|
    ZA827161B|1983-10-26|
    EP0077762A3|1983-08-31|
    BR8206034A|1983-09-13|
    FI823486A0|1982-10-13|
    JPS5880099A|1983-05-14|
    ES275496Y|1984-10-01|
    SE8106165L|1983-04-20|
    ES275496U|1984-02-16|
    US4511289A|1985-04-16|
    FI823486L|1983-04-20|
    AU8943982A|1983-04-28|
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    SE7711060L|1977-10-03|1979-04-05|Atlas Copco Ab|WAY TO INFORM A BOLT IN A DRILL HALL|
    SU802554A1|1979-02-23|1981-02-07|Восточный Научно-Исследователь-Ский Горнорудный Институт|Rod-type roof support|
    SE427764B|1979-03-09|1983-05-02|Atlas Copco Ab|MOUNTAIN CULTURAL PROCEDURES REALLY RUCH MOUNTED MOUNTAIN|
    GB2073283A|1980-02-12|1981-10-14|Deimold R|Rock bolting|SE457894B|1985-06-17|1989-02-06|Atlas Copco Ab|MAKE STABILIZING MOUNTAINS|
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    SE8605408D0|1986-12-16|1986-12-16|Atlas Copco Ab|METHOD OF STABILIZING A ROCK STRUCTURE AND STABILIZING THEREFOR|
    GB2206390A|1987-07-02|1989-01-05|Coal Ind|Deformable rock bolt|
    JPH0296100A|1988-10-03|1990-04-06|Kingo Kamo|Underground space constructing method and lock bolt to be used for its execution|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8106165A|SE8106165L|1981-10-19|1981-10-19|PROCEDURE FOR MOUNTAIN AND MOUNTAIN|
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