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    Measuring anchors for use in mining
    71.
    发明授权
    Measuring anchors for use in mining 失效
    用于采矿的测量锚

    公开(公告)号：US3894428A

    公开(公告)日：1975-07-15

    申请号：US43901774

    申请日：1974-02-20

    Applicant: BERGWERKSVERBAND GMBH

    Inventor： SCHUERMANN FRITZ ,  MULLER HERBERT ,  BODDICKER HORST ,  HEUSINGER PETER-PAUL

    IPC: E02D1/08 ,  G01B7/16 ,  G01N33/24 ,  G01V9/00 ,  G01B5/30

    CPC classification number: G01V9/00 ,  E02D1/08 ,  G01B7/18 ,  G01B2210/66

    Abstract: A measuring anchor for measuring changes in the area surrounding a mining cavity constitutes an elongate rod-like member rigidly embedded by adhesive in a bore hole of such cavity. On the external surface of the rod-like member are diametrically opposed external recessed portions, such as grooves or flattened portions. Arranged respectively in axially spaced intervals on the outer side of the rod-like member and in pairs opposite each other in the recessed portions are sensors constituting strain gages for measuring changes in the strata surrounding same in several planes distributed over the length of the member. Strips cover the strain gages and are shaped to conform to that of the rod-like member. The sensors have leads which extend to the outside.

    Abstract translation: 用于测量采矿腔周围区域变化的测量锚构成一个细长的杆状构件，其通过粘合剂刚性地嵌入在该空腔的钻孔中。 在杆状构件的外表面上是与凹槽或扁平部分的径向对置的外凹部。 分别在棒状构件的外侧上并且在凹部中彼此相对成对地分别布置的传感器是构成应变片的传感器，用于测量在构件的长度上分布的多个平面中围绕它们的层的变化。 条带覆盖应变片并且成形为与杆状构件的形状一致。 传感器具有延伸到外部的引线。

    Device for measuring changes in converging rock formations in a mining cavity
    72.
    发明授权
    Device for measuring changes in converging rock formations in a mining cavity 失效
    用于测量矿井中会聚岩层变化的装置

    公开(公告)号：US3894427A

    公开(公告)日：1975-07-15

    申请号：US43901674

    申请日：1974-02-20

    Applicant: BERGWERKSVERBAND GMBH

    Inventor： SCHUERMANN FRITZ ,  MULLER HERBERT ,  BODDICKER HORST ,  HEUSINGER PETER-PAUL

    IPC: E02D1/08 ,  G01B7/16 ,  G01N33/24 ,  G01V9/00 ,  G01B5/30

    CPC classification number: G01V9/00 ,  E02D1/08 ,  G01B7/18 ,  G01B2210/66

    Abstract: A device for measuring changes in rock formations in a mining cavity employing elongate tubes fixed by adhesive in bore holes in opposite walls so that they align axially. The tubes are measuring anchors and each contains a series of axially spaced sensors in the form of strain gages in external recessed portions. Fixed in each tube is a thin tube and these terminate at their outer ends in a convergence transmitter unit, suitable connections being established between the gages and the transmitter unit. Perpendicular to this arrangement is a similar assembly of measuring anchors, thin tubes and a convergence transmitter unit so that convergence of the formation in a mining cavity and elongation values can be determined.

    Abstract translation: 用于测量采矿腔中岩层变化的装置，其采用由粘合剂在相对的壁中的孔中固定的细长管，使得它们在轴向对准。 管是测量锚，每个都包含一系列在外部凹陷部分中应变计形式的轴向间隔的传感器。 固定在每个管中是细管，并且它们在其外端终止于会聚发射器单元中，在量规和发射器单元之间建立适当的连接。 垂直于这种布置的是测量锚固件，细管和收敛发射器单元的类似组件，使得可以确定采矿腔中的地层的收敛和伸长值。

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