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Crossheading large cross section super-high section roof contact method and contact roof

A super-high-section, large-section technology, applied in the direction of supporting the top beam of the mine roof, earthwork drilling, mining equipment, etc., can solve the problems of lack of effective measures and achieve the effect of improving the safety factor

Inactive Publication Date: 2019-02-15
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of effective measures about connecting the roof in the prior art

Method used

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  • Crossheading large cross section super-high section roof contact method and contact roof

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Embodiment Construction

[0018] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0019] Such as figure 1 As described, a method for connecting the superelevation section with a large cross-section along the trough includes the following steps:

[0020] First lay three rows of anchor cables 1 along the center line of the trough and both sides of the center line. The distance between the anchor cables 1 on both sides and the center line and the side is the same, and the exposed length of the anchor cables 1 is set according to the height of the trough. Put the I-beam 2 with eyelets across multiple rows of anchor cables 1 along the width direction of the groove, the end of the anchor cable 1 passes through the eyeholes on the I-beam 2, and use the rope clamp 3 to limit the I-beam 2 On the anchor cable 1, the I-beam ...

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Abstract

The invention provides a crossheading large cross section super-high section roof contact method and a contact roof. The method comprises the following steps that a plurality of rows of anchor cablesare arranged along the middle line of a crossheading and on both sides of the center line, and the distance between the anchor cables on both sides and the center line and a wall part is consistent; I-shaped steel with eyelets is straddled the rows of anchor cables in the width direction of the crossheading, ends of the anchor cables penetrate through the eyelets of the I-shaped steel, and the I-shaped steel is limited to the anchor cables by fixing pieces; the I-shaped steel is hung by crossheading top steel wires; one ends of the I-shaped steel on coal walls on two sides extend into the coalwalls, and the other ends of the I-shaped steel are butt-jointed to another I-shaped steel; and filling materials are positioned above the I-shaped steel for tight filling. The method has the advantages that a cross beam is fixed by the steel wires and the fixing pieces, the cross beam is filled tightly, and therefore the roof contact is firmer and more stable, mining safety factor of the sectionis improved, and a guarantee is provided for the normal mining of the working face.

Description

technical field [0001] The invention relates to the technical field of advanced support under the mine, in particular to a method for connecting the roof of a large cross-section super-elevation section along a trough and the roof connection method. Background technique [0002] The local area of ​​the two lanes along the channel of the fully mechanized mining face is super high, which cannot meet the support height of the advanced support or single body, and the area needs to be connected to the roof. In the prior art, there is a lack of effective measures about the top connection. Contents of the invention [0003] The technical problem to be solved by the invention is how to improve the reliability of the top connection. [0004] The present invention solves the above technical problems through the following technical solutions: [0005] A method for connecting a super-elevation section with a large cross-section along the trough, comprising the following steps: [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D17/01E21D17/10E21D20/00
CPCE21D17/01E21D17/10E21D20/00
Inventor 常贵王康胜罗胜兵
Owner HUAINAN MINING IND GRP