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Advance support structure of large dip angle coal mining face

A technology of coal mining face and advanced support, applied in mining equipment, earthwork drilling, shaft equipment and other directions, can solve the problem of not designing an economical and practical advanced support method, etc., to reduce the effective cross-sectional area, save time, The effect of reducing labor intensity

Active Publication Date: 2019-05-28
四川川煤华荣能源有限责任公司花山煤矿
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Problems solved by technology

[0002] At present, single hydraulic props and advanced hydraulic supports are mainly used for the advanced support of large-inclination coal mining faces, but these are all advanced support methods that follow the near-horizontal coal mining face, and there is no economical design based on the characteristics of large-inclination coal seams. Practical advance support method

Method used

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  • Advance support structure of large dip angle coal mining face
  • Advance support structure of large dip angle coal mining face

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 , figure 2 The advanced support structure of the large-inclination coal mining face shown includes a special-shaped section 9, including a top plate 16 on the top of the special-shaped section 9 and an upper side plate 17 arranged on the upper side of the side wall of the special-shaped section 9, wherein the The roof 16 is fixedly connected to the anchor cable anchor section 1 through the reinforced anchor cable 4 and the middle anchor cable 8, and the roof 16 is also fixedly connected to the anchor anchor section 2 through the roof anchor 3; It is fixedly connected with the upper anchor cable 11, wherein the top plate 16 and the upper side plate 17 meet at the upper side line 13 on the top plate and the roadway.

[0014] In the actual construction, it is first necessary to design the special-shaped cross-sections of the two lanes of the hig...

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Abstract

The invention relates to the field of coal mining methods, in particular to a forepoling structure of a large-dip-angle coal face. The forepoling structure of the large-dip-angle coal face is safe and efficient. According to the technical scheme, the forepoling structure of the large-dip-angle coal face comprises a special-shaped section, a top plate and an upper edge plate; the top plate is arranged at the top of the special-shaped section, and the upper edge plate is arranged on one side of the upper edge of the side wall of the special-shaped section; the top plate is fixedly connected with an anchor cable anchoring segment through a reinforcing anchor cable and a middle anchor cable and also fixedly connected with an anchor rod anchoring segment through a top plate anchor rod; the upper edge plate is fixedly connected with an upper edge anchor cable through an upper edge anchor rod; the top plate and the upper edge plate intersest at the surface intersection line between the top plate and the upper edge of a roadway. The method creates more favorable conditions for high yield and high efficiency and is particularly suitable for the forepoling structure of the large-dip-angle coal face.

Description

technical field [0001] The invention relates to the field of coal mining methods, in particular to an advanced support structure for a coal mining face with a large dip angle. Background technique [0002] At present, single hydraulic props and advanced hydraulic supports are mainly used for the advanced support of large-inclination coal mining faces, but these are all advanced support methods that follow the near-horizontal coal mining face, and there is no economical design based on the characteristics of large-inclination coal seams. Practical advance support method. The single hydraulic prop is used together with other equipment as advance support, which has the characteristics of high labor intensity and small safety factor; the advance hydraulic support is used as advance support, which occupies a large space, which not only increases the cost of excavation, but also is not conducive to comprehensive The transportation of mining equipment has the characteristics of la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/00E21D20/00
CPCE21D11/00E21D20/00
Inventor 杨磷
Owner 四川川煤华荣能源有限责任公司花山煤矿
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