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Convenient Sectional Support Method for Inclined Shaft in Mine

A convenient and analytical technology, applied in shaft equipment, shaft lining, mining equipment, etc., can solve problems such as difficulty in pumice inspection, large exposed area of ​​surrounding rock on the shaft wall, and large slump of surrounding rock on the shaft wall. The effect of large safety benefits

Active Publication Date: 2019-05-17
CHINA HUAYE GROUP
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AI Technical Summary

Problems solved by technology

The inclined chute with broken surrounding rock cannot adopt the hanging tank method and the overall sliding form process, and the surrounding rock of the well wall is exposed to a large area, it is difficult to check pumice, and the surrounding rock of the well wall is more slump

Method used

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  • Convenient Sectional Support Method for Inclined Shaft in Mine

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specific Embodiment

[0030] Such as figure 1 As shown, the height of a certain mine is 35m.

[0031] A convenient segmented support method for an inclined shaft in a mine, comprising the following steps:

[0032] (1), according to the actual construction situation, according to the existing mountain stability analysis method, the stability of the shaft wall of the chute is calculated and analyzed, and the support form is determined;

[0033] (2), at the wellhead of the inclined chute, excavate a chute connecting lane 3 every 15 meters (i.e., segmented, divided into +35m segment, +20m segment, +5m segment), the chute connecting lane 3 respectively It communicates with the inclined chute and the ground,

[0034] (3), fill the inclined chute with backfill ballast 1 until the surface of backfill ballast 1 is 2m away from the wellhead, lay planks on the upper surface of backfill ballast 1 in the well, and construction personnel step on the planks to carry out support construction operations;

[0035...

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Abstract

The invention relates to a convenient segmented support method for a mine slant chute comprising following steps: (1) the stability of a wall of the slant chute is calculated and analyzed to determine a support form according to the actual construction situation; (2) a chute link lane is dug every 15 meters downwards from the mouth of the well in the slant chute; (3) the slant chute is filled with backfill slag until the distance between the surface of the backfill slag and the well mouth is 2 meters, then wood boards are laid on the upper surface of the backfill slag inside the well and construction workers perform support construction operation sanding on the wood boards; (4) slag removal is performed in a next segmented chute link lane until the slag level inside the chute decreases by 2 meters; (5) construction workers perform the next support construction operation; (6) step (4) and (5) are repeated until the construction work is completed. The support method of the invention has the following beneficial effects: (1) the slant chute is filled with slag, slag is discharged by several times, support is performed by several times and the support circulation are continued until the slag surface level decreases to the completion of the slant chute support; (2) the safety factor is high.

Description

technical field [0001] The invention belongs to the field of energy exploitation, and in particular relates to a convenient segmented support method for inclined shafts in mines. Background technique [0002] At present, most underground mines in China are difficult to construct and support due to the broken surrounding rock. After the construction of the chute is completed, due to the broken surrounding rock during the support process, the exposed area and space of the surrounding rock on the side of the chute are relatively large, which is harmful to the operators and construction machines. , The equipment poses a security threat and is inconvenient for construction. [0003] There are many unfavorable factors during the support period, often resulting in a long construction period and many safety hazards, which are not conducive to the safe construction and production of the mine, and the stable production of various systems such as mining and dressing, and have a greater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/00E21D9/14E21F15/00E21F13/00
Inventor 李海亮吕保李振林
Owner CHINA HUAYE GROUP
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