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Method for underground coal mine sequential mining working face hysteresis drilling drainage

A working face and sequential technology, applied in drainage, mining equipment, earthwork drilling and mining, etc., can solve problems that affect the commissioning of the working face, long construction period, and large investment

Inactive Publication Date: 2020-03-17
SHAANXI BINCHANG WENJIAPO MINING IND CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the large investment and long construction period often affect the commissioning of the working face

Method used

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  • Method for underground coal mine sequential mining working face hysteresis drilling drainage

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Embodiment Construction

[0013] The example is a method for draining water from a lagging borehole in an underground sequential mining working face of a certain mine. The specific steps are as follows: (1) arranging the drilling site construction drilling in the adjacent working face; (2) constructing a water tank near the drilling position; (3) ) Lay out the drainage pipeline; (4) Place the water pump in the water tank and connect it with the pipeline for drainage.

[0014] The specific requirements of the step (1) are: select the place where the mining face is expected to increase the water output, arrange a drilling site, construct 7 boreholes in the drilling site, strengthen the protection of the through hole position of the mining face, and avoid mining In actual operation, methods such as erecting wooden stacks in the tunnel corresponding to the position of the through hole and hanging barbed wire at the hole are used to protect the damage caused by pressure to the borehole.

[0015] The require...

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Abstract

The invention relates to a method for underground coal mine sequential mining working face hysteresis drilling drainage. The method comprises the following specific steps of (1) arranging a drill field for constructing drilled holes near the working face; (2) constructing a water bin near the positions of the drilled holes; (3) laying a drainage pipeline; and (4) placing a water pump in the waterbin, and connecting the water pump with the pipeline for drainage. According to the method, a drainage tunnel is eliminated, the tunneling work amount and investment are reduced, and the production time of a stoping working face is shortened.

Description

technical field [0001] The invention relates to the field of coal mine mining, in particular to a method for draining water from lagging boreholes in sequential mining working faces in underground coal mines. Background technique [0002] Coal mine water damage is a major safety issue restricting coal mine mining. It is necessary to have a design that conforms to the regulations and adopt safe and reliable mining methods. Most mines use the method of excavating drainage lanes to solve the major water gushing problem in the mine. However, the large investment and long construction period often affect the commissioning of the working face. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for lagging borehole drainage in underground sequential mining working faces of coal mines in view of the above-mentioned deficiencies in the prior art. [0004] This method mainly adopts the construction drilling in the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F16/00
CPCE21F16/00
Inventor 刘庆利刘海江
Owner SHAANXI BINCHANG WENJIAPO MINING IND CO LTD
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