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Large-range goaf group filling method

A processing method and technology for goafs, which are applied in filling materials, mining equipment, earthwork drilling, etc., can solve the problems of complex filling process, high filling cost, low filling efficiency, etc., so as to simplify the filling process, ensure normal production, The effect of improving filling efficiency

Inactive Publication Date: 2013-04-17
HEBEI IRON & STEEL GRP MINING +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Background technology There are problems such as complex filling process, large amount of plugging, high filling cost and low filling efficiency in underground goaf filling treatment

Method used

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  • Large-range goaf group filling method
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  • Large-range goaf group filling method

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Experimental program
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Embodiment Construction

[0025] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0026] In the example, a large-scale open-pit mining of an iron mine began in 1975. In 2001 and 2003, the mineral resources in the middle section of -60 meters were developed and constructed twice, and mine rooms and roadways were formed during underground mining. , the vein-piercing roadway runs through the ore body. There is illegal mining near the veins, which destroys the mining plan of the mine and forms some goafs 1 and roadways 2 . Due to the adoption of open-field mining and management, 147 goafs have been formed at the -60m level, and most of the goafs have been penetrated, criss-crossing, and many places have appeared penetration points with the upper horizontal roadway, and the stability is extremely poor , Seriously affecting the normal production of mines, it is a typical large-scale goaf group.

[0027] The method of the present ...

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Abstract

The invention relates to a large-range goaf group filling method and belongs to the technical field of mining engineering. According to the technical scheme, the method includes: dividing filling units, selecting filling material, and laying out filling pipes; calculating to determine the thickness of a filling retaining wall, performing site construction, reserving drain holes and filter holes in the filling retaining wall, and stacking a hillock inverted filter layer behind the filling retaining wall; laying filter pipes, allowing the filter pipes to extend out from the drain holes of the filling retaining wall; constructing a filling borehole, 133mm-150mm in diameter, at a highest point, applying the filling borehole as an overhead discharge point, ensuring roof contact, constructing the corresponding number of filling boreholes according to practical situation, and performing alternating filling. The large-range goaf group filling method has the advantages that filling process is simplified, filling efficiency is increased, plugging amount is decreased, filling amount is decreased, filling period is shortened, filling cost is lowered, and normal mine production is guaranteed.

Description

Technical field [0001] The present invention involves a large -scale air -to -area group charging processing method, which is the field of mining engineering technology. Background technique [0002] At present, the significant increase in demand for mineral resources has led to greatly increase the intensity of mining mining in my country, and the number of air -to -air area has increased sharply, and a large -scale air -pricing area group has been formed in local areas.As one of the major sources of danger of mines, the vacant area seriously affects the safety of mines, and also threatens the safety and ecological environment of the lives and property of surrounding residents.With the increase in the exposure time of these empty areas, the stability is getting worse and worse, and geological disasters such as rock collapse, landslides, mudslides, and ground collapse must be kept as soon as possible.The background technology underground and vacuum areas are filled and filled, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/06E21F15/04E21F16/00
Inventor 南世卿付建新宋卫东宋爱东韩瑞亮
Owner HEBEI IRON & STEEL GRP MINING
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