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Gas Drainage Fully Mechanized Drainage Borehole Influence Area of Fractal Research in Coal Mine
Author(s): 
Pages: 26-27,31
Year: Issue:  10
Journal: Coal

Keyword:  fully-mechanized cavingdrainagefractalhole spacing;
Abstract: To protect gas mine safe and efficient mining of full-mechanized caving mining face,the bedding of full-mechanized caving mining face drainage drilling field to study the effect of extraction. Description of fracture development degree is using the fractal theory, analyzed the coal face tend to different positions inside fracture development degree and the optimum of extraction effect area;compari-son and analysis the different degree of fracture of coal body around the spacing between the borehole drilling,and combined with the re-quirement of extraction from 5. 0 m for reasonable spacing,hole spacing and industrial test on the spot.
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