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Dynamic effects of high-pressure pulsed water jet in low-permeability coal seams

โœ Scribed by Xiao-hong Li; Dong-ping Zhou; Yi-yu Lu; Yong Kang; Yu Zhao; Xiao-chuan Wang

Book ID
118825884
Publisher
China Coal Society
Year
2009
Tongue
English
Weight
495 KB
Volume
15
Category
Article
ISSN
1006-9097

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โœ lin LIU; Yuan-ping CHENG; Hai-feng WANG; Liang WANG; Xian-qin MA ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier ๐ŸŒ English โš– 276 KB

With the increase in mining depth, the danger of coal and gas outbursts increases. In order to drain coal gas effectively and to eliminate the risk of coal and gas outbursts, we used a specific number of penetration boreholes for draining of pressure relief gas. Based on the principle of overlying s