Research on fine design method of pre-drainage zoning borehole on high gas working face
At present, single borehole spacing is generally used to pre-drainage gas on high gas working face. But in the design of pre-drainage boreholes, influence of geological structure and other factors on the design of pre-drainage area are not considered, and relationship between extraction time and bor...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Industry and Mine Automation
2019-07-01
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| Series: | Gong-kuang zidonghua |
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| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2019010102 |