Development and application of a pressure-preserving sampler for long boreholes in coal mines
In underground coal mine long borehole sampling, significant challenges include substantial gas loss, complex borehole conditions, and low coal sample drilling rates. To address these issues, a pressure-preserving sampler is designed, integrating high-pressure water as the driving force, a piston dr...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2025-02-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2024120047 |
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