A case study of pillar extraction techniques based on strip-filling and second-mining method
Strip coal pillars caused by strip mining are widely distributed in China. Over time, strip coal pillars are posing more potential hazards as their stability decreases; therefore, it becomes increasingly important to recover coal pillars without damaging the ground surface. In this paper, strip-fill...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.1051245/full |