Research on reasonable layout parameters of working faces based on the concept of harmonic extraction to reduce the damage of coal seam waiting for upward mining
Chai Jing, Han Zhicheng, Lv Weiming, Zhu Haitao, Hou Shuhong · 2023
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Description
Chai Jing, Han Zhicheng, and their co-authors worked out how to lay out coal mine working faces so that a seam mined later from below is damaged as little as possible. Their 2023 paper applies an idea called harmonic extraction, in which faces are arranged to balance the ground movement they cause. The case is the number one seam in a panel of the Zaoquan Coal Mine.
The team first derived layout formulas for coordinated mining along the seam's slope. A physical simulation test measured how mining three lower seams would affect the upper seam. The layout values were then set, and computer calculations scored the upper seam's movement on five measures, from sinking to bending. The chosen layout kept deformation acceptably even for the later upward mining.
Catalog record
| CREATOR | Chai Jing, Han Zhicheng, Lv Weiming, Zhu Haitao, Hou Shuhong |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 34 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |