Effect of main roof fracturing on energy evolution during the extraction of thick coal seems in deep longwall faces /
During the extraction of coal from thick seams in deep longwall faces, both high in-situ stress and a massive main roof are common. The progressive fracturing in this massive main roof leads to an increase in the front abutment stress and changes in the strain energy of the coal seam which can lead...
| Hlavní autor: |
Wang Jun
(
Autor )
|
|---|---|
| Další autoři: |
Ning Jianguo
(
Autor )
|
| Typ dokumentu: | Článek |
| Jazyk: |
angličtina |
| ISSN: | 1214-9705 |
| Zdroj: | Acta geodynamica et geomaterialia: Vol. 14, no. 4 (2017), p. 377-387. |
| Předmět: | |
| Externí odkaz: |
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