Field survey on the evolution of main ground cracks under condition of forced hard roof caving in mining ultra-thick coal seams under shallow overburden
The Yellow River Basin is an important ecological barrier and also an important coal base concentration area in China. The contradiction between ecological protection and coal mining is prominent. Under the conditions of typical shallow overburden, extra-thick coal seam and hard roof in the Northern...
| 出版年: | Meitan xuebao |
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| 主要な著者: | , , , , , |
| フォーマット: | 論文 |
| 言語: | 中国語 |
| 出版事項: |
Editorial Office of Journal of China Coal Society
2023-10-01
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| 主題: | |
| オンライン･アクセス: | http://www.mtxb.com.cn/article/doi/10.13225/j.cnki.jccs.2022.1651 |