Study on the law of surface subsidence in layered mining of thick coal seam with medium hard roof
文献类型：期刊论文
| 作者 | Liu, Xiugang4,5,6; Wei, Fei2,3; Tan, Zhixiang1; Jiang, Zaibing4,5,6; Wang, Yi4; Zhang, Jie4 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2023-09-07 |
| 卷号 | 13期号:1页码:12 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-023-42012-5 |
| 英文摘要 | In this study, the change law of the surface subsidence coefficient under the condition of thick coal seam layered mining was investigated. The study is based on the measured subsidence data of the 1210-working face of the Mengba mine surface mobile observation station after the first- and second-layer mining. UDEC numerical simulation software was used to simulate the variation of surface subsidence coefficient after the first, second, third, fourth, fifth-, and sixth-layer mining when the thickness of slicing mining is 5 m. The maximum relative error between the simulated result and the measured result of the subsidence coefficient q is 2.7%, which further verifies the correctness of the established model. Moreover, the simulation results show that with the increase of the cumulative mining thickness, the subsidence coefficient q of the surface presents a segmented characteristic. When the cumulative mining thickness does not reach 25 m, the subsidence coefficient of the surface gradually increases with the increase of the mining thickness. On the other hand, when the cumulative mining thickness reaches 25 m, the subsidence coefficient of the surface will tend to a constant value and no longer change with the increase of the mining thickness. Finally, the calculation formula between the surface subsidence coefficient and the cumulative mining thickness of layered mining under the condition of medium hard roof is fitted, which provides a parameter basis for coal seam mining with similar geological conditions. |
| WOS关键词 | PREDICTION |
| 资助项目 | Found of the National Key Research and Development Program and Key Special Fund Project[2018YFC0808202] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001065283800004 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project ; Found of the National Key Research and Development Program and Key Special Fund Project |
| 源URL | [http://210.72.145.45/handle/361003/14236]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Liu, Xiugang |
| 作者单位 | 1.China Univ Min & Technol, Jiangsu Key Lab Resource & Environm Informat Engn, Xuzhou 221116, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 4.CCTEG Xian Res Inst Grp Co Ltd, Xian 710077, Peoples R China 5.China Coal Res Inst, Beijing 100013, Peoples R China 6.China Univ Min & Technol Beijing, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiugang,Wei, Fei,Tan, Zhixiang,et al. Study on the law of surface subsidence in layered mining of thick coal seam with medium hard roof[J]. SCIENTIFIC REPORTS,2023,13(1):12. |
| APA | Liu, Xiugang,Wei, Fei,Tan, Zhixiang,Jiang, Zaibing,Wang, Yi,&Zhang, Jie.(2023).Study on the law of surface subsidence in layered mining of thick coal seam with medium hard roof.SCIENTIFIC REPORTS,13(1),12. |
| MLA | Liu, Xiugang,et al."Study on the law of surface subsidence in layered mining of thick coal seam with medium hard roof".SCIENTIFIC REPORTS 13.1(2023):12. |
入库方式： OAI收割
来源：国家授时中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。