Numerical Modeling of cross measure borehole gas drainage
文献类型：会议论文
| 作者 | Tao, Xu; Aihua, Yan; Hao, Tianxuan; Zhe, Zhang |
| 出版日期 | 2007 |
| 会议日期 | APR 16-19, 2007 |
| 会议地点 | Jiaozuo, PEOPLES R CHINA |
| 关键词 | gas drainage coal seam numerical simulation cross measure borehole |
| 页码 | 1358-1363 |
| 英文摘要 | The current practice of draining gas. from coal measures is drilling, both in coal seams as well as in the surrounding stratafication. The effectiveness of the drainage operation changes from location to location because of the varying geological conditions. A number of factors influence the success of gas drainage. Intrusions, faults, and folds can substantially influence the effectiveness of gas draining operations. In this paper, the effects of gas drainage on gas pressure in coal seams and the gas flow process induced by gas drainage in the coal seam is numerically studied by using a gas flow coupled Rock Failure Process Analysis code. The study has shown that the numerical mode employed in this paper is capable of realistically simulating the complex process of methane emission and flow around longwall panels in coal mines and can guide the decision about how to take a measure to deal with the coal methane in the coal seam and what mining methods are employed to excavate the coal seam. The modeling approach provides a basis for evaluating methane inflow and control measures. The successful reproducing of the experimentally and in-situ observed gas drainage phenomena with a numerical method implies that our understanding of the mechanisms of gas drainage to control outbursts has reached a more reasonable level, which in turn will help us to make further progresses in an better understanding of the mechanism of instantaneous outbursts and controlling and preventing the occurrence of instantaneous outbursts induced by underground mining. This approach will result in increased safety for mine workers in longwall mines by improving our ability to predict methane inflows and enabling more effective design of methane control measures. The pursuit of research on this topic may lead to more certain and better controlled enhancement of gas flows in methane drainage schemes. |
| 会议录 | Progress in Mining Science and Safety Technology, Pts A and B
 |
| 会议录出版者 | SCIENCE PRESS BEIJING |
| 会议录出版地 | BEIJING |
| 语种 | 英语 |
| WOS研究方向 | Mining & Mineral Processing |
| WOS记录号 | WOS:000248332001016 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4457]  |
| 专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
| 作者单位 | Dalian Univ Technol, Ctr Mat Failure Modeling Res; Chinese Acad Sci, Key Lab Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Tao, Xu,Aihua, Yan,Hao, Tianxuan,et al. Numerical Modeling of cross measure borehole gas drainage[C]. 见:. Jiaozuo, PEOPLES R CHINA. APR 16-19, 2007. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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