中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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