Applied research of strata behavior in fully mechanized top coal caving in soft coal seam based on forecast-control

摘要：

Based on the thought of forecast-control,the information on stress and displacement of roof,support as well as floor is available,through the analysis of the law of underground pressure in 5102 working face in Wu Yang Colliery in fully mechanized top coal caving mining with soft,greater obliquity and undulate seam.The simulation analysis shows that,in the process of mining in 5102 working face,rib fall,roof fall and unsupported roof distance in the upper beheading will increase,especially in the central and lower part of the working face,and some corresponding measures should be constituted to control the possible hazards.Through the implementation of coal wall reinforcement,dip advancing and enhance advancing speed,the 5102 face has produced about 45,000 tons coals in 26 days without any accidents.The technical and economic benefits are remarkable,and the research can also provide references for fully mechanized mining with top coal caving in similar seams.

关键词： Forecast-control Soft coal seam Fully mechanized top coal caving Strata behavior Numerical simulation

作者: Tu Shihao Yuan Yong Zhang Lin Fang Xinqiu

作者单位: School of Energy Resource and Safety Engineering,China University of Mining and Technology,Xuzhou,Ji Coal Mine Safety Supervision Bureau of Dali,Dali,Yunan 671000,China

会议类型: 国际会议

会议名称: The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)

会议地点: 青岛

会议语种:英文

页码: 195-200

在线出版日期: 2007-10-17（万方平台首次上网日期，不代表论文的发表时间）