Numerical analysis on the rules of coal movement and the failure mechanism and the force characteristics of the powered supports due to mechanized top-coal caving in steep thick seam

摘要：

By using UDEC2D distinct element method, this paper analyses the essential rules of coal and rock movement, the characteristics of coals deformation and failure, and the major principal stress in the process of top-coal caving in steep thick seam. The force characteristics and the movement trend of the powered supports for top-coal caving working face has been discussed by using FLAC3D finite difference method. The results showed the conclusion similar to the field conditions, which is of important theoretical meaning to direct the practice in the similar engineering.

关键词： the steep thick seam mechanized top-coal caving numerical simulation essential rules of coal and rock movement

作者: Shengjun Miao Shuren Wang Zhaofei Hou

作者单位: Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 10 School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China Civil and Environmental Engineering School,University of Science and Technology Beijing, Beijing 100

会议类型: 国际会议

会议名称: 2009煤矿瓦斯灾害预防与控制国际研讨会(International Symposium on Prevention and Control of Gas Disaster in Coal Mine 2009)

会议地点: 重庆

会议语种:英文

页码: 221-227

在线出版日期: 2009-05-20（万方平台首次上网日期，不代表论文的发表时间）