The research on underground pressure behavior of downward mining three soft thick coal seams based on analogous simulation experiment

摘要：

　　In order to study underground pressure behavior of downward mining three soft thick coal seams, taking the situation of 5111B11b mining working face of Huainan mining group Xieyi Colliery as the research background and applying analogous simulation, movement characteristic of overlying strata and underground pressure behavior rule were obtained on the basis of physical and mechanical parameters of coal and rock samples from the colliery.In mining three soft thick coal seams, there was no significant change in the underground pressure behavior of the top layer coal seam mining compared with the single coal seam mining;In mining the bottom layer coal seam, the roof was very fragile, the phenomenon of piece of help and roof caving was very serious, underground pressure was larger, periodical underground pressure was not obvious and caving angle was larger than that of top layer coal seam.

关键词： three soft thick coal seams downward mining analogous simulation underground pressure behavior

作者: YANG Min ZHAO Guang-ming LIU Zeng-hui ZHANG Yu

作者单位: School of Mining and Safety, Anhui University of Science and Technology, Huainan 232001 ,China

会议类型: 国际会议

会议名称: International Mining Conference 2014(2014国际采矿论坛)

会议地点: 安徽淮南

会议语种:英文

页码: 194-199

在线出版日期: 2014-09-19（万方平台首次上网日期，不代表论文的发表时间）