Study on Overlying Strata Movement and Structure Features Aroused by Mountainous Shallow Buried Coal Seam Mining

摘要：

When mountainous shallow- buried coal seam mined, the strata behaviors were intense and even some supports crushed or the tail beam and roof beam separated. Contraposing this phenomenon, it analyzed the overlying strata movement rule and structure features aroused by mountainous shallow-buried coal seam mining with Distinct Element Method. When mountainous shallow-buried coal seam mined, the overlying strata up to the surface would collapse, fall, and the horizontal displacement along mountain slope was apparent. The overlying strata would form relatively independent two-zone structure, the horizontal stress among the rocks was weak, and can not form bearing structure with necessary bearing property by itself. It made the load on supports increase and strata behaviors became intense. This article also pointed out the conditions to form this two-zone structure.

关键词： Mountainous shallow-buried coal seam mining Movement of overlying strata Structure of overlying strata Two-zone structure

作者: FAN Kegong LIU Guolei XIAO Tongqiang ZHENG Lei

作者单位: Ministry of Education Key Laboratory of Mine Disaster Prevention and Control, Shandong University of State Key Laboratory of Coal Resources and Safe Mining, Xuzhou 221008, China School of Mechanics and School of Mines, China University of Mining and Technology, Xuzhou 221008, China Ministry of Education Key Laboratory of Mine Disaster Prevention and Control, Shandong University of

会议类型: 国际会议

会议名称: 2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)

会议地点: 青岛

会议语种:英文

页码: 76-82

在线出版日期: 2010-10-15（万方平台首次上网日期，不代表论文的发表时间）