Studies on the Mechanism of Mining Fault Activation and Method of Safe Protecting Coal Pillar Design below the Village
Based on the study of mining and geological background of Pubai mining area and combined with test-in-place and finite element analysis, this paper analyze the mechanism of mining fault activation by 22515 working face and lead ZhangPo village which is far away from mining subsidence area to appeared land subsidence paralleled to the fault. Simulate protecting coal pillar design for 17 509 working face by FLAC3D. The results show that when the horizontal distance of stop line to the fault is 120 m, mining has little effect on the fault, not induced the fault activation. Then give the formulas for calculating minimum safety pillar of great fault below the village, and confirm that the calculation method is safe and reliable by mining and surface observations. This paper gives a basis for protecting coal pillar design in Pubai mining area.
village mining fault activation safe protecting coal pillar design
YU Xueyi HUANG Guoyao ZHAO Bingchao WANG Nianqin
School of Energy, Xian University of Science and Technology, Xian 710054, Shaanxi China School of School of Geology and Environment Engineering Xi an University of Science & Technology, Xi an 71005 School of Energy, Xian University of Science and Technology, Xian 710054, Shaanxi China Key labora School of Geology and Environment Engineering Xi an University of Science & Technology, Xi an 71005
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1348-1353
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）