西安科技大学学报2011，Vol.31Issue(2)：141-145,5.
大倾角厚煤层软弱围岩煤柱支承压力监测分析
Monitoring and analysis of coal pillar abutment pressure in big inclined and thick coal seam
摘要
Abstract
On the conditions of large angle and soft rock, the distribution of stress is complex in coal pillar region. Disturbed by mining, coal thickness and angle could easily lead to the additional deformation instabihty and support failure of local region surrounding rock, however, the actual parameters of pillar are often varied with the reasults obtained by theoretical analysis and quantitative validation.Based on the field geomechanical investigation, and the help of borehole stress detector, the abutment pressure characteristics of vertical and tend mobile in the coal pillar of main transportation roadway is monitored and analysyed. The peak location and distribution of vertical and inclined moving abutment pressure are obtained, and the location of peak are calculated and analyzed based on the theory of plastic limit equilibrium, which provides a useful reference for improving roadway maintenance status and enhancing the recovery ratio of coal resources and mining in the similar conditions of thick seam.关键词
大倾角厚煤层/软弱围岩/移动支承压力/极限平衡理论/煤柱分类
矿业与冶金引用本文复制引用
刘孔智,伍永平,吴学明,严永胜,张建华,翟锦,于水,毕龙..大倾角厚煤层软弱围岩煤柱支承压力监测分析[J].西安科技大学学报,2011,31(2):141-145,5.基金项目
国家自然科学基金重大研究计划资助项目(90210012) （90210012）
陕西省重点实验室重点项目(05JS23) （05JS23）
