蒲白矿区王家尧头村庄下煤层控制开采技术

Strip Mining Technology Under Wangjiayaotuo Village in Pubai Mine Area

蒲白矿务局白水矿王家尧头村庄下煤层开采属于厚黄土覆盖层下厚煤层开采类型。针对其地质、开采条件,应用关键层及煤柱强度理论,结合相似材料模拟试验,数值计算分析、影响函数预计进行分析,确定了控制开采损害的开采法及相关参数。结果表明,运用倾斜条带开采方案可以保证关键层不受破坏,能够有效地控制地表移动和变形,从而控制地表坡体滑坡的发生,保证了地表建筑物的正常使用及矿区的安全生产,取得了显著的技术经济效果。

Strip mining under Wangjiayaotuo Village in Baishui Coal Mine of Pubai Mining Bureau be longs to mining in thick seams covered by loess layers. Aiming at its geology and mining conditions, by u sing the key stratum theory and coal pillar strength theory, in combination with the similar material simu lation experiments ,numerical computation analysis and influence function expected analysis, the mining methods and relevant parameters of controlling mining damage are determined. Results show that using the tilt strip mining plan can avoid the cirtical layers from damage, can effectively control surface move ment and deformation to control the occurrence of landslides in the surface slope. The normal use of sur face buildings and safety in production in mining area are ensured. The significant technical and econom ic effects are obtained.