摘要
采用相似材料模拟试验和有限元数值分析的方法,对40.0m巨厚煤层放顶煤分层开采时合理的分层厚度和采放比、顶煤的冒放性及冒放结构、顶煤回收率、矿压显现规律等进行了研究,认为巨厚煤层采用分层综采放顶煤采煤法在开采参数优化的条件下是可行的。
With simulation test of similar materials and finite element mumerical analysis,the author made study on the rational slicing thickness and mining-caving ratio,the caving feature and structure of roof coal,the recovery rate of roof coal and the ground behavior during fully mechanized slicing and caving extraction of 40m-thick coal seam.It was deemed that the use of fully mechanized slicing and caving extraction of extremely thick coal seams is feasible under the condition of the optimization of mining parameters.
出处
《矿业安全与环保》
2003年第2期20-23,共4页
Mining Safety & Environmental Protection
