摘要
采用现场矿压观测和计算机数值模拟对唐山矿特厚煤层综放工作面矿压显现规律进行了分析研究。矿压观测表明,工作面来压周期性较明显,呈现高频率、低强度的特征,平均周期来压步距为8.1m。整个工作面全长范围内,老顶来压具有明显的不一致性,即中部来压强度大,上部和下部来压强度小,上部高于下部。计算机数值模拟结果与现场矿压观测结果基本一致。
With the methods of in-situ strata-control observation and computer numerical simulation,the paper has researched the strata behavior law in the super-thick top coal caving face in Tangshan Coal Mine in Kailuan.The result shows that the periodic weighting in working face is apparent,with the characteristics of high frequency and low intensity.The average periodic weighting interval is 8.1m.The roof weighting is apparently different in the whole working face： it is larger in the middle than in the upper and lower parts,and is larger in the upper than in the lower part.The results of computer numerical simulation and in-situ strata-control observation are basically the same.
出处
《中国煤炭》
北大核心
2012年第4期41-43,67,共4页
China Coal
关键词
特厚煤层
综采
放顶煤开采
矿压显现规律
数值模拟
super-thick coal seam
fully mechanized coal mining
shblevel caving
strata tension behavior law
numerical simulation
