摘要
在整理和分析大量实测资料基础上 ,应用数理统计方法对覆岩中硬岩层对岩移参数的影响进行了研究 ,找出了硬岩层在覆岩中所占比例与岩移参数统计规律 ,对开采沉陷的进一步研究具有重要的意义。
On the basis of sorting ouf and analysis much test material,making use of mathematical statistics method,this paper studies the influence on hard rocks seam of covering rock to rocks deformation parameter,find out statistical rule of rock deformation parameter and proportion of hard rocks seam in covering rock it has a great meaning to mining sinking study.
出处
《煤》
2000年第4期8-9,共2页
Coal
关键词
硬岩层
下沉系数
拐点偏移距
覆岩
岩层移动
开采沉陷
hard rocks seam
sinking coefficient
main effecting angle(tanβ)
turning spot inclined distance
