综放工作面上覆岩层荷载及步距的确定

Calculation of the Above Load and Collapse Step Length in Fully-mechanized Caving Face

依据纳林沟联营煤矿工程地质特征,分析计算了纳林沟联营煤矿6-2号煤层顶煤荷载和初步垮落步距,并结合数值模拟得出理论计算和现场实际相吻合,对确定采场上覆岩层荷载及步距具有一定参考价值和实际意义。

Combined with engineering geological characteristics of Nalin gou joint venture coal mine, this article analysed and calculated load and step length from the initial collapse of 6-2 top coal, a numer- ical simulation indicating theoretical calculations come up to actul situation, which had a certain reference value and practical significance of overlying rock load and step length.