“三软”厚煤层条带开采的地表移动规律

The Law Governing the Ground Movement in Partial Extraction of Soft Thick Seam with Soft Roof and Floor Strata

根据“三软”厚煤层条带开采试验中的地表移动实测资料的分析研究，得出了“三软”厚煤层条带开采条件下的地表移动特征、条带的合理采留尺寸以及地表移动变形参数的经验公式。

The ground movement due to mining of the seam in question demonstrate its special characteristics. Therefore the size of strip pillars left in partial extraction should be rationally determined. For calculating the ground deformation parameters in this case, empirical expressions are presented