The effective mining method at small piece section of superhigh and complicatedseam is explored.
探索有效的特厚复杂结构煤层小块段的开采方式，可提高效益，降低消耗，开采简单，便于生产。
2
An inversive research method was proposed through analyzing the complicated changing features of permeability of coal seam and the problems existing in actual measurement.
分析了煤层渗透率的复杂变化特点和实际测量上存在的问题，提出其反演方法。
3
However, because welding seam images are complicated, it is very important to choose suitable and effective processing algorithm in order to get accurately the information.