松软中厚煤层综放工作面过老巷技术实践

Technical practice of fully-mechanized caving face cross old roadway in soft and medium thick coal seam

采煤工作面过老巷是采煤工作面在回采过程中所遇到的难题之一,工作面回采期间对顶板的控制及支护问题是决定工作面过老巷能否安全顺利通过的关键因素。通过提前调整工作面与老巷的夹角以及与老巷的层位关系,并加强现场安全措施的落实,实现了安全顺利回采。

Coal mining face is advanced across old roadway is one of the difficult problems encountered in mining process.In the process of coal winning,the control and supporting of roof are the key factors to decide whether the coal mining face crossing old roadway safely.By adjusting the angle between the working face and the old lane and the relationship with the old roadway in advance, and strengthening the implementation of the on-site safety measures, the safe and smooth mining was achieved.