软煤层大采高工作面煤壁片帮机理与控制

Mechanism and Control of Rib Spalling at Large Mining Height Working Face of Soft Coal Seam

软煤层大采高工作面能否成功开采的关键往往是片帮问题是否能够得到有效解决。文章以3201工作面为例,对软煤层大采高工作面煤壁片帮进行理论分析和数值模拟研究,掌握了煤壁片帮机理;通过现场实测和分析,掌握了该工作面的煤壁主要片帮形式。针对3201工作面煤壁片帮问题,提出了相应的控制措施,为工作面安全高效回采奠定了基础。

Whether problems of rib spalling is effectively solved or not is the key to the succuss mining at large mining height working face.Taking 3201face for example,the paper had theoretical analysis and numerical simulation study on rib spalling at large mining height working face of soft coal seam,mastered rib spalling mechanism and rip spalling form by field measurements and analysis.Aiming at the problems of rib spalling at 3201 face,the paper also proposed corresponding control measure,which laid the foundation of safe and efficient mining at face.