复杂地质条件下大采长回采技术应用研究

Application Research on Mining Technology of Big Mining Length under Complex Geological Conditions

为了缓解因矿井升突造成的采掘接替紧张局面,降低万吨掘进率,在永夏矿区复杂地质条件下开展了大采长综采工作面回采技术研究。简述了永夏矿区复杂的地质条件,分析了现有回采技术的适用条件、优缺点和发展趋势,认为条件具备时优先选用大采长回采技术。详细介绍了大采长回采技术的采面布局,分析了大采长回采技术的突出优势,并提出了注意事项,依据此项技术在永夏矿区各矿井的应用情况,详细分析了经济和社会效益,效果显著。

For relieve the Excavation replacement tension of outburst mine and reduce the tunneling ration,the research of big mining length technology was conducted under complex geological conditions in Yongxia mining area.The complex geological conditions in Yongxia mining area was briefly described.The applicable conditions,advantages and disadvantages and development trend of the existing mining technology were analyzed.When the conditions were met,the big mining length technology was preferred.Mining arrangement of the big mining length technology was introduced in detail.Analysis outstanding advantages of the big mining length technology and present matters needing attentions.According to the technology applications of coal mines in Yongxia area,the economic and social benefits were analyzed in detail.The remarkable effects were achieved.