动压巷道下的支护优化研究
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摘要
针对于恒昇煤业9102机巷在受到邻近的9104采空区动压影响下,出现顶板下沉严重,两帮变形量大的特点,将原有支护方案进行优化设计。并对现场进行持续性观测以及后期利用数值模拟的方法,对9102机巷的矿压规律进行研究,提出了分区段支护的巷道支护设计方案,一方面有效地控制了9102机巷的围岩变形;一方面降低了巷道支护的成本,寻求该地质条件下机巷支护方案与邻近采空区时空下的对应关系。
The 9102 belt transporter roadway is influenced by the dynamic pressure of 9104 goaf of Hengsheng coal,the roof is sinking badly,the deformation of the roadway′s sides is large, optimizing the design of the original support scheme. The method of continuous observation of the site and numerical simulation is carried out, studying of the underground pressure rule of 9102 belt transporter roadway,presents the roadway support scheme of subsection support. It effectively controls the deformation of the surrounding rock of 9102,and reduces the cost of roadway support,seeking a way of the corresponding relationship between the roadway support scheme and the space-time of adjacent goaf.
The 9102 belt transporter roadway is influenced by the dynamic pressure of 9104 goaf of Hengsheng coal,the roof is sinking badly,the deformation of the roadway′s sides is large, optimizing the design of the original support scheme. The method of continuous observation of the site and numerical simulation is carried out, studying of the underground pressure rule of 9102 belt transporter roadway,presents the roadway support scheme of subsection support. It effectively controls the deformation of the surrounding rock of 9102,and reduces the cost of roadway support,seeking a way of the corresponding relationship between the roadway support scheme and the space-time of adjacent goaf.
引文
[1]侯朝炯.巷道围岩控制[M].徐州:中国矿业大学出版社,2013.
[2]王连国,缪协兴,董建涛.动压巷道锚注支护数值模拟研究[J].采矿与安全工程学报,2006(1):39-42.
[3]康红普,林健,颜立新,等.山西煤矿矿区井下地应力场分布特征研究[J].地球物理学报,2009,52(7):1 782~1 792.
[4]王德璋,李俊杰.动压巷道矿压显现规律及支护技术[J].煤炭科学技术,2011,39(4):40-43.
[5]侯朝炯,勾攀峰.巷道锚杆支护围岩强度强化机理研究[J].岩石力学与工程学报,2000,19(3):342-345.
[6]康红普.我国煤矿巷道锚杆支护技术发展60年及展望[J].中国矿业大学学报,2016,45(6):1 071-1 081.
[2]王连国,缪协兴,董建涛.动压巷道锚注支护数值模拟研究[J].采矿与安全工程学报,2006(1):39-42.
[3]康红普,林健,颜立新,等.山西煤矿矿区井下地应力场分布特征研究[J].地球物理学报,2009,52(7):1 782~1 792.
[4]王德璋,李俊杰.动压巷道矿压显现规律及支护技术[J].煤炭科学技术,2011,39(4):40-43.
[5]侯朝炯,勾攀峰.巷道锚杆支护围岩强度强化机理研究[J].岩石力学与工程学报,2000,19(3):342-345.
[6]康红普.我国煤矿巷道锚杆支护技术发展60年及展望[J].中国矿业大学学报,2016,45(6):1 071-1 081.