摘要
分析了切眼宽度和顶煤厚度对端头悬顶稳定性的影响,提出了以螺纹钢锚杆锚固为"小结构"、以桁架锚索锚固为"大结构"的支护方式,并在云冈矿4101工作面进行了实践应用,保证了大断面端头悬顶的稳定性。
This paper analyzed the influence of the width of the incision and the thickness of the top coal on the stability of the end suspension roof, proposed the support method of taking the deformed steel bars bolt anchoring as the "small structure" and truss anchor wire anchoring as the "large structure". It has been applied in the 4101 working face of Yungang Coal Mine to ensure the stability of the large-section end suspension.
引文
[1]王宇,王红亮,戚福周,等.深部高应力巷道支护技术优化与应用研究[J].煤,2017,26(6):55-57.
[2]刘宗柱.近距离煤层群下煤层回采巷道布置及围岩控制技术研究[D].北京:中国矿业大学,2014.
[3]杨伯达.五家沟矿特厚煤层区段煤柱参数及采动平巷支护研究[D].北京:中国矿业大学,2014.
[4]周俊林,林登阁,王迎东.深部高应力软岩巷道支护技术[J].建井技术,2013,34(6):29-32.