摘要
针对王庄煤矿锚杆锚固长度长,施工难度较大的实际情况,在9105工作面原有锚杆支护的基础上进行优化。使用UDEC数值模拟软件分析了锚杆锚固长度与围岩位移之间的关系,通过对3种不同的巷道支护方案进行研究,得到了最优的锚杆锚固参数。结果表明:锚杆锚固长度取600 mm时,能够满足巷道稳定性的要求,并且有利于加快现场施工进度。
In view of the long anchorage of bolts and difficult construction in Wangzhuang Mine,this study optimized the bolting support on the original basis of the No.9105 working face.With the numerical simulation software UDEC,this study analyzed the relationship between the anchorage length and the displacement of surrounding rock to obtain the optimal anchoring parameters of the three supporting schemes.The results show that the anchorage length of 600 mm could meet the requirements for the stability,which is conducive to speeding up the on-site construction.
作者
申李华
SHEN Lihua(Wangzhuang Mine,Lu’an Environmental Protection and Energy Development Co.,Ltd.,Changzhi 046031,China)
出处
《山西煤炭》
2022年第2期68-73,86,共7页
Shanxi Coal
关键词
锚固长度
围岩稳定性
锚固力
数值模拟
anchorage length
stability of surrounding rock
anchorage force
numerical simulation
