摘要
为保障2S202-1工作面回风顺槽围岩稳定,通过理论分析复合顶板“拱-梁”支护结构,确定巷道采用高强锚杆(索)支护技术,结合巷道复合顶板的特征,确定支护参数,并在巷道掘进期间进行巷道围岩变形量的监测分析。结果表明:巷道在高强锚杆索支护方案下,围岩变形量较小,围岩处于稳定状态。
In order to ensure the stability of the surrounding rock along the return air grooving of the 2S202-1 working face,through the theoretical analysis of the"arch-beam"supporting structure of the compound roof,it is determined that the roadway adopts the high-strength bolt(cable)supporting technology,combined with the characteristics of the roadway compound roof,the supporting parameters are determined,the surrounding rock deformation of the roadway is monitored and analyzed during the roadway excavation.The results show that under the high-strength anchor cable support scheme,the deformation of surrounding rock is small and the surrounding rock is in a stable state.
作者
连晓强
Lian Xiaoqiang(Shanxi Xiangning Coking Coal Group Taitou Coal Coke Co.,Ltd.,Shanxi Xiangning 042100)
出处
《山东煤炭科技》
2021年第12期18-20,共3页
Shandong Coal Science and Technology
关键词
顺槽
复合
顶板
支护
grooving
compound
roof
support
