摘要
为了探究东周窑矿宽煤柱巷道围岩变形机理,通过现场观测、理论分析现有宽煤柱条件下下侧向高支承压力对巷道围岩的影响和采动应力叠加的影响,理论计算了合理煤柱宽度为6 m,提出了相应的支护措施,并在现场取得了良好的应用。结果表明:采用窄煤柱沿空掘巷后,相邻工作面开采期间巷道围岩最大变形量为127 mm,围岩控制效果良好。
In order to explore the deformation mechanism of surrounding rock of wide coal pillar roadway in Dongzhouyao Mine,through on-site observation and theoretical analysis of the influence of lower lateral high abutment pressure on roadway surrounding rock and the superposition of mining stress under the condition of existing wide coal pillar,the reasonable width of coal pillar is 6 m by theoretical calculation,and the corresponding supporting measures are put forward,which have been well applied in the field.The results show that after driving roadway along goaf with narrow coal pillar,the maximum deformation of surrounding rock of roadway is 127 mm during mining of adjacent working face,and the control effect of surrounding rock is good.
作者
苏鹏
Su Peng(Jinneng Holding Coal Industry Group Tongfa Dongzhouyao Coal Industry Co.,Ltd.,Shanxi Datong 037100)
出处
《山东煤炭科技》
2022年第4期1-3,共3页
Shandong Coal Science and Technology
关键词
沿空
厚煤层
窄煤柱
宽度
along the goaf
thick coal seam
narrow coal pillar
width
