摘要
阳煤集团三矿K8203回风巷沿15#煤层底板掘进,受二次动压影响,围岩变形严重,通过顶板及两帮煤样和底板泥岩物理力学性能测试,对巷道变形破坏机理和围岩稳定控制技术进行了研究,提出全长预应力锚固技术方案,并成功应用于工程实践,较为有效地控制了巷道变形。
YangMei group three ore K8203 15#coal floor heading along the return air lane,affected by secondary dynamic pressure of surrounding rock deformation is serious,through the roof and two coal samples and backplane mudstone physical and mechanical performance test,the deformation failure mechanism of roadway and surrounding rock stability control technology are studied,put forward the total length of prestressed anchor technology solutions,and successfully applied in engineering practice,the more effectively control the deformation of roadway.
作者
仇晋忠
Qiu Jinzhong(Shanxi yangcoal group production technology department,Yangquan,Shanxi 045000)
出处
《江西煤炭科技》
2018年第1期72-74,共3页
Jiangxi Coal Science & Technology
关键词
采空侧巷道
全长预应力锚固
巷道支护
Mining side roadway
Full length prestressed anchorage
The roadway supporting
