摘要
针对使用Φ35×1200mm管缝式金属锚杆的巷道容易发生片帮、变形、底鼓等问题,通过分析煤岩层力学性质和围岩裂隙深度,采用合理增加锚杆长度等措施,锚网喷支护质量有了根本改变。
In view of the problems such as spalling,deformation and floor heave in Roadway withΦ35×1200mm pipe seam metal bolt,the quality of bolt mesh shotcreting support has been fundamentally changed by analyzing the mechanical properties of coal and rock and the depth of surrounding rock fracture,and adopting measures such as reasonably increasing the length of bolt.
作者
刘春阳
Liu Chun-yang(Hunan Coal Industry Group Xiangyong Mining Co.,Ltd.,Hunan Yongxing 423315)
出处
《山东煤炭科技》
2020年第8期4-5,共2页
Shandong Coal Science and Technology
关键词
锚网
支护
软岩
anchor net
support
soft rock