摘要
文中通过理论分析在原巷道支护方案基础上对巷道支护重新设计,现支护方案与原支护方案相比,锚杆的长度增加了,顶板锚杆间距没变,排距减少,左右帮各增加一根锚杆,排距减少,对于锚索,与原方案相比,长度减少,由原来的"三二三"布置变为"三三"布置,间排距都减少。
Through theoretical analysis,the paper redesigns the tunnel support on the basis of the original tunnel support scheme.Compared with the original support scheme,the length of the anchor bolt increases,the roof anchor bolt spacing remains unchanged,and the row spacing decreases.One anchor bolt is added to the left and right sides respectively,For the anchor cable,compared with the original scheme,the length is reduced,from the original"three two three"arrangement to"three three"arrangement,and the spacing between rows is reduced.
作者
魏迪
Wei Di(Shanxi Fenxi Yixing Coal Industry Co.,Ltd.,Shanxi,032300)
出处
《当代化工研究》
2020年第1期127-128,共2页
Modern Chemical Research
关键词
孤岛工作面
沿空巷道
支护设计
效果考察
island working face
gob side roadway
support design
effect inspection
