摘要
分析了同一参数锚杆(索)在锚固端头容易产生剪切破坏的实际,对巷道中部的锚杆(索)进行单独专项设计,适当增大其长度和直径,使支护更加符合和接近顶板冒落规律;同时将巷道两侧的锚杆(索)设计成斜肩角式方向,以使锚固端锚入巷道两帮一定深处,让该处处于受压状态的岩体作为支护结构的基础。
For the same parameters of anchor rod(rope) on the anchor end prone to the actual conditions of shear failure, the roadway anchor rod(rope) separately in the middle of special design, appropriate increase its length and diameter, to support more and close to the roof caving regularity;At the same time the roadway on both sides of the anchor rod(rope) designed direction Angle of inclined shoulder type, so that the anchor end anchorage two for a certain deep into the tunnels, let it in the compression state of rock mass as the foundation of the supporting structure.
出处
《机械管理开发》
2016年第6期16-17,21,共3页
Mechanical Management and Development
关键词
支护技术
参数
锚杆
supporting technology
parameter
rock
