顶板离层是锚杆支护巷道最大的安全隐患之一。
The roof abscission layer is the biggest security hidden danger in bolting support tunnel.
介绍了回采巷道复合顶板条件下采用小直径管缝式锚杆加钢筋梯式组合网支护的原理、方法和取得的经济效果。
The paper introduced the principle and methods of supporting combined the slit wedge bolt in small diameter with steel reinforcement in roadway with compound roof, and obtained economic effects.
应用材料力学理论，阐明了锚杆支护时锚尾一定受到偏心载荷作用和顶板锚杆破断的机理。
With material mechanics theory, expounded bolt tail subjected to no center load action and roof bolt broken mechanism while roadway was supported with bolts.
应用推荐