bolting

Description is made on the principle and application result of the short group bolting of slushing roadways in loosened rock.

论述了短锚杆群支护碎裂岩石中耙道的原理及实施效果。

Safety effective of metal forepole support was analyzed in beam and bolting with wire mesh,problem and improvement was given safety effective was ensured.

针对金属前探支护在架棚及锚网支护巷道中的安全作用进行了全面分析,提了改进方案和存在问题,确保了金属前探支护的安全作用。