The broken situation of the roof supported by bolting was analysed,Belting and bolting with wire mesh was successfully tested in Jinpushan.

• 从分析锚杆支护巷道顶板破坏形态着手,根据锚杆作用机理,确定锚杆支护参数,并进行了钢带锚网支护试验,在晋普山煤矿取得了成功。