bolt support in mine roadway 巷道锚杆支护
The bolt truss were used to reinforce a layer concrete beam in order to simulate a mine roadway support in a mine layer roof.
对锚拉支架支护层状顶板进行了模拟试验和参数优化研究；
The pre-stress is an important parameter of the bolt support and would have an important influence to the mine roadway support effect.
预应力是锚杆支护中重要的参数，预应力对巷道支护效果有重要影响。
The bolt types are various in coal mine roadway support. Different kinds of bolts have different anchorage performances and different applicable conditions.
煤矿巷道锚杆的种类繁多，我国煤矿巷道锚杆以树脂粘结式锚杆居多。
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