The paper analyzed the bolt pre-stress affected to the mine roadway support effect and the relevant relationship between the bolt pre-tightening torque and the pre-tension.
分析了锚杆预应力对巷道支护效果的影响，锚杆预紧扭矩与预紧力对应关系。
The paper analyzed the bolt pre-stress affected to the mine roadway support effect and the relevant relationship between the bolt pre-tightening torque and the pre-tension.
分析了锚杆预应力对巷道支护效果的影响，锚杆预紧扭矩与预紧力对应关系。
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