煤矿锚杆预应力损失分析及控制对策研究

Analysis of the prestress loss of the mine anchor and study of the control countermeasures

工程实践表明,煤矿巷道的高强预应力锚杆存在显著的预应力损失问题,并对其产生的原因进行了详细分析,提出了解决问题的办法,以达到设计所要求的张拉锁定值,经过工程验证,达到了预期的支护效果。

The engineering practice shows that the high strength prestressed anchor of the mine roadway has the remarkable problem of the prestress loss, and the paper analyzes the cause of the problem, puts forward the method to solve the problem, reaches the design requirements of the stretch locking value, the engineering proves that the expected effect is achieved.