预应力锚索张拉应力损失的探讨和解决方法

目前在边坡加固工程的预应力锚索张拉过程中张拉应力损失是极其常见的问题，常导致张拉质量低下等严重的工程质量问题．结合一高边坡治理工地的抗滑桩锚索张拉实例，做两组平行试验，探讨锚索张拉过程的应力损失问题，发现对锚索进行预张拉能有效的减少张拉应力的损失，在工程实际允许的情况下，预张拉应力越大，张拉应力损失越小．并总结出一些合理的锚索施工方法，同样能减少张拉应力的损失．

Discussion and Solutions to the Loss of Stretched Stress in Prestressed Anchor Cable

At present, in the process of tensioning of prestress anchored cables in slope reinforcement engineering, tensioned stress loss is a very common problem, which often leads to serious engineering results like low tensioned quality. Combined with the example of stress tension in anti-slide pile anchor on a high slope treatment engineering, two sets of parallel tests are undertaken, and the problem of tensioned stress loss in the process of anchor cable tensioning is analyzed. It is concluded that anchor prestressing can effectively reduce the tensioned stress loss. Within the allowable engineering circumstances, the bigger the prestressing stress, the smaller the tensioned stress loss. And some reasonable construction methods of anchor cable are put forward, which can also reduce the tensioned stress loss.