Overstretch Unloading Method of Pre-stressed Anchor Ropes

Combining practical engineering example, the method of unloading the anchor ropes pre-stress through overstretch is reviewed, and the influence of anchor ropes working effected by the loading-unloading-reloading function process is analyzed.Based on contrasting the results of pretighten and stretch, and monitoring the work of anchor ropes, the feasibility of the overstretch unloading method is illustrated.