The stress of Anchors and concrete which bears huge pre-stress under anchors is relatively well-distributed or not, that is measure criterion of anchorage.

• 锚具及锚具下部锚固体的应力分布是否相对均匀合理并且不会产生较大的应力集中，成为衡量锚固体系各部分结构是否合理的检验标准。