The Experiment Study of the Special Shaped Anchor Bearing Capacity

Abstract

The partial stress concentration effect in traditional anchor is serious, leading to overall failure of anchors. Therefore, experiential method had been applied to explore the relationship between bolt bearing capacity, anchor thorn layer, strength of mortar and the block size, through improving the bearing capacity of anchor with the anchor thorn. From the test, below conclusions had been drown: firstly, the special shaped anchor bearing capacity has a linear relation with the early stress of cement mortar at the early stage, while after reaching a certain intensity, the relation would change to be nonlinear, meaning greater mortar strength doesn’t represent better function. Secondly, based on the experiment results, we can conclude that under the condition of single anchor thorn, the bearing capacity of anchor increases with the size of the test cube, representing that given a certain level of anchor thorn stress, the anchor bearing capacity is positively related to the thickness of the cement mortar.