doi:10.16186/j.cnki.1673-9787.2019120044

Received:2019-12-16 00:00:00

Revised:2020/03/20

Published:2021/09/15

Study on strengthening mechanism of penetrating anchorage body

LIU Baomin, HANLongfei , YAOWei , SUN Haijun

Institute of Resources & Environment， Henan Polytechnic University， Jiaozuo 454000 ， Henan， China

Abstract:Abstract： In order to improve the theoretical system of penetrating the anchorage body ， based on similar test sand numerical simulation experiments ， the changing trend of mechanical properties of the penetrating anchorage body in the post-peak loading stage ， and the strengthening mechanism of the anchorage body on the bolt arrangement method were discussed ， and the reasons of the failure of the anchored bolts were exemplified and analyzed. The results showed that the strengthening factor of the penetrating anchorage body was mainly the arrangement method of the bolts after the peak load. Different arrangement methods led to different timing of failure of the penetration bolts ， which had an impact on the stability of the anchorage body in the post-peak stable bearing stage and the bearing reduction stage.

Key words:penetrating anchorage body;post-peak bearing capacity;bolt arrangement method;strengthening mechanism

 对穿锚固支护体的强化机理研究_刘保民.pdf