对穿锚固支护体的锚固方式优化研究

Research on optimization of anchor pile layout of penetrated anchor supporting body

为完善对穿锚固支护方式的理论体系,本文通过相似试验以及数值模拟试验,以锚固方式为研究对象,探讨不同锚杆布设方式对支护体的强化规律,尤其是峰后承载力、Y向位移以及塑性区体积的变化。结果显示:不同部位锚杆加密方式对支护体带来的效果不同,对称梅花桩式布设是最为合理的布设方式。本文结果可为相关研究提供参考。

In order to supplement the theoretical system of penetrated anchor,In this paper,through similar experiments and numerical simulation experiments,taking anchoring methods as the research object,the strengthening laws of different anchor bolt layout methods on the support body are discussed,especially the post-peak bearing capacity,Y-direction displacement and the change of the plastic zone volume.The results show that encryption method of different part of anchor bolt has different effect on the support body,and the symmetrical plum blossom pile layout is the most reasonable layout method.The result can provide references for relative research.