The function of a resin anchoring agent is to bond the rock of a borehole wall with the body of the anchor so the anchor can play an effective supporting role. The anchoring effect is related to the performance of the resin anchoring agent used and to the stirring rate applied during the anchor installation process. In this report, the stirring rate of the resin anchoring agent is evaluated and discussed in terms of how it affects pore structure and anchoring strength. When the stirring rate is in the range of 400–950 r/min, the uniaxial compressive strength of the resin anchoring agent increases proportionally with the stirring rate, and the compressive strength corresponding to the maximum stirring rate is 15.1% greater than that corresponding to the minimum stirring rate. Conversely, the pore size of the foam inside the resin anchoring agent is inversely proportional to the stirring rate, and the pore size corresponding to the maximum stirring rate is 15.1% smaller than that corresponding to the minimum stirring rate. The anchoring strength increases proportionally with the stirring rate when the stirring rate is between 400 and 800 r/min. Specifically, the anchoring strength associated with the maximum stirring rate is 9.2% greater than the anchoring strength corresponding to the minimum stirring rate. As the stirring time increases from 20 to 60 s, the anchoring force first increases and then decreases, with the optimal stirring time determined to be about 50 s. The results presented herein can be applied to improve anchor installation technology and the anchoring strength of resin anchoring agents.

中文翻译：

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搅拌速率影响树脂锚固剂气泡结构和锚固强度的实验研究

树脂锚固剂的功能是将井壁的岩石与锚固体粘结在一起，从而使锚固发挥有效的支撑作用。锚固效果与所用树脂锚固剂的性能以及在锚固安装过程中施加的搅拌速率有关。在该报告中，就树脂锚固剂的搅拌速率如何影响孔结构和锚固强度进行了评估和讨论。当搅拌速度在400-950 r / min的范围内时，树脂锚固剂的单轴抗压强度与搅拌速度成比例增加，对应于最大搅拌速度的抗压强度比对应于最大搅拌速度的抗压强度大15.1％。最低搅拌速度。反过来，树脂锚固剂内部的泡沫的孔径与搅拌速度成反比，与最大搅拌速度相对应的孔径比与最小搅拌速度相对应的孔径小15.1％。当搅拌速度在400和800r / min之间时，锚固强度与搅拌速度成比例地增加。具体地，与最大搅拌速率相关的锚固强度比与最小搅拌速率对应的锚固强度大9.2％。随着搅拌时间从20 s增加到60 s，锚固力首先增加，然后减小，最佳搅拌时间约为50 s。本文介绍的结果可用于改善锚固安装技术和树脂锚固剂的锚固强度。