Resin anchoring promotes the development of high-strength cable bolts for underground rock support. However, the resin anchoring the cable bolt must be very effective in soft rock. Using conventional anchoring methods, the anchoring force provided by cable bolts in soft rock is low, and achieving high-strength support is difficult. Aiming to address these problems, this study developed a method to stir the resin more completely and thereby improve the uniformity of the resin and increase its density in the anchoring area. The problem was investigated using theoretical analysis, numerical simulations, and laboratory and field tests. A method for improving the cable bolt anchoring quality is proposed and stirring and blocking devices (SBDs) for resin-anchored rock cable bolts are developed. The stirring device has three stirring blades on its top and the blocking device’s diameter is slightly smaller than the diameter of the borehole. Both devices have protruding left-handed threads on their surfaces. The mechanisms for improving cable bolt anchoring quality are demonstrated. The main conclusions drawn from this study are that the devices can effectively improve resin uniformity and increase the density of resin in the anchoring area. This improves the quality of the anchorage and thus enhances mine safety. The field test showed that compared with the anchoring force of conventional cable bolts, the anchoring force provided by cable bolts using the SBDs were increased by more than 30%. The SBDs are easy to install and have practical significance for improving cable bolt anchoring force.

树脂锚固促进了用于地下岩石支撑的高强度电缆螺栓的发展。但是，锚固电缆螺栓的树脂在软岩石中必须非常有效。使用常规的锚固方法，由缆索螺栓在软岩​​中提供的锚固力较低，并且难以实现高强度支撑。为了解决这些问题，本研究开发了一种更完全搅拌树脂的方法，从而提高了树脂的均匀性并增加了其在锚固区域的密度。使用理论分析，数值模拟以及实验室和现场测试对问题进行了调查。提出了一种提高锚索锚固质量的方法，并开发了树脂锚固锚索锚固的搅拌和闭塞装置（SBD）。搅拌装置的顶部有三个搅拌叶片，阻塞装置的直径略小于钻孔的直径。两种设备的表面均具有突出的左手螺纹。演示了用于提高电缆螺栓锚固质量的机制。从这项研究得出的主要结论是，这些装置可以有效地改善树脂的均匀性，并增加锚固区域中的树脂密度。这提高了锚固的质量，从而提高了矿山的安全性。现场测试表明，与常规电缆螺栓的锚固力相比，使用SBD的电缆螺栓所提供的锚固力提高了30％以上。SBD易于安装，对提高电缆螺栓的锚固力具有实际意义。