Novel segmented grouting anchor rod for tunnel

• Main Authors: DENG HUI, HUANG WULIN, ZHU HONGJUN, LI LONGSHUI, GUO KANG, YANG YANG, PAN ZHIWU, JIN KE, HUANG JUN, JIANG DINGXUAN, HUANG MANRONG
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model relates to the technical field of anchor rod equipment, and discloses a novel segmented grouting anchor rod for a tunnel, which comprises a front rod, a middle rod and a rear rod which are all hollow and are movably fixed through connectors. Precession teeth are uniformly and spirally mounted on the surfaces of the front rod and the middle rod, each precession tooth comprises a base and a tooth body, the tooth bodies are hinged and fixed to the bases through hinge shafts, the hinge shafts are located on the front side edges of the tooth bodies, the bases are fixed to the front rod and the middle rod, and notches are formed in the front ends of the tooth bodies. The front rod, the middle rod and the rear rod which are separated from each other are arranged and are movably connected through the connectors, the corresponding number of middle rods are selected according to needs to meet the grouting depth during use, use is convenient, meanwhile, the rear rod is detachable, the rear rod can be t