Construction safety. Compared with other anti-well construction methods, during the construction of the Reaming Bit, the worker does not need to enter the work surface for drilling, charging and temporary support operations. The workers are all in the upper part of the environment and safety conditions. No longer be hurt by falling stones, water spray, and harmful gases, avoiding the occurrence of all accidents. High working efficiency. The reaming bit construction is a mechanized continuous operation, which is fast and improves the work efficiency by 5-10 times compared with other construction methods, which creates good conditions for the later construction and has significant comprehensive benefits. The project quality is good. The reamer bit uses mechanical hob rock breaking, which has little damage to the surrounding rock and smooth shaft wall, which is conducive to expanding slag, ventilation and drainage. The reaming bit is controlled by hydraulic transmission, which is easy to operate and has low labor intensity.
