Abstract: In order to figure out problems of low efficient of drilling-and-blasting and roadheader in hard rock strata which UCS is larger than 60Mpa, the feasibility study of application of TBM in shaft colliery was carried out. The machine was designed and manufactured specially to meet demands of methane-proof and shaft hoisting. The TBM was assembled and tested in underground assembly station and started stepping in the same location. Penetration, bolting, meshing and rock conveying were conducted simultaneously which guaranteed speed and efficiency of penetration. Measurement and monitoring data were collected for adjusting supporting parameters and establishing dynamic supporting system. The average penetration rate is 13.5m/d and the record is 30.7m/d, which is 5~10 times that of conventional drilling-and-blasting.

Key words: shaft coal mine, hard rock, Tunnel Boring Machine (TBM), support design