To study the mechanism and performance of rock breakage by an undercutting disc cutter with advanced slotting, a three-dimensional numerical model of rock cutting by a disc cutter with advanced ...

The operation of a shield tunnel boring machine (TBM) in a high-strength hard rock stratum results in significant cutter wear, adversely affecting the thrust and torque of the cutter head. The ...

Abstract: As an important equipment for wellbore construction, the raise boring machine (RBM) has been widely used in subway tunnels and mine construction projects. Its tipped hob cutter for rock ...

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