Research on the technology rule of high-power laser pretreatment of granite slitting

Abstract

In order to provide new pretreatment damage morphology for TBM rock breaking, the author used a ten-thousand-watt laser beam to perform cutting experiments on granite. Different laser power and cutting speed were set, and the cutting depth, width, rock removal and mass ratio were measured, calculated and analyzed. The experimental results showed that the laser power increased, the depth of cut, width and rock removal increased, and the mass ratio decreased; the cutting speed increased, the depth of cut, width and rock removal decreased, and the mass ratio increased. Under this experimental condition, the cutting effect is better when the laser power is 12kW and the cutting speed is 6mm/s.