Comparative investigation of the damage of coal subjected to pure water jets, ice abrasive water jets and conventional abrasive water jets

This paper firstly proposed using ice abrasive water jets (IAWJs) to slot coal seam to ensure the safe exploitation of coal mines. The performances of IAWJs, pure water jets (PWJs) and conventional abrasive water jets (CAWJs) breaking coal were simulated and compared using the coupled SPH-FEM methodology. The findings indicate that the breaking performance of coal samples subjected to abrasive water jets are more obvious than those of coal...