Simulation and analysis on cutting soil with high pressure water jet based on EDEM-fluent coupling

High pressure water jet can play a role in cutting soil during vacuum excavation, and its parameter selection has a significant impact on subsequent vacuum suction. To analyze the impact of key parameters on soil cutting, a method based on EDEM-Fluent coupling is proposed. Nozzle and soil model are constructed, and optimal parameter values for the highpressure water jet are selected based on the maximum soil cutting depth as an indicator. Simulation results demonstrate that the maximum soil cutting depth increases with pressure; initially remains constant with increasing target distance but gradually decreases after reaching 10mm; decreases with increasing incidence angle; and decreases with increasing moving speed.