This study systematically investigates the nonlinear regulatory mechanisms of key parameters on multi-regional particle distribution in solid-liquid coupled transport through comparative analysis of hoses with representative geometric configurations, elucidating the modulation patterns of geometric constraints and flow coupling effects on particle migration pathways. Key findings reveal that in the arched bend section, particles achieve re-suspension under the combined influence of boundary forces and centrifugal forces. Particles in the valley region accumulate at the pipe bottom and exhibit forward sliding motion through the coupled effects of centrifugal forces and gravitational forces. Near the entrance of the arched bend, hydrodynamic forces dominate particle aggregation behavior, with particle trajectories deflecting toward the pipe crown under the synergistic action of lift forces and centrifugal effects, forming unique radial distribution patterns. In the valley region, particles accumulate at the pipe bottom and exhibit forward sliding motion driven by centrifugal effects and gravitational forces. Comparative analysis of particle distributions across different hose geometries reveals that larger inclination angles in the riser section and smaller bend radii in the arched section improve radial particle distribution within the pipe, while hose geometry shows no significant impact on particle distribution in the valley.