Research Progress of Dust Movement and Diffusion Laws in Excavation Roadway

Tunneling roadway is one of the main dust producing points in the mine, dust concentration in heading face is always extremely higher than national standards. This paper analyzed the research status of dust movement laws in excavation roadways, systematically summarized the movement and diffusion of dust under different ventilation modes of heading roadway （forced ventilation, exhausted ventilation, combined forced/exhausted ventilation） and the influence of ventilation parameters on dust removal efficiency, summarized the dust concentration movement laws under different ventilation modes and the optimal ventilation parameters under different ventilation modes, and proposed the future research on dust diffusion pollution in tunneling roadway in order to provide theoretical and technical support for mine dust prevention and control.