Influence of inclination angle on dust migration and settlement characteristics of excavation roadway
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Updated: Sep 6, 2025

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
Xiangyu Xu1,2,3, Jianping Wei4,5,6, Mengyuan Wang4,5
1School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, Henan, China. xuxiangyu@hpu.edu.cn.
Abstract:
The migration law of dust in the roadway is the basis of dust control, but most of the relevant studies are based on the horizontal roadway, ignoring the roadway inclination. Therefore, numerical simulation and similar experiments are used to systematically study the settlement and diffusion law of dust in roadways with different inclination angles. The results show that the roadway inclination has little effect on the structure of the convection field, but the roadway inclination will change the law of dust transport in the roadway. In the elevation roadway, with the increase of elevation, the settling particle size and distance of dust will increase, which is conducive to dust discharge, but it will also cause secondary dust in the roadway. In the depression angle roadway, with the increase of depression angle, the particle size and distance of dust settlement decrease, which is conducive to dust settlement, but will cause dust accumulation in front of the roadway. Based on this, it is proposed to reduce the wind speed in elevation roadway and increase the wind speed in depression roadway, which provides a basis for improving the dust transport theory and prevention and control work in heading roadway.
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