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测定某铁路隧道内粉尘颗粒的组成及粒径分布，并在隧道内进行现场除尘试验。粉尘测定结果表明：隧道内的粉尘主要为不规则石英砂、二氧化硅颗粒及氧化铝颗粒，粉尘主要以0.28mm的粒径为主。除尘试验结果表明：在除尘装置内测点1粉尘粒径在0.15～0.18 mm范围的占比较大，归因于受列车尾流区流场内运动的影响；测点2的粉尘粒径范围为0.18～0.28 mm，主要受湍流风场中获得动能而在流场中悬移的影响；测点3的粉尘粒径大于0.28 mm，主要原因是因惯性作用的跃起而在地面作蠕移运动，并最终沉积在地面上。
Abstract：Determine the composition and particle size distribution of dust particles in a railway tunnel, and conduct on-site dust removal tests in the tunnel. The dust measurement results show that the dust in the railway tunnel is mainly irregular quartz sand, silica particles, and alumina particles, with a particle size of 0.28 mm being the main type of dust. The dust removal test results show that the proportion of dust particles with a diameter ranging from 0.15 mm to 0.18 mm at measuring point 1 in the dust removal device is relatively large, which is attributed to the influence of the flow field in the wake area of the train; The dust particle size range of measuring point 2 is 0.18～0.28 mm, mainly affected by the kinetic energy obtained in the turbulent wind field and suspended in the flow field; The dust particle size at measuring point 3 is greater than 0.28 mm, mainly due to the creeping motion on the ground caused by the jumping effect of inertia, and ultimately deposited on the ground.
[1]向爱兵.世界铁路运输发展现状及趋势展望[J].中国市场，2012(49):83-84,128.
[2]中国国家铁路集团有限公司.2023年国家铁路主要指标完成情况[EB/OL].(2024-01-10)[2024-09-01]. http://www.china-railway. com. cn/wnfw/sjfw/202401/t20240117_132801.html.
[3]王文健，刘启跃.轮轨黏着行为与增黏[M].北京：科学出版社，2017:21-45.
[4] DING H H, FU Z K, WANG W J, et al. Investigation on the Effect of Rotational Speed on Rolling Wear and Damage Behaviors of Wheel/Rail Materials[J]. Wear,2015,330-331:563-570.
[5] GUO H Y,MAIORINO L C,LIU M,et al. Comparison of Wear and Rolling Contact Fatigue Behaviours of Bainitic and Pearlitic Rails under Various Rolling-Sliding Conditions[J]. Wear,2020,460-461:203455.
[6]黄新成，肖爱玲.跃移层内沙颗粒空中碰撞的模型仿真[J].计算机仿真，2014,31(11):245-248,260.
[7] SCOTT L, BORISSOVA A, RENZO A D, et al.Application of Coarse-Graining for Large Scale Simulation of Fluid and Particle Motion in Spiral Jet Mill by CFDDEM[J]. Powder Technology,2022,411:117962.
[8]王文健，岳子恒，向鹏程，等.列车轮轨增黏撒砂过程试验模拟与撒砂效果研究[J].机械工程学报，2023,59(22):424-432.
[9] ARIAS-CUEVAS O,LI Z,LEWIS R,et al. Laboratory Investigation of Some Sanding Parameters to Improve the Adhesion in Leaf-contaminated Wheel-rail Contacts[J].Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail Rapid Transit, 2010, 224(3):139-157.
[10] GAUTAM A, GREEN S I. Computational Fluid Dynamics-Discrete Element Method Simulation of Locomotive Sanders[J]. Proceedings of the Institution of Mechanical Engineers,Part F:Journal of Rail and Rapid Transit,2021,235(1):12-21.
[11]申鹏.轮轨黏着特性试验研究[D].成都：西南交通大学，2012.
[12] LEWIS R,DWYER-JOYCE R S. Wear at the Wheel/Rail Interface when Sanding is Used to Increase Adhesion[J].Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit,2006,220(1):29-41.
基本信息:
DOI：10.16374/j.cnki.issn2095-1671.2025.0054
中图分类号:U459.1
引用信息:
[1]郝悠酉,田源,侯芙蓉,等.某铁路隧道内粉尘粒径分布与除尘试验研究[J].铁路节能环保与安全卫生,2025,15(05):34-37.DOI:10.16374/j.cnki.issn2095-1671.2025.0054.