| 兰新铁路十三间房段的戈壁风沙流特征分析 |
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| 引用本文： | 李凯崇,蒋富强,薛春晓,杨印海,葛盛昌.兰新铁路十三间房段的戈壁风沙流特征分析[J].铁道工程学报,2010(3). |
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| 作者姓名： | 李凯崇 蒋富强 薛春晓 杨印海 葛盛昌 |
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| 作者单位： | 1. 中铁西北科学研究院有限公司,兰州,730000
2. 乌鲁木齐铁路局,乌鲁木齐,830014 |
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| 基金项目： | 科技部科研院所专项资金项目 |
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| 摘 要： | 研究目的:通过对兰新铁路"百里风区"风沙成因进行分析,研究戈壁砾漠地区风沙流密度沿高度变化的特点,不同高度风沙流密度与风速的关系及大风携沙的粒径分布特征。研究结论:戈壁地区大风携沙主要集中在3 m以下,约占总携沙量的87%左右;在同一高度条件下,风沙流密度随着风速的增加显现e的指数增加;而当风速条件一致时,风沙流密度随着高度的增加显现下降趋势。集沙颗粒分析则指出:在不大于3 m的高度范围内百里风区的风沙流运动形式是以跃移为主;超过3 m以后,则以悬移为主。
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| 关 键 词： | 风沙流密度 戈壁 风沙运动 粒度高度分异 输沙率 |
Analysis of the Characteristics of Gobi Sand-driving wind in Shisanjianfang Section of Lanzhou-Xinjiang Railway |
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| LI Kai-chong,JIANG Fu-qiang,XUE Chun-xiao,YANG Yin-hai,GE Sheng-chang.Analysis of the Characteristics of Gobi Sand-driving wind in Shisanjianfang Section of Lanzhou-Xinjiang Railway[J].Journal of Railway Engineering Society,2010(3). |
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| Authors: | LI Kai-chong JIANG Fu-qiang XUE Chun-xiao YANG Yin-hai GE Sheng-chang |
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| Institution: | LI Kai-chong1,JIANG Fu-qiang1,XUE Chun-xiao1,YANG Yin-hai1,GE Sheng-chang2(1.Northwest Research Institute Co.Ltd of CREC,Lanzhou,Gansu 730000,China,2.Urumqi Railway Administration,Urumqi,Xinjiang 830014,China) |
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| Abstract: | Research purposes: By analysis of the forming reasons for wind-blown sand in 100 kilometers wind area along the Lanzhou-Xinjiang Railway,this paper researches the change characteristics of the density of the sand-driving wind with the height change,the relation between the density of wind-blown sand at the different heights and wind velocity,and the particle size distribution regulation of the wind blown sand in Gobi area.Research conclusions:The wind blown sand was mainly concentrated in the space of lower... |
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| Keywords: | density of wind-driving sand Gobi wind-blown sand movement grain size variation sediment discharge rate |
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