高原与戈壁地区风沙流结构特性差异研究

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摘要研究目的:通过现场实测及室内试验等研究手段，分析研究了青藏高原和新疆戈壁强风地区风沙流运动变化规律，探讨了二者风沙流结构差异及具体表现形式，为上述地区风沙灾害防护工程的设计施工提供-定的基础数据及理论支撑。

研究结论:(1)受风力筛选作用的影响，风沙流中沙粒粒径组成呈现正态分布，都以小于0. 25 mm粒径段的沙粒为主;(2)青藏高原和戈壁强风地区的起沙风速存在明显的差异，戈壁地区起沙风速约为 11. 0-20. 0 m/s，远大于青藏高原地区7. 0 m/s的起沙风速;(3)大风携沙量与高度呈现e的幂指数变化，随着高度的增加，大风携沙量呈下降的趋势;(4)在近地表0.5 m高度范围内，青藏高原地区的集沙量为总集沙量的90%左右，而戈壁强风地区仅为76% ; (5)本研究成果可以为类似环境条件下风沙灾害防护工程的设计修建提供-定的参考。

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	李凯崇
	薛春晓
	蒋富强
	刘贺业

关键词 ：青藏高原, 戈壁, 起沙风速, 风沙流结构

Abstract：Research purposes ： Through the research and analysis of field test and laboratory test data of Qinghai - Tibet Plateau and the Xinjiang Gobi area, the characteristics and the main manifestation of sand - drift between them are discussed, which will provide some fundamental data and theoretical basis for the design and the construction of sand disaster protection engineering in these area.

Research conclusions ： (I) The result of sand particle size analysis shows that the mostly segment is less than 0. 25 mm in sand drift movement. (2) The different characteristics of sand — drift have been discovered between Xinjiang Gobi and Qinghai — Tibet Plateau. The wind speed causing erosion is about 11.0 ~ 20. 0 m/s in Xinjiang Gobi area, which is much larger than 7.0 m/s in the Qinghai — Tibet Plateau. (3) The laws of wind carrying sediment changes with height are described by power function，and the wind carrying sediment is decreased with height increasing. (4) Sand transport capacity attains to almost 90% of total capacity within 0. 5 meters in Qinghai - Tibet Plateau, but it is only 76% in Xinjiang Gobi area. (5) The research results can provide some references for the design and the construction of sand disaster protection engineering in the similar surroundings.

Key words： Qinghai - Tibet Plateau gobi wind speed causing erosion sand flow structure

收稿日期: 2013-08-30

PACS:

U216.413

基金资助:新疆维吾尔自治区重大科技专项（201130106 -3)资助

作者简介: 李凯崇，1984年出生,男,工程师

引用本文:

李凯崇,薛春晓,蒋富强,刘贺业. 高原与戈壁地区风沙流结构特性差异研究[J]. 铁道工程学报, 2014, 31(7): 7-11.
LI Kai - chong，XUE Chun - xiao, JIANG Fu - qiang,LIU He - ye. Research on the Different Characteristics of Sand - drift between Gobi and Plateau. 铁道工程学报, 2014, 31(7): 7-11.

链接本文:

http://tdgcxb.crec.cn/CN/ 或 http://tdgcxb.crec.cn/CN/Y2014/V31/I7/7

[1]黄宁，郑晓静风沙运动力学机理研究的历史、进展与趋势[J].力学与实践，2007( 4):10-17.

Huang Ning，Zheng Xiaojing. Research History， Achievements and Trend on Mechanism of Aeolian Transport [ J ]. Mechanics in Engineering，2007 (4 )： 10-17.

[2 ] Mckenna - Neuman, C. Effects of Temperature and Humidity upon the Transport of Sedimentary Particles by Wind[ J ]. Sedimentology，2004，51，I -17.

[3张克存，屈建军，姐瑞平，等戈壁风沙流结构和风速廓线特征研究[J].水土保持研究，2005(1):54-55.

Zhang Kecun，Qu Jianjun，Zu Ruiping，etc. Research on the Characteristics of Structure of Drifting Sand Flux and Wind Velocity Profile over Gobi[ J]. Research of Soil and Water Conservation,2005(1) :54 -55.

[4]李凯崇，蒋富强，薛春晓，等.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): 15 - 18.

Li Kaichong，Jiang Fuqiang，Xue Chunxiao，etc. Analysis of the Characteristics of Gobi Sand - driving Wind in Shisanjianfang Section of Lanzhou - Xinjiang Railway[ J ]. Journal of Railway Engineering Society, 2010(3) :15-18.

[5]韩致文，王涛，董治宝，等风沙危害防治的主要工程措施及其机理[J]..地理科学进展，2004 (1):13-21

Han Zhiwen，Wang Tao，Dong Zhibao，etc. Main Engineering Measurements and Mechanism of Blown Sand Hazard Control [ J ]. Progress in Geography，2004 (1):13-21.

[6 ]王翔宇，朴东均，丁国栋，等.流动沙丘风沙流结构的定量研究[J].水土保持研究，2008(2) :36 -39.

Wang Xiangyu, Dongkyun Park, Ding Guodong，etc. Study of the Wind - sand Flow Structure on Flowing Sand [ J ]. Research of Soil and Water Conservation, 2008(2) :36-39.

[7] 屈建军，黄宁，拓万全，等.戈壁风沙流结构特性及其意义[J].地球科学进展，2005(1):19-23.

Qu Jianjun， Huang Ning, Ta Wanquan， etc. Structural Characteristics of Gobi Sand - drift and Its Singifiicance[ J]. Advances in Earth Science，2005(1)： 19 -23.

[8 ] Ke - Cun Zhang，Jian - Jun Qu，Kong - Tai Liao，etc. Damage by Wind - Blown Sand and Its Control along Qinghai - Tibet Railway in China [ J ]. Aeolian Research,2010(1) :143 -146.

[9] 慕青松，苗天德，马崇武不均匀沙起动理论及戈壁风蚀层形成动力学[J]..中国沙漠，2004 ( 3 ) ; 268 - 273

Mu Qingsong，Miao Tiande，Ma Chongwu. Threshold Velocity for Mixlsized Sand and Formation Dynamics of Gravel Surface [ J]. Journal of Desert Research，2004(3):268 -273.

[10]武建军，罗生虎，闫光虎，等.脉动风场下风沙流结构的数值模拟[J].中国沙漠，中国沙漠.2011 (3):602 -606.

Wu Jianjun，Luo Shenghu，Yan Guanghu，etc. Numerical Simulation on Windblown Sand Cloud in the Fluctuating Wind Field [ J ]. Journal of Desert Research, 2011(3) :602 -606.

[11]蒋富强，李荧，等.兰新铁路百里风区风沙流结构特性研究[J].铁道学报，2010(3) :105 -110.

Jiang Fuqian，Li Ying，etc. Study on Structural Characteristics of Gobi Wind Sand Flow in 100 km Wind Area along Lan - Xin Rail way [ J]. Journal of the China Railway Society,2010(3) :105-110.

[12]程建军，蒋富强，等.戈壁铁路沿线风沙灾害特征与挡风沙措施及功效研究[J].中国铁道科学，2010(5):15 -20.

Cheng Jianjun，Jiang Fuqiang, etc. Study on the Hazard Characteristics of the Drifting Sand along the Railway in Gobi Area and the Efficacy of the Control Engineering Measures [ J ]. China Railway Science, 2010 (5) ： 15 - 20.

[13]葛盛昌，蒋富强.兰新铁路强风地区风沙成因及挡风墙防风效果分析[J].铁道工程学报，2009(5):1-4.

Ge Shengchang，Jiang Fuqiang. Analyses of the Causes Forwind Disaster in Strong Wind Area along Lanzhou - Xinjiang Railway and the Effect of Windbreak [ J ]. Journal of Railway Engineering Society ,2009(5) ：1 -4.