干旱区生态环境知识资源中心(Arid): Effects of windblown sand damage on desert highway guardrails

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DOI	10.1007/s11069-020-03987-w
	Effects of windblown sand damage on desert highway guardrails
	Wang, Cui 1,2,3; Li, Shengyu2 ; Li, Zhinong 3; Lei, Jiaqiang2 ; Chen, Jie 3
通讯作者	Wang, Cui
来源期刊	NATURAL HAZARDS
ISSN	0921-030X
EISSN	1573-0840
出版年	2020
卷号	103 期号:1 页码:283-298
英文摘要	Barriers, which are normally used as highway safety instruments, cause adverse sand deposition damage to pavements along desert highways. To select a suitable barrier type for desert highways, this study conducted wind tunnel experiments and field test to measure the velocity field and sediment deposition morphology for different types of barriers. The results indicate that the velocity decreases in the foot of the subgrade, and the smooth air flow is maintained along the pavement. Wind velocity decreases slightly under the W-beam bottom, and the maximum velocity reduction is in the lee of the W-beam barrier. Wind velocity considerably decreases before and after the concrete barrier because of the dense structure of the barrier. Cable barriers slightly disturb the air flow and marginally decrease its velocity. Sediment deposition characteristic measurements demonstrate that for W-beam median barrier, sand is deposited on pavement in the lee of the barrier; further, for both W-beam roadside barrier and median barriers, sand is easy to be deposited in the front and back of the barrier, mainly on the windward pavement. For concrete barriers, considerable amount of sand is deposited in the front and back of the barriers, which induces the serious sand deposition damage on the pavement. The cable barrier causes minimal sand deposition, and it is a recommended structure for the barrier selection of desert highways. Further, small wind incidence angles are also favorable when designing desert highways.
英文关键词	Wind field Sand deposition morphology Barrier types Wind tunnel experiment Field test
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000533192300001
WOS关键词	WIND-TUNNEL SIMULATION ; VELOCITY ; EROSION ; FENCES ; PERFORMANCE ; BARRIERS ; ROADSIDE ; SHELTER ; FLOW
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319123
作者单位	1.Xinjiang Univ, Coll Resource & Environm Sci, Xinjiang 830000, Peoples R China; 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang 830000, Peoples R China; 3.Minist Transport, Key Lab Highway Engn Technol Arid & Desert Reg, Xinjiang 830000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Cui,Li, Shengyu,Li, Zhinong,et al. Effects of windblown sand damage on desert highway guardrails[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2020,103(1):283-298.
APA	Wang, Cui,Li, Shengyu,Li, Zhinong,Lei, Jiaqiang,&Chen, Jie.(2020).Effects of windblown sand damage on desert highway guardrails.NATURAL HAZARDS,103(1),283-298.
MLA	Wang, Cui,et al."Effects of windblown sand damage on desert highway guardrails".NATURAL HAZARDS 103.1(2020):283-298.