干旱区生态环境知识资源中心(Arid): Protective effect of multi-row HDPE board sand fences: A wind tunnel study

Arid

DOI	10.1016/j.iswcr.2020.08.006
	Protective effect of multi-row HDPE board sand fences: A wind tunnel study
	Zhang, Kai; Zhao, Peiwen; Zhao, Jianchang; Zhang, Xingxin
通讯作者	Zhang, K (corresponding author), Lanzhou Jiaotong Univ, Coll Civil Engn, Lanzhou 730000, Peoples R China.
来源期刊	INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
ISSN	2095-6339
EISSN	2589-059X
出版年	2021
卷号	9 期号:1 页码:103-115
英文摘要	Recently, sand fences, made of high density polyethylene (HDPE) board, which is resistant against harsh plateau environmental conditions, could possibly be used to control the wind-blown sand along the Qinghai section of the Golmud-Korla Railway. In this paper, wind tunnel simulation was performed on the protective effect of multiple rows of HDPE board sand fences on wind-blown sand. Two parameters have been used to reflect the protective effect of sand fences, that is, windproof efficiency and sand control efficiency, referring to the reduction rates of wind speed at a height of 0.04 m and sand flux in a run of test with the fence compared those in the control run of test without it, respectively. The test results showed that when the porosity was 30%, the single-row sand fence had the best wind proof and sand control efficiency with respective values of 46% and 65.3%. The windproof efficiencies of double-row and triple-row sand fences at 20H were 59% and 62%, respectively. Compared with the windproof efficiency of the single-row sand fence, those of the two-row and three-row fences increased by 13% and 16%, respectively; The maximum sand control efficiency of the double-row and triple-row sand fences were 92.1% and 96.5%, increased by 26.8% and 31.2%, respectively, compared with that of the single-row sand fence. This study indicates that the sand control efficiency after adding one or two rows was not double or triple that of the single-row fence, while the first-row sand fence played a major protective role. Compared with the double-row sand fences, the effect of the third row sand fence in triple-row sand fences is limited, and thus double-row HDPE board sand fences with the porosity of 30% are recommended to control wind-blown sand along the Qinghai section of the Golmud-Korla Railway. (C) 2020 International Research and Training Center on Erosion and Sedimentation and China Water and Power Press. Production and Hosting by Elsevier B.V.
英文关键词	HDPE board sand fences Windproof efficiency Sand control efficiency Reasonable spacing Porosity
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000614576700010
WOS关键词	POROUS FENCES ; TRIANGULAR PRISM ; FLOW-FIELDS ; VELOCITY ; SIMULATION ; WINDBREAKS ; PRESSURE ; RAILWAY ; SURFACE ; DESERT
WOS类目	Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350612
作者单位	[Zhang, Kai; Zhao, Jianchang; Zhang, Xingxin] Lanzhou Jiaotong Univ, Coll Civil Engn, Lanzhou 730000, Peoples R China; [Zhao, Peiwen] Lanzhou Jiaotong Univ, Sch Econ & Management, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Kai,Zhao, Peiwen,Zhao, Jianchang,et al. Protective effect of multi-row HDPE board sand fences: A wind tunnel study[J],2021,9(1):103-115.
APA	Zhang, Kai,Zhao, Peiwen,Zhao, Jianchang,&Zhang, Xingxin.(2021).Protective effect of multi-row HDPE board sand fences: A wind tunnel study.INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,9(1),103-115.
MLA	Zhang, Kai,et al."Protective effect of multi-row HDPE board sand fences: A wind tunnel study".INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH 9.1(2021):103-115.