干旱区生态环境知识资源中心(Arid): 沙漠地区高速公路防沙效应试验研究以营双高速公路八步沙段为例

Arid

	沙漠地区高速公路防沙效应试验研究以营双高速公路八步沙段为例
其他题名	Effects of Sand Prevention Measures Along Highways in Desert Areas A Case Study at Babusha Section, Yingshuang Highway
	高冠龙 1; 张小由 2; 杨凯 3; 韩致文 2; 贺晓萍 3; 徐定艳 3; 许克玺 3
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2017
卷号	37 期号:2 页码:17-20,26
中文摘要	[目的]对沙漠地区高速公路防沙效应进行试验研究,旨在为我国沙漠地区高速公路防沙体系建设提供理论依据和实践经验。[方法]针对营盘水(甘宁界)至古浪(双塔)高速公路八步沙沙漠段沙害的成因、类型,采取工程措施与生物措施相结合的防沙固沙方法开展试验研究。[结果](1)无论风速大小,功能性固沙障网间的有效防护距离要远好于均一型,且在网前近地处风速降低幅度要大于均一型。功能性防沙网后的防沙效益略低于均一型防沙网,但前者可有效抬升风沙流运行高度,极大减少过境风沙流对地面的侵蚀和地表沙粒的撞击起动,加之网间风速低于沙粒起动风速,进而起到固沙作用;(2)功能性固沙障上疏下密的孔隙结构有利于气流的抬升,降低防沙网上的风压,缓解防沙网的兜风问题,能有效解决固沙障底部的掏蚀问题。[结论]所采用的两种防沙网各具优点,可作为不同的防沙措施用于防沙。其中均一型可用来制作高立式阻沙沙障,而功能性防沙网可用来制作低矮的半隐蔽式格状沙障,二者均可用于替代传统的防沙材料,具有极大的应用价值和推广前景。
英文摘要	[Objective] The effects of sand-prevention along highways were observed to provid theorological basis and pratical experience for sand-prevention system in desert area. [Methods] According to the causes and types of sand-damage in Babusha desert area, cirresponding engineering and biological measurements were carried out to fix the sands. [Results] (1) Regardless of wind speed,the effective defending distance of internetwork of functional solid barriers were far greater than that of the uniform one. And also the reduction of wind speed near the ground before the nets of the functional solid barriers were greater. Though the sand-prevention effect of functional solid barriers behind the nets was a little worse than that of the uniform one, the sand flow was effectively uplifted. Whereby, sand errosion was reduced as a synergistic result of the decrease of sand movement by striking startup and the decrease of net-interwindspeed to the threshold of sand startup. (2) The functional solid barriers have a strcuture with thin upper part and close lower part, this structure can effectively uplift the wind flow, reducing the wind pressure upon the sediment control network and relieving the wind-catching problem. This can solve the erosion problem under the solid barriers. [Conclusion] The two kinds of sediment control networks both have their advantages. The uniform solid barriers can be used to make high upright solid barriers, and the functional solid barriers can be used to make short hidden solid barriers. The two types can both replace traditional materials and have great applicable value.
中文关键词	高速公路 ; 防沙固沙 ; 风沙危害
英文关键词	highway sand defense and solidification wind-sand hazard
语种	中文
国家	中国
收录类别	CSCD
WOS类目	TRANSPORTATION ; AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Transportation ; Agriculture
CSCD记录号	CSCD:5986125
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236623
作者单位	1.山西大学环境与资源学院, 太原, 山西 030006, 中国; 2.中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 3.甘肃省路桥建设集团有限公司, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	高冠龙,张小由,杨凯,等. 沙漠地区高速公路防沙效应试验研究以营双高速公路八步沙段为例[J]. 中国科学院西北生态环境资源研究院,2017,37(2):17-20,26.
APA	高冠龙.,张小由.,杨凯.,韩致文.,贺晓萍.,...&许克玺.(2017).沙漠地区高速公路防沙效应试验研究以营双高速公路八步沙段为例.水土保持通报,37(2),17-20,26.
MLA	高冠龙,et al."沙漠地区高速公路防沙效应试验研究以营双高速公路八步沙段为例".水土保持通报 37.2(2017):17-20,26.