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	两种典型高等级公路路基断面风沙过程的风洞模拟
其他题名	Wind Tunnel Simulation of Aeolian Sand Process in Subgrade Section of Two Typical High-Grade Highway
	鱼燕萍 1; 肖建华 2; 屈建军2 ; 李芳 2; 李万强 3; 潘多明 3; 吴青瑞 3; 洪雪峰 3; 田永祯 4
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2019
卷号	39 期号:1 页码:68-79
中文摘要	高等级公路路基中央构筑物不同,对路基断面风沙输移-堆积过程产生的影响不同。选取两种典型高等级公路路基,对其风沙输移-堆积过程进行了风洞模拟试验。结果表明:当路基模型高度为4 cm(路基模型与实际路基比例为1 ∶ 100)时,随着风速增大,防眩板路基背风侧积沙范围增大较为明显;在相同风速条件下,防眩网路基两侧积沙范围较大,对应的工程防护范围也应较大。当路基模型高度为8 cm时,防眩网路基路面积沙较多,背风侧积沙范围较大。路基越高,相应的工程防护范围应设置的较大一些,并加强对路基迎风坡的维护。建议在两种高等级路基背风侧5H(H为路基高度)以外范围增设风沙防护设施,尤其是防眩网路基,防止沙粒堆积被反向气流携带上路,影响交通安全。防眩板路基背风坡沙物质积累较多,为了防止背风坡积沙变成二次沙源危害道路行车安全,防眩板路基背风侧也需重点防护。在主风向单一的沙漠地区,高等级公路路基中央隔离带的防眩设施宜选择防眩板。
英文摘要	The difference of central structure of high-grade highway will affect the process of aeolian sand transportaccumulation in the subgrade cross section in different degrees. When the height of the subgrade is 4 cm (the ratio of subgrade model to actual subgrade is 1 ∶ 100) ,the increasing trend of leeward side sand accumulation range of anti-glare board subgrade is more pronounced with the increasing wind speed. Under the same wind speed,the range of sand accumulation on both sides of anti-glare subgrade is larger,and the corresponding scope of the engineering protection should be increased accordingly. When the subgrade height is 8 cm,the anti-glare net subgrade has a large amount of sand accumulated on the road surface and a large area covered by sand on the leeward side, therefore,the corresponding protection range should be also relatively large in actual engineering maintenance. The higher the subgrade is,the larger the corresponding scope of the engineering protection should be,and it is necessary to strengthen the maintenance of the windward slope,especially the anti-glare board subgrade. In addition,more sand control facilities should be provided beyond the range of 5H (H represents the height of highway) on the leeward side of the two high-grade subgrade,especially anti-glare subgrade,this purpose is to prevent the sand accumulated on road surface from being carried away by the reverse air flow and affecting the traffic safety. There is more sediment material accumulation on the anti-glare board subgrade leeward slope. So in order to prevent the second sand hazard endangering the safety of the highway vehicles,the leeward side of the anti-glare board subgrade also need to be focused on protection. Finally,the anti-glare board facilities should be used for the central structure of high-grade highway in the desert areas with single main wind direction.
中文关键词	高等级公路路基 ; 风洞模拟 ; 防眩网 ; 防眩板 ; 流场 ; 风速廓线
英文关键词	high-grade highway subgrade wind tunnel simulation anti-glare net anti-glare board flow field wind speed profile
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6423847
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/2XILL650/239772
作者单位	1.中国科学院西北生态环境资源研究院;;中国科学院大学, 中国科学院敦煌戈壁荒漠生态与环境研究站;;甘肃省风沙灾害防治工程技术研究中心;;, 兰州;;, 甘肃;;北京 730000;;100049, 中国; 2.中国科学院西北生态环境资源研究院, 中国科学院敦煌戈壁荒漠生态与环境研究站;;甘肃省风沙灾害防治工程技术研究中心, 兰州, 甘肃 730000, 中国; 3.阿拉善盟公路管理局, 阿拉善, 内蒙古 750306, 中国; 4.阿拉善盟林业治沙研究所, 阿拉善, 内蒙古 750306, 中国
推荐引用方式 GB/T 7714	鱼燕萍,肖建华,屈建军,等. 两种典型高等级公路路基断面风沙过程的风洞模拟[J]. 中国科学院西北生态环境资源研究院,2019,39(1):68-79.
APA	鱼燕萍.,肖建华.,屈建军.,李芳.,李万强.,...&田永祯.(2019).两种典型高等级公路路基断面风沙过程的风洞模拟.中国沙漠,39(1),68-79.
MLA	鱼燕萍,et al."两种典型高等级公路路基断面风沙过程的风洞模拟".中国沙漠 39.1(2019):68-79.