Arid
DOI10.1007/s11769-014-0722-1
Influence of Golmud-Lhasa Section of Qinghai-Tibet Railway on Blown Sand Transport
Xiao Jianhua1,2; Yao Zhengyi1; Qu Jianjun1,2,3
通讯作者Qu Jianjun
来源期刊CHINESE GEOGRAPHICAL SCIENCE
ISSN1002-0063
EISSN1993-064X
出版年2015
卷号25期号:1页码:39-50
英文摘要

The Qinghai-Tibet Railway (QTR) passes through 281 km of sandy land, 11.07 km of which causes serious sand damage to the railway and thus, the control of blown sand is important for the safe operation of the railway. Construction of the railway and sand prevention system greatly changed the blown sand transport of the primary surface. Effective and feasible sand-control measures include stone checkerboard barriers (SCBs), sand fences (SFs), and gravel coverings. This study simulated the embankments, SCBs and SFs of the QTR in a wind tunnel, and analyzed their respective wind profile, sand deposition, and sand-blocking rate (SBR) in conjunction with field data, aiming at studying the influence of Golmud-Lhasa section of the QTR and sand prevention system on blown sand transport. The results of wind tunnel experiments showed that wind speed increased by 67.7%-77.3% at the upwind shoulder of the embankment and decreased by 50.0%-83.3% at upwind foot of embankment. Wind speed decreased by 50.0%-100.0% after passing through the first SF, and 72.2%-100.0% after the first row of stones within the first SCB grid. In the experiment of sand deposition, the higher the wind speed, the lower the SBR of SCB and SF. From field investigation, the amount of sand blocked by the four SFs decreased exponentially and its SBR was about 50.0%. By contrast, SCB could only block lower amounts of sand, but had a higher SBR (96.7%) than SF. Although, results show that SFs and SCBs along the Golmud-Lhasa section of the QTR provide an obvious sand blocking effect, they lead to the deposition of a large amount of sand, which forms artificial dunes and becomes a new source of sand damage.


英文关键词Qinghai-Tibet Railway (QTR) wind profile blown sand transport sand damage wind tunnel
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000351088100004
WOS关键词HIGHWAY ; DESERT ; DESERTIFICATION ; PERMAFROST ; PLATEAU ; REGION
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
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/2XILL650/186473
作者单位1.Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China;
2.Chinese Acad Sci, Dunhuang Gobi & Desert Ecol & Environm Res Stn, Cold & Arid Reg Environm & Engn Res Inst, Dunhuang 736200, Peoples R China;
3.Gansu Ctr Sand Hazard Reduct Engn & Technol, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Xiao Jianhua,Yao Zhengyi,Qu Jianjun. Influence of Golmud-Lhasa Section of Qinghai-Tibet Railway on Blown Sand Transport[J]. 中国科学院西北生态环境资源研究院,2015,25(1):39-50.
APA Xiao Jianhua,Yao Zhengyi,&Qu Jianjun.(2015).Influence of Golmud-Lhasa Section of Qinghai-Tibet Railway on Blown Sand Transport.CHINESE GEOGRAPHICAL SCIENCE,25(1),39-50.
MLA Xiao Jianhua,et al."Influence of Golmud-Lhasa Section of Qinghai-Tibet Railway on Blown Sand Transport".CHINESE GEOGRAPHICAL SCIENCE 25.1(2015):39-50.
条目包含的文件
文件名称/大小 资源类型 版本类型 开放类型 使用许可
Influence of Golmud-(6614KB)期刊论文出版稿开放获取CC BY-NC-SA浏览
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xiao Jianhua]的文章
[Yao Zhengyi]的文章
[Qu Jianjun]的文章
百度学术
百度学术中相似的文章
[Xiao Jianhua]的文章
[Yao Zhengyi]的文章
[Qu Jianjun]的文章
必应学术
必应学术中相似的文章
[Xiao Jianhua]的文章
[Yao Zhengyi]的文章
[Qu Jianjun]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Influence of Golmud-Lhasa Section of Qinghai-Tibet Railway on Blown Sand Transport.pdf
格式: Adobe PDF
此文件暂不支持浏览

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。