气候变化领域集成服务门户(CCPortal): Dynamic mechanism of blown sand hazard formation at the Jieqiong section of the Lhasa-Shigatse railway

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DOI	10.1080/19475705.2020.1863268
	Dynamic mechanism of blown sand hazard formation at the Jieqiong section of the Lhasa-Shigatse railway
	Xie, Shengbo; Qu, Jianjun; Pang, Yingjun; Zhang, Kecun; Wang, Chong
通讯作者	Xie, SB (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Peoples R China.
发表日期	2021
ISSN	1947-5705
EISSN	1947-5713
起始页码	153
结束页码	165
卷号	12 期号:1
英文摘要	Blown sand hazards at the Jieqiong section of the Lhasa-Shigatse railway are severe, and their formation mechanism is unclear. Moreover, sand prevention and control work cannot be carried out. Therefore, the dynamic mechanism of blown sand at the Jieqiong section of the Lhasa-Shigatse Railway was investigated by field observation, laboratory analysis, and calculation. Results show that the yearly sand-moving wind at the Jieqiong section commonly originates from the SW direction. The yearly resultant drift direction and the yearly resultant angle of the maximum possible sand transport quantity are NE direction. The angle between railway trend and sand transport direction is 5 degrees-30 degrees. During dry season, sand materials are blown up by the wind, forming wind-sand flow and movement to the NE direction, at which they are blocked by the railway roadbed. Consequently, accumulation occurs and causes serious damage. Strong wind and dryness are synchronous within a season. The directions of sand source and prevailing wind are consistent, thereby aggravating the blown sand dynamic further. The present results provide a reference for controlling sand hazards in the locale.
英文关键词	Lhasa– Shigatse railway; blown sand dynamic; sand transport; blown sand hazards
语种	英语
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS记录号	WOS:000605336000001
来源期刊	GEOMATICS NATURAL HAZARDS & RISK
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254425
作者单位	[Xie, Shengbo; Qu, Jianjun; Zhang, Kecun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Peoples R China; [Pang, Yingjun] Chinese Acad Forestry, Inst Desertificat Studies, Beijing, Peoples R China; [Wang, Chong] Lanzhou Univ, Sch Civil Engn & Mech, Key Lab Mech Disaster & Environm Western China, Minist Educ China, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Xie, Shengbo,Qu, Jianjun,Pang, Yingjun,et al. Dynamic mechanism of blown sand hazard formation at the Jieqiong section of the Lhasa-Shigatse railway[J]. 中国科学院西北生态环境资源研究院,2021,12(1).
APA	Xie, Shengbo,Qu, Jianjun,Pang, Yingjun,Zhang, Kecun,&Wang, Chong.(2021).Dynamic mechanism of blown sand hazard formation at the Jieqiong section of the Lhasa-Shigatse railway.GEOMATICS NATURAL HAZARDS & RISK,12(1).
MLA	Xie, Shengbo,et al."Dynamic mechanism of blown sand hazard formation at the Jieqiong section of the Lhasa-Shigatse railway".GEOMATICS NATURAL HAZARDS & RISK 12.1(2021).