气候变化领域集成服务门户(CCPortal): Study on the geometric parameters of elbow ventiduct embankment in permafrost regions along the Qinghai-Tibet Engineering Corridor

CCPortal

DOI	10.1016/j.coldregions.2020.103209
	Study on the geometric parameters of elbow ventiduct embankment in permafrost regions along the Qinghai-Tibet Engineering Corridor
	Yu, Wenbing; Yi, Xin; Han, Fenglei; Pei, Wansheng; Chen, Lin
通讯作者	Yi, X (通讯作者)，East China Univ Technol, Sch Civil & Architecture Engn, Nanchang, Jiangxi, Peoples R China.
发表日期	2021
ISSN	0165-232X
EISSN	1872-7441
卷号	182
英文摘要	Using cold air to cool down infrastructures in permafrost regions is a common technique, but the horizontal ventiduct method has defects. This paper presents the elbow-shaped ventiduct and focuses on its designing parameters, considering the regional climate along the Qinghai-Tibet Engineering Corridor. Based on the natural convection principle, a program for calculating the parameters of the elbow ventiduct of embankment is compiled. By using this program and according to the climatic conditions, the required freezing radius of elbow ventiduct is calculated, and the specific thermal parameters of elbow ventiduct in different climatic regions are calculated. Results show that the lower the average temperature is, the smaller the required freezing radius is. The required freezing radius at Anduo, Kaixinling, Liangdaogou, and the Buqu Valley are 2.45 m, 1.7 m, 1.13 m, and 0.54 m, respectively, and the corresponding longest horizontal pipes that can be used are 32 m, 101 m, 228 m and 799 m, respectively. The regions where the elbow-shaped ventiduct are not suitable or not necessary are figured out. Results also show that the bigger the pipe diameter, the longer the maximum allowable length of horizontal pipe; the higher the vertical pipe length, the longer maximum allowable length of horizontal pipe.
关键词	2-PHASE CLOSED THERMOSIPHONS COOLING PERFORMANCE IN-SITU HIGHWAY TEMPERATURE DUCTS
英文关键词	Permafrost; Embankment; Elbow-shape ventiduct; Freezing radius
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS记录号	WOS:000612543800004
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
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/254702
作者单位	[Yu, Wenbing; Han, Fenglei] Chongqing Jiaotong Univ, State Key Lab Mt Bridge & Tunnel Engn, Chongqing, Peoples R China; [Yi, Xin] East China Univ Technol, Sch Civil & Architecture Engn, Nanchang, Jiangxi, Peoples R China; [Yu, Wenbing; Yi, Xin; Pei, Wansheng; Chen, Lin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China; [Yu, Wenbing; Han, Fenglei] Chongqing Jiaotong Univ, Sch Civil Engn, Chongqing, Peoples R China
推荐引用方式 GB/T 7714	Yu, Wenbing,Yi, Xin,Han, Fenglei,et al. Study on the geometric parameters of elbow ventiduct embankment in permafrost regions along the Qinghai-Tibet Engineering Corridor[J]. 中国科学院西北生态环境资源研究院,2021,182.
APA	Yu, Wenbing,Yi, Xin,Han, Fenglei,Pei, Wansheng,&Chen, Lin.(2021).Study on the geometric parameters of elbow ventiduct embankment in permafrost regions along the Qinghai-Tibet Engineering Corridor.COLD REGIONS SCIENCE AND TECHNOLOGY,182.
MLA	Yu, Wenbing,et al."Study on the geometric parameters of elbow ventiduct embankment in permafrost regions along the Qinghai-Tibet Engineering Corridor".COLD REGIONS SCIENCE AND TECHNOLOGY 182(2021).