In situ test study on the application effect of the thermosyphon along the Chaimu Railway

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	In situ test study on the application effect of the thermosyphon along the Chaimu Railway
	Zhang, B.2; Sheng, Y.2; Chen, J.2; Li, J.2; Chou, Y.L.1
	2011
会议日期	May 23, 2011 - May 27, 2011
会议地点	Hong Kong, China
关键词	Capillary flow Coal deposits Coal transportation Geotechnical engineering Permafrost Railroads Soil mechanics Thermosyphons Accumulated settlements Application effect Base temperature Ground temperature Ice-rich permafrost Qinghai Tibet plateau Railway construction Thermosyphon technology
英文摘要	The Chaimu Railway (CMR) is being constructed for the coal resource transportation in northern Qinghai-Tibet plateau. The total length of the line is 142km. The permafrost in this region is warm, ice-rich and unstable. For the purpose of cooling soil and stabilizing the subgrade, thermosyphon technique was adopted in a quarter of the whole line. Three monitoring sites with different mean annual ground temperatures have been arranged to study the thermosyphon effect since 2007. According to the ground temperature observation results, from 2007 to 2009, the thermosyphon could cool down the underlying permafrost and raise the artificial permafrost table. Analysis of the observational settlement data from 2008 to 2009 showed that the maximum accumulated settlements of test sections were about 5cm. The thermosyphon technology has obvious effect on decreasing the subgrade base temperature and protecting permafrost. Thus thermosyphon is applicable in railway construction in warm, ice-rich permafrost regions.
会议录	14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering
会议录出版者	Hong Kong Geotechnical Society (HKGES)
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116598]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou, China 2.State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China;
推荐引用方式 GB/T 7714	Zhang, B.,Sheng, Y.,Chen, J.,et al. In situ test study on the application effect of the thermosyphon along the Chaimu Railway[C]. 见:. Hong Kong, China. May 23, 2011 - May 27, 2011.