Abstract:Research purposes: The ventilation pipeline embankment engineering is a new type embankment structure, it posses the characteristic of reduce temperature and raise artificial permafrost table, ensure the railway embankment safely during the construction of the railway and normal working. Based on the special climatic conditions and characteristics of air circulation of Qinghai-Tibet plateau, this paper analyzes of the way of sir convection in ventilation pipe and applies the basic theory of heat transfer to research on heat transfer law of ventilation pipeline embankment in permafrost regions of Qinghai-Tibet plateau.
Research results: The paper, basil on the systematic analysis and research, advances heat transfer theory of ventilation pipeline embankment in permafrost regions of Qinghai-Tibet plateau. The author thought the ventilation pipeline embankment has three heat transfer mode, namely, forced convection air, natural convection heat transfer and heart exchange. And the maximum effectiveness of a reasonable length and pathway was gained through theoretical calculations and test results in permafrost regions of Qinghai-Tibet plateau.
蒋富强,杨永鹏. 青藏高原多年冻土区通风管路基传热规律研究[J]. 铁道工程学报, 2008, 25(11): 27-30.
JIANG Fu-Qiang,YANG Yong-pang. Research on the Heat Transfer Law of Ventilation Pipeline Embankment in Permafrost Regions of Qinghai-Tibet Plateau. 铁道工程学报, 2008, 25(11): 27-30.