Abstract:Based on two year's data of ground temperature monitored at Beiluhe section of the Qinghai-Tibet Railway, where field-testing embankment was constructed, the engineering effect of duct-ventilation embankment is discussed through analyzing ground temperature changes. Results indicate that duct-ventilation embankment is available to protect the underlying permafrost and even can extend it. It is also Shawn that it is better to bury ducts near the initial ground surface, so that the engineering effect of ventilation embankment can be advanced.
牛富俊,马巍,赖远明. 青藏铁路管道通风路堤下土体的温度变化分析[J]. 铁道工程学报, 2003, 20(4): 29-32.
NIU Fu-jun, MA Wei, LAI Yuan-ming. ANALYSIS ON GROUND TEMPERATURE CHANGES OF THE SOILS UNDER DUCT-VENTILATION EMBANKMENT OF QINGHAI-TIBET RAILWAY. 铁道工程学报, 2003, 20(4): 29-32.
[1]G. H. Johnson. Permafrost Engineering Design and Construction[M]. Canada: Henter Rose Company, 1981.
[2] J. F. Nixon. Geothermal aspects of ventilated pad design[A]. In: Proceedings of the 3rd Int. Conf. on Permafrost[C]. Alberta, Canada, 1978. 841-846.
[3]John P. Zerling, P. E. Billy Connor and Douglus J. Goering. Air duct systems for Stabilization over permafrost area [A].In: Proceeding of the 4th Int. Conf. on Permafrost[C]. Washington, G. C: National Academy Press, 1983:1463-1468.
[4] Wang S L, Niu F J, Zhao L. et al. The thermal stability of roadbed in permafrost regions along Qinghai-Tibet Highway[J]. Cold Regions Science and Technology, 2003, 37:25-34.