›› 2005, Vol. 26 ›› Issue (8): 1288-1293.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Cooling effectiveness analysis of the vent-pipe, cast-detritus and heat preservation material on protecting embankment in permafrost regions

WU Zhi-jian1,2, MA Wei1, SHENG Yu1, NIU Fu-jun1, SUN Zhi-zhong1   

  1. 1.State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou 730000, China; 2.Lanzhou Base of Earthquake Prediction Institute, CEA, Lanzhou 730000, China
  • Received:2003-10-13 Online:2005-08-10 Published:2013-12-26

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Abstract: Based on the local supervising data of air temperature decreasing period of Beiluhe testing segment of the Qinghai-Tibet Railway during the past two years, and through analyzing the ground temperature rule of the vent-pipe embankment, cast-detritus protecting slope embankment and heat preservation material embankment testing segments, and calculating the accumulating temperature of the above segments; the results show that the three engineering measures have some effects on protecting the permafrost roadbed. In some way, it can be used for reference in constructing the Qinghai-Tibet Railway in permafrost regions.

Key words: Qinghai-Tibet Railway, ground temperature, vent-pipe, cast-detritus, heat preservation material, cooling effectiveness.

CLC Number: 

  • U 21
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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