›› 2010, Vol. 31 ›› Issue (6): 1817-1821.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on infrared radiation temperature field of fabric-frozen soil interface during loading process

ZHAO Xiao-dong1,2，ZHOU Guo-qing1,2，BIE Xiao-yong3   

  1. 1. State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China; 2. School of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China; 3. Wuxi Municipal Engineering Design Institute, Wuxi, Jiangsu 214011, China
  • Received:2008-10-15 Online:2010-06-10 Published:2010-06-25

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Abstract:

In order to reveal the loading temperature distribution law of fabric-frozen soil interface , the generation, development and evolution for temperature fields of model pile-frozen soil interface was investigated with infrared thermal radiation imaging technique. The results show that there exists infrared radiation temperature rising phenomenon in pile-frozen soil interface during loading process. Before the pile slides, the low temperature areas in the thermal maps decrease both in density and dimension; and the temperature rising amplitude ?T as well as influencing width W at different depths D increase along with time; while ?T and W of the same time both decrease as the depth increases. After the pile has slid, the high temperature areas present a zonal distribution and display a trend of transfixion; in addition, the maximum temperature rising ?Tmax and the maximum area width influenced Wmax present a linear decreasing trend as the depth increases. The research results will provide reference for the applying of infrared radiation technique to the interface temperature field’s test of fabric-frozen soil in frozen regions.

Key words: interface of fabric-frozen soil, infrared radiation, temperature fields, distribution law

CLC Number: 

  • TU 445
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