›› 2012, Vol. 33 ›› Issue (1): 12-16.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study of thermal consolidation of a saturated silty clay

BAI Bing，SU Zhong-qin，YANG Hai-peng   

  1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2011-05-27 Online:2012-01-10 Published:2012-01-17

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Abstract: The consolidation characteristics of a saturated silty clay under thermal loading are discussed. Test results show that, for various confining pressures, the evolution patterns of whether pore pressure or volumetric strain is similar. In the process of temperature rising, the pore pressure increases continually with elapsed time, and the pore pressure also reaches to a peak pore pressure (or a steady value) when the specimen is heated to a required higher temperature value. Furthermore, this peak pore pressure increases as the confining pressure increases. Besides, the consolidation volumetric strain (i.e., shrinkage deformation) by heating is greater than the volumetric strain (i.e., expansion deformation) by cooling; in other words, the specimen totally takes on a shrinkage effect after a complete process of heating and cooling.

Key words: silty clay, thermal consolidation, temperature rising process, shrinkage effect

CLC Number: 

  • TU 411
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