›› 2004, Vol. 25 ›› Issue (7): 1041-1044.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on expansive deformation of tertiary red sandstone in Nanjing

ZHU Zhen-de1, 2, XING Fu-dong2, LIU Han-long2, ZHANG Yong2   

  1. 1. Key Lab of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
  • Received:2003-09-22 Online:2004-07-09 Published:2014-07-18

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Abstract: For the reason of special expansive characteristics of red sandstone, a series of experimental procedure performed in rock mechanics rigidity servo testing system (RMTS815.02) and rock oedometer, developed to determine the swelling behaviour of red sandstone taken from a foundation pit of Hongshanyao Project (HSYP) in Nanjing, is described. Based on the experimental data, an empirical formula of expansive strain with water content was expressed as . It is clear that the curve of expansive strain-water content is a logarithm. In the meantime, the relation of expansive strain with time was studied and the importance of expansive stabilization time was illuminated. The experimental results indicated that the water content has a tremendous effect on peak expansive and steady expansive deformation of swelling red sandstone; and it must be a momentous guide in the engineering design and construction.

Key words: red sandstone, expansive deformation, water content, experiment

CLC Number: 

  • TU 458+.3
  • 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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