›› 2007, Vol. 28 ›› Issue (8): 1650-1654.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Multivariate stepwise regression method use in correlation analysis of microstructure indices and strength of solidified soil

WANG Zhi-qiang1，CHAI Shou-xi2，ZHONG Xiao-mei3，GUO Ying4，WANG Xiao-yan2，WEI Li2   

  1. 1. College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China; 2. Department of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China; 3. The 3rd Engineering Co. Ltd., The 12th bureau Group of China Railway, Taiyuan 030024, China； 4. Institute of Investigation, China Water Resources, Beifang Investigation, Design and Research Co. Ltd., Tianjin 300222, China
  • Received:2006-07-13 Online:2007-08-10 Published:2013-10-15

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Abstract: Solidifying saline soil in inshore with different quantities of salt using lime, which causes the microstructure indices and strength of saline soil change obviously and increase greatly. It has been proved that strength has good correlation with microstructure indices with the help of multivariate stepwise regression method; and the five indices, including particle granularity fractal, particle orientation fractal, particle diameter, particle oblate degree, and particle area ratio, are the significant indices effected on the strength of solidified saline soil in inshore with lime. According to calculation results of microstructure indices, its fractal, and strength, solidifying mechanism of lime-saline soil can be certified from another aspect.

Key words: saline soil in inshore, indices of soil microstructure, multivariate stepwise regression method, unconfined compression strength, shear strength, solidified soil

CLC Number: 

  • TU 448
  • 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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