›› 2010, Vol. 31 ›› Issue (8): 2448-2452.
• Fundamental Theroy and Experimental Research • Previous Articles Next Articles
YU Lin-lin1,XU Xue-yan1,QIU Ming-guo1, LI Peng-fei2,YAN Zi-li 2
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Abstract:
In order to reveal the regular influence of freezing-thawing cycle on shearing strength properties of road slope soil in seasonally frozen area, unconsolidated-undrained test was carried out on saturated undisturbed silty clay under different experimental conditions such as freezing and thawing temperature, freezing-thawing cycle index and open or closed system. The test results indicate that after freezing-thawing, cohesion decreases, but internal frictional angle increases; the lower freezing temperature is, the less influence of freezing-thawing cycle on cohesion and internal frictional angle is. As freezing-thawing cycle number increases, after 5-7times, the changes of shearing strength properties gradually become stable. Water supply can reinforce the influence of freezing-thawing on C and ; thawing temperature has a slight effect on the shearing strength properties of saturated undisturbed silty clay.
Key words: freezing-thawing cycle, saturated undisturbed silty clay, shearing strength properties, freezing and thawing temperature
CLC Number:
YU Lin-lin,XU Xue-yan,QIU Ming-guo, LI Peng-fei,YAN Zi-li. Influnce of freeze-thaw on shear strength properties of saturated silty clay[J]., 2010, 31(8): 2448-2452.
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http://ytlx.whrsm.ac.cn/EN/Y2010/V31/I8/2448
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