Effects of Freezing-Thawing Cycle of Compressibility of Cement Soil

Abstract:

Based on the safety and durability in the cement soil engineering about the pits anti-seepage, embankment impermeable walls and subgrade strengthening in the frozen regions and the retaining walls in foundation pits, the experiments on the compressibility about the cement soil under freezing-thawing cycle, infiltrated and other environmental-action conditions have been carried out and the influential laws of environmental actions on the compression parameter of cement soil have been obtained. The results show that the various environmental actions may have influences on compressibility of cement soil at different levels, and the environmental effects on the compressibility of cement soil in the engineering applications and designs, such as impermeable walls or in the frozen regions, should be taken into account, and the void ratio and the coefficient of compressibility will increase with the increase of freezing-thawing cycle times and infiltration time but the compression modulus will decrease with the increase of freezing-thawing cycle times and infiltration time so that the curve regression equation about the void ratio, the coefficient of compressibility and compression modulus varying with the freezing-thawing cycle times and the infiltration time has been established. The results are significant and valuable to the safety and the durability of cement soil engineering.

• Periodical: Applied Mechanics and Materials (Volume 419)
• Pages: 837-841
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.419.837
• Online since: October 2013
• Authors: Si Li Chen, Jian Jun Shi, Tao Yu, Jie Huang, Kai He Dong
• Keywords: Cement Soil, Compressibility, Effect, Environmental Action

References

[1] Chen Sili, Ning Baokuan. Environment effect of Geotechnical material[M]. Beijing: metallurgical industry press, 2010. (in Chinese).

[2] Ning Baokuan, Chen Sili, Ding Wuxiu, Huang Jie. Analysis of meso-fracture process of cemented soil under environmental erosion[J]. Rock and Soil Mechanics, 2009, 10(8): 2215-2219. (in Chinese).

[3] Ning Baokuan, Chen Sili, Liu Bin, Liu Yifang. Experimental study of cemented soil under environmental erosion[J]. Rock and Soil Mechanics, 2005, 26(4): 600-603. (in Chinese).

[4] Wang Jun, Ding Guangya, Pan Linyou, Cai Yuanqiang, Gao Yufeng. Study of mechanics behavior and constitutive model of cemented soil under static triaxial tests[J]. Rock and Soil Mechanics, 2010，31(5)：1407-1412. (in Chinese).

[5] Ji Xiaolei, Zhu Fengbin. Laboratory experimental study of the unconfined compressive strength of soil-cement[J]. Sichuan Building Science, 2011, 37(5): 146-148. (in Chinese).

[6] Liang Renwang, Zhang Ming, Bai Xiaohong. Analysis of laboratory test results of cemented soil[J], Rock and Soft Mechanics，2001，22(2)：211~213. (in Chinese).