Long-Term Performance Study of High Moisture Content Cohesive Soil Subgrade in Seasonal Frozen Region

Abstract:

This project is aiming at the high water content clay in seasonally frozen ground region, based on the expressway program in Heilongjiang province. By applying laboratory test, field test, field monitoring and theoretical analysis, research has been proposed to understand the deformation law and long-term performance of high water content clay subgrade in freeze-thaw condition. From the comparison test of soil and soil treated with lime, road properties of high water content clay has been found out. It is a very necessary and effective method using lime to treat the high water content clay in subgrade construction. Laboratory freeze-thaw experiments uncover the strength weakening law of soil treated with lime. With theoretical analysis and numerical calculation, the interaction between clayey subgrade and pavement structure layer under effect of vehicle dynamic load is analyzed. According to this result, control standards of subgrade frost heave in seasonally frozen ground region and subgrade resilience modulus in spring have been proposed.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 49-56
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.49
• Online since: September 2013
• Authors: Sheng Chuan Liu, Gui Ling Ding, Gang Chen
• Keywords: High Moisture Content Clay, Long-Term Performance, Seasonal Frozen Region, Subgrade, Subgrade Frost Heave Control Standards

References

[1] Zhang D F, Wang S. Mechanism of freeze-thaw action in the process of soil salinization in northeast China [J]. Environmental Geology. 2001, 41, 96-100.

DOI: 10.1007/s002540100348

[2] Yarbasi N, Kalkan E, Akbulut S. Modification of the geotechnical properties, as influenced by freeze-thaw, of granular soils with waste additives [J]. Cold Regions Science and Technology. 2007, 48(l): 44-54.

DOI: 10.1016/j.coldregions.2006.09.009

[3] Croft J B. The influence of soil mineralogical composition on cement stabilization[J]. Geotechnique, 1967, 17, 119-135.

DOI: 10.1680/geot.1967.17.2.119

[4] Basma A A，Tuncer E R. Effect of lime on volume change and compressibility of expansive clays[J]. Transportation Research Board, Washington D C, TRR No, 1296, 1991, 54-61.

[5] Bell F G. Lime stabilization of clay minerals and soil[J]. Engineering Geology, 1996, 42, 223-237.

DOI: 10.1016/0013-7952(96)00028-2

[6] Sherpwood P T. Soil stabilization with cement and lime: state of the art review[M]. Transport Research Laboratory, (1993).

[7] Thompson M R. Lime reactivity of Illinois soils [J]. Journal of the Soil Mechanics and Foundations Division, 1966, 92(5), 67-92.

DOI: 10.1061/jsfeaq.0000911

[8] Ouhadi V R, Yong R N. The role of clay fraction of marly soils on their post stabilization failure [J]. Engineering Geology, 2003, 70(3-4), 365-375.

DOI: 10.1016/s0013-7952(03)00104-2

[9] Arabi M, Wild S. Property changes induced in clay soils when using lime stabilization [J]. Municipal Engineering, 1989, 6, 85-99.