Laboratory Test of Uniaxial Compressive Strength of Shanghai Frozen Soils under Freeze-Thaw Cycle

Abstract:

The artificial ground freezing (AGF) is now widely employed in constructions with the expanding underground space exploitation in Shanghai. In order to avoid geological disasters which might appear in the AGF practice, it is urgently needed to do laboratory tests on the physical and mechanical characters of Shanghai soft soil under freezing and thawing action. This paper tests three kinds of soils from the location ofShanghai Metro line 4 constructions in different state, i.e. original state, freeze-thaw state and secondary freeze-thaw state, and obtains the changing rules of soil characters under secondary freeze-thaw action.

• Periodical: Advanced Materials Research (Volume 716)
• Pages: 688-692
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.716.688
• Online since: July 2013
• Authors: Xiang Dong Hu, Jin Tai Wang, Xing Fu Yu
• Keywords: Artificial Ground Freezing (AGF), Freeze-Thaw Cycle, Frozen Soil, Laboratory Test, Uniaxial Compressive Strength

References

[1] Wang ZhenXin: International Conference on Deep Excavations (2006).

[2] Viklander, P,Cold Regions Science and Technology, Vol.27 (1998), p.141.

[3] MT/T 593.4-1996, Experimental on physical and mechanical properties of artificial frozen soil. (in Chinese)

[4] GB/T50123-1999, Standard for soil test method. (in Chinese)

[5] Tsytovich N.A., The Mechanics of Frozen Ground. (VysshayaShkola Publishers, Moscow 1973).

[6] Wu Ziwang:Journal of Glaciology and Geocryology, Vol.4(1982), p.43.