Sciences in Cold and Arid Regions ›› 2017, Vol. 9 ›› Issue (3): 273–279.doi: 10.3724/SP.J.1226.2017.00273

• ARTICLES • 上一篇    

Frost-heave properties of saturated compacted silty clay under one-side freezing condition

HongYan Ma1,2, Feng Zhang2, DeCheng Feng2, KangWei Tang2   

  1. 1. College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350116, China;
    2. School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
  • 收稿日期:2016-11-26 修回日期:2016-12-26 发布日期:2018-11-23
  • 通讯作者: Ma HongYan, HongYan Ma, Ph.D., assistant professor, Fuzhou University, No. 2, Xueyuan Street, Fuzhou 350116, China. Tel: +86-13003829587; E-mail: mhyhit@163.com E-mail:mhyhit@163.com
  • 基金资助:
    This research is supported by the National Key Basic Research Development Plan (2012CB026104),the National Natural Science Foundation of China (Nos. 51408163 and 51578200),the Natural Science Foundation of Heilongjiang Province (No. ZD201218),and the Research Foundation of Fuzhou University (510406).

Frost-heave properties of saturated compacted silty clay under one-side freezing condition

HongYan Ma1,2, Feng Zhang2, DeCheng Feng2, KangWei Tang2   

  1. 1. College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350116, China;
    2. School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
  • Received:2016-11-26 Revised:2016-12-26 Published:2018-11-23
  • Contact: Ma HongYan, HongYan Ma, Ph.D., assistant professor, Fuzhou University, No. 2, Xueyuan Street, Fuzhou 350116, China. Tel: +86-13003829587; E-mail: mhyhit@163.com E-mail:mhyhit@163.com
  • Supported by:
    This research is supported by the National Key Basic Research Development Plan (2012CB026104),the National Natural Science Foundation of China (Nos. 51408163 and 51578200),the Natural Science Foundation of Heilongjiang Province (No. ZD201218),and the Research Foundation of Fuzhou University (510406).

摘要: In seasonally frozen regions, the frost-heave properties of soil play a significant role in its upper-structure performance and durability. To investigate the frost-heave behaviors of saturated, compacted silty clay soil widely used as subgrade material, a series of one-side freezing tests was carried out; and the freezing depth and frozen front effected by the compactness, temperature, overburden pressure, and water-supply condition were analyzed and discussed. The results show that the moving speed of the frozen front and growth rate of the frozen depth are positively correlated. The frost heave is maximum in the frost-heave stability condition. The frost ratio of saturated soil is proportional to the water supply and cooling temperature under a one-side freezing condition. The frost ratio of saturated soil is inversely proportional to the initial compactness of the soil specimen and the overburden pressure.

关键词: seasonally frozen regions, saturated silty clay soil, frost heave, freezing front, factor-sensitivity analysis

Abstract: In seasonally frozen regions, the frost-heave properties of soil play a significant role in its upper-structure performance and durability. To investigate the frost-heave behaviors of saturated, compacted silty clay soil widely used as subgrade material, a series of one-side freezing tests was carried out; and the freezing depth and frozen front effected by the compactness, temperature, overburden pressure, and water-supply condition were analyzed and discussed. The results show that the moving speed of the frozen front and growth rate of the frozen depth are positively correlated. The frost heave is maximum in the frost-heave stability condition. The frost ratio of saturated soil is proportional to the water supply and cooling temperature under a one-side freezing condition. The frost ratio of saturated soil is inversely proportional to the initial compactness of the soil specimen and the overburden pressure.

Key words: seasonally frozen regions, saturated silty clay soil, frost heave, freezing front, factor-sensitivity analysis

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