Sciences in Cold and Arid Regions ›› 2018, Vol. 10 ›› Issue (1): 1-11.doi: 10.3724/SP.J.1226.2018.00001

• REVIEW •    

Research on pile performance and state-of-the-art practice in cold regions

JianKun Liu1,3, TengFei Wang1,2, Zhi Wen4   

  1. 1. Research Institute of Subgrade and Foundation Engineering, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
    2. Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison WI 53706, United States;
    3. Key Laboratory of Highway Construction and Maintenance Technology in Permafrost Region, Qinghai Research Institute of Transportation, Xining, Qinghai 810000, China;
    4. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy Sciences, Lanzhou, Gansu 730000, China
  • Received:2017-12-14 Published:2018-11-23
  • Contact: JianKun Liu, jkliu@bjtu.edu.cn E-mail:jkliu@bjtu.edu.cn

Abstract: A pile foundation is commonly adopted in geotechnical engineering to support structures, and its application has been extended to cold-regions engineering. In past decades, a host of scholars investigated pile behaviors and proposed design guidelines for seasonally frozen ground or permafrost. This paper reviews the research with respect to pile performance and engineering practice in cold regions, organized as follows: (1) creep tests and bearing capacity, (2) frost-jacking hazards, (3) laterally loaded piles, (4) dynamic responses, (5) refreezing due to concrete-hydration heat, and (6) improved countermeasures and design methods. We first summarize previous research and recent progress; then, predict the development trend of pile foundations in cold regions and recommend further research.

Key words: pile foundation, bearing capacity, creep test, pile design, frost jacking, permafrost

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