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Research on pile performance and state-of-the-art practice in cold regions
Received:December 14, 2017    Click here to download the full text
Citation of this paper:JianKun Liu,TengFei Wang,Zhi Wen,2018.Research on pile performance and state-of-the-art practice in cold regions.Sciences in Cold and Arid Regions,10(1):1~11.
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Author NameAffiliationE-mail
JianKun Liu Research Institute of Subgrade and Foundation Engineering, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;Key Laboratory of Highway Construction and Maintenance Technology in Permafrost Region, Qinghai Research Institute of Transportation, Xining, Qinghai 810000, China jkliu@bjtu.edu.cn 
TengFei Wang Research Institute of Subgrade and Foundation Engineering, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison WI 53706, United States  
Zhi Wen State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy Sciences, Lanzhou, Gansu 730000, China  
 
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.
keywords:pile foundation  bearing capacity  creep test  pile design  frost jacking  permafrost
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