Analysis of bearing capacity of pile foundation in discontinued permafrost regions |
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Authors: | JiLiang Wang ChenXi Zhang and XinLei Na |
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Institution: | Heilongjiang Province Academy of Cold Area Building Research, Harbin, Heilongjiang 150060, China;Heilongjiang Province Academy of Cold Area Building Research, Harbin, Heilongjiang 150060, China;Golder Assocuates Inc., Anchorage, Alaska 99507, United States of America |
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Abstract: | Piles are the main building foundation in permafrost regions. Thawing the permafrost foundation would have a negative effect on a pile, and may cause damage to the building. This paper focuses on the effects of negative friction force due to the melt of permafrost, and presents four calculated methods for bearing capacity of a pile. An engineering station was taken as an example, where the lengths of a pile were compared based on four methods. Finally, quick field load tests were carried out, and some meaningful conclusions are presented. Thus, these analytical results can be used to design a pile for permafrost regions. |
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Keywords: | discontinued permafrost pile bearing capacity negative friction force |
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