Pile Foundation Design Through the Increased Bearing Capacity of Extended End Pile

Pretensioned spun high strength concrete (PHC) piles are a commonly used type of pile, while approximately 60% of the pile′s strength is only used in the design bearing capacity. Because of the limited support capacities of PHC piles, applying PHC piles to high-rise buildings or soft ground is ineff...

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Bibliographic Details
Published in:Journal of Asian architecture and building engineering 2017-05, Vol.16 (2), p.395-402
Main Authors: Kim, Seungho, Whang, Seoung-Wook, Kim, Sangyong
Format: Article
Language:English
Subjects:
Bearing capacity
Building construction
end bearing capacity
extended end pile
High rise buildings
High strength
High strength concretes
pile foundation design
pile load test
skin friction force
Soft ground
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Summary:Pretensioned spun high strength concrete (PHC) piles are a commonly used type of pile, while approximately 60% of the pile′s strength is only used in the design bearing capacity. Because of the limited support capacities of PHC piles, applying PHC piles to high-rise buildings or soft ground is inefficient. Extended end (EXT) piles are a new type of pile that can reduce the waste of pile strength and increase the ground bearing capacity. This study investigated the behavior of EXT piles through a field test and it was confirmed that the bearing capacity of the EXT pile is better than the PHC pile. The increased bearing capacity of EXT piles also influenced work duration and project cost.
ISSN:1346-7581
1347-2852
DOI:10.3130/jaabe.16.395