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http://dx.doi.org/10.12814/jkgss.2017.16.2.067

Analysis of Bearing Capacity Improvement Effect of Inner Cone Penetration Equiped Open-Ended Steel Pipe Pile  

Lee, Junho (Dept of Civil and Environmental Engineering, Incheon National University)
Ji, Su-Bin (Dept of Civil and Environmental Engineering, Incheon National University)
Lee, Kicheol (Dept of Civil and Environmental Engineering, Incheon National University)
Kim, Dongwook (Dept of Civil and Environmental Engineering, Incheon National University)
Publication Information
Journal of the Korean Geosynthetics Society / v.16, no.2, 2017 , pp. 67-77 More about this Journal
Abstract
This study analyzes behavior of bearing capacity of open-ended pipe pile from laboratory experiment results. Unlike the conventional pipe piles, cone penetration is implemented into the inside of the pipe pile. During the cone penetration, cone driving energy helps densification of plugged soils and soils below the pile end. Sand pluviator was used to obtain homogeneous soil layers. Two kinds of piles with different pile outer surface roughness were prepared, and two different drop heights of pile driving were applied. Eight experimental cases varying pile outer surface roughness, pile driving energy for conventional and cone penetration implemented piles were conducted. From the experiments, ultimate load of the pile increased approximately by 70% for increased pile driving height, and it increased by 21% for rougher surface pile. When cone penetration is implemented, the ultimate load increased by 40% in average.
Keywords
Inner cone penetration; Plugging; Foundation; Open-ended pipe pile; Ultimate load;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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