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http://dx.doi.org/10.7843/kgs.2018.34.6.5

Experimental Behavior Characteristics of 2×2 Group Pile under Lateral Loads  

Kwon, Oh-Kyun (Dept. of Civil Engrg., Faculty of Architecture & Civil Engrg., Keimyung Univ.)
Park, Jong-Un (Dept. of Civil Engrg. & Landscape Architecture, Daegu Technical Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.6, 2018 , pp. 5-16 More about this Journal
Abstract
In this study, the large scale laboratory model tests were executed to investigate the lateral resistance characteristics of $2{\times}2$ group pile under lateral loads according to the array method and installation angle of piles. The effect on the behavior of $2{\times}2$ group pile was also investigated through model tests varying the pile diameter and length, distance to pile top from the ground surface, center-to-center (CTC) length and surcharge etc. From these test results, it was found that the lateral resistance of $2{\times}2$ group pile of which piles were constructed slantly in both directions was greater than that of group pile of which piles were constructed vertically. And as a result of parameter tests on the lateral resistance of $2{\times}2$ group pile, it was found that the most important parameter was the pile length. As the embedment depth ratio (L/D) increased to 36.5 from 26.5, the lateral resistance increased 3~4 times or more. But the center-to-center (CTC) length, distance to pile top from the ground surface and surcharge did not affect much on the lateral resistance of group pile.
Keywords
Lateral resistance; $2{\times}2$ group pile; Laboratory model test; Embedment depth ratio;
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