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http://dx.doi.org/10.7843/kgs.2020.36.11.35

Variations of Lateral Bearing Capacity of 2-row Micropile with Installation Conditions by Model Test  

Hwang, Tae-Hyun (Technology Research Institute, IWENC Co. Ltd.)
Kim, Mu-Yeun (IWENC Co. Ltd.)
Lee, Yeong-Saeng (School of Civil Engrg., Kyonggi Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.36, no.11, 2020 , pp. 35-49 More about this Journal
Abstract
The lateral bearing capacity of the micropile depends on the installed conditions such as number, installation angle and spacing of the pile. Existing research on micropile has been limited to the evaluation of vertical bearing characteristics and suggestion of effective installation methods, and there are few studies on failure mechanisms such as failure mode. And most of the studies on the lateral bearing capacity of micropile are also on the 1-row micropile. Therefore, in this study, a model test was performed to evaluate the behavior and lateral bearing characteristics of a 2-row micropile when the installed conditions such as the installation length, angle, and spacing of the pile were different. As a result of the model test, when the installation angle is θ > 0° (Not cross installation), the lateral bearing capacity of 2-row micropile depends on the spacing of the piles, and the installation angle θ = +30° was the most effective for increasing the bearing capacity. In addition, when the installation angle is θ < 0° (Overlap installation), it depends on the spacing and angle of the pile, and the condition of installation angle θ = -15° was found to be the most effective for increasing the bearing capacity.
Keywords
Installed conditions of micropile; Interaction effect of pile; Micropile; Model test;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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