Micropile has been increasingly used not only as a reinforcing material for foundations but also as the foundations themselves. Due to the high slenderness ratio (length/diameter (L/D)) of the micropile, the lateral resistance has frequently been neglected or underestimated. However, field measurements in this study revealed that the lateral resistance of a micropile is considerable. In this study, the lateral behavior and lateral bearing capacity of a micropile were investigated by performing field tests, physical model tests, and numerical analysis. It was found that the lateral resistance of the micropile is highly dependent on the slenderness ratio and the installation condition such as inclination. Particularly, the battered micropile showed higher resistance than the vertical pile. The increase in the lateral support of the micropile was obtained when the micropile was inclined 45° in the direction of the load. Based on the numerical parametric study, a simple evaluation method to determine the lateral bearing capacity of a micropile is proposed.
Experimental and Numerical Study on Lateral Resistance of Micropile in Sand
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 27 , 9 ; 3740-3752
01.09.2023
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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