Civil Engineering and Architecture Vol. 10(1), pp. 175 - 193
DOI: 10.13189/cea.2022.100116
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Single Pile FEM Modeling: Ultimate Capacity Determination of Bored Piles Embedded in Silty-Sands Using Modified Drucker-Prager Cap Model


Nathaniel E. Rivera *, Gilford B. Estores
School of Civil, Environmental and Geological Engineering, MapĂșa University, Manila, 1002, Philippines

ABSTRACT

Ultimate pile capacity determination is crucial before the structure construction. This essential pile resistance can be accurately predicted and studied using the finite element method. FEM is a numerical method that is anticipated to be indispensable in advances in pile analyses, aiming at pile effectiveness and material efficiency. Pile modeling is attainable using FEM for the stability investigation concerning the geotechnical findings. In addition, several constitutive mathematical models have been available for FEM applications to reasonably simulate soil behavior under pressure. This study conducts numerical modeling of eight bored piles of different diameters and lengths embedded in silty-sand soils. Using the FEM software ABAQUS, pile load-settlement curves are obtained to determine ultimate pile capacity, skin friction resistance, and pile base resistance. The modified Drucker Prager Cap model is used as a constitutive soil model for silty sand soils. In applying the MDPC model, the cap hardening behavior (hardening parameter) is obtained by having the site soils compression and swelling indices determined using the proposed regression equations in the literature. Piles were modeled successfully, and the results positively correlate with the results of the dynamic analysis test conducted in Davao del Norte, Philippines.

KEYWORDS
Bored Piles, Finite Element Method, Modified Drucker-Prager Cap Model, Ultimate Pile Capacity, Pile Dynamic Analysis, Civil Engineering, Pile Foundations

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Nathaniel E. Rivera , Gilford B. Estores , "Single Pile FEM Modeling: Ultimate Capacity Determination of Bored Piles Embedded in Silty-Sands Using Modified Drucker-Prager Cap Model," Civil Engineering and Architecture, Vol. 10, No. 1, pp. 175 - 193, 2022. DOI: 10.13189/cea.2022.100116.

(b). APA Format:
Nathaniel E. Rivera , Gilford B. Estores (2022). Single Pile FEM Modeling: Ultimate Capacity Determination of Bored Piles Embedded in Silty-Sands Using Modified Drucker-Prager Cap Model. Civil Engineering and Architecture, 10(1), 175 - 193. DOI: 10.13189/cea.2022.100116.