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Deflection behavior of small diameter steel piles model in FEM analysis for landslide countermeasure

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Authors
Mujah, Donovan
Rahman, Ekhlasur
Hazarika, Hemanta
Watanabe, Naoto
Ahmad, Fauziah
Date
2013
Type
Conference Paper

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Mujah, Donovan and Rahman, Muhammad Ekhlasur and Hazarika, Hemanta and Watanabe, Naoto and Ahmad, Fauziah. 2013. Deflection behavior of small diameter steel piles model in FEM analysis for landslide countermeasure, in Rahman, M.E. and Enbaia, A.E. and Palanichamy, C. and Chen, L.C. and Hasimah, N. and Zain, M. (ed), 8th CUTSE International Conference, Dec 3-4 2013, pp. 179-186. Miri, Sarawak: The Institution of Engineers Malaysia and Curtin University Sarawak.
Source Title
Proceedings of the 8th CUTSE International Conference
Source Conference
8th CUTSE International Conference
School
Sarawak Malaysia
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Abstract

This paper aims to elucidate the prevention mechanism of small diameter steel piles (SDSP) and how multirow arrangement of the said piles affects the reinforced slope failure in landslide countermeasure. In this study, finite element method (FEM) analysis employing Mohr-Coulomb’s elastic-perfectly plastic soil model was carried out to simulate the real SDSP piles in which, the effect of the piles’ cross sections (10 mm x 10 mm square and 3 mm in diameter) was considered. The effect of introducing multiple rows arrangement of SDSP in terms of the single, double and triple rows arrangements of those piles were also studied. Based on the results, it was observed that the shearing resistance in different pile cross sections is found to be significantly influenced by the variation of SDSP arrangement. However irrespective of the piles arrangements, failure mode of the ground during landslide is mainly governed by the bending stiffness (EI) of the reinforcing rods.