3D Numerical Modeling of a Single Pipe Pile Under Axial Compression Embedded in Organic Soil
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ORIGINAL PAPER
3D Numerical Modeling of a Single Pipe Pile Under Axial Compression Embedded in Organic Soil Majid Hamed . Buse Emirler . Hanifi Canakci . Abdulazim Yildiz
Received: 11 January 2020 / Accepted: 29 March 2020 Springer Nature Switzerland AG 2020
Abstract The objective of this paper is to numerically study the behavior pipe pile under axial compression embedded in organic soil has been numerically predicted. The pipe pile used in the study has been produced by steel and it has outer and inner diameters of 20 mm and 15 mm, respectively. The pile embedded in organic soil, which has the pile length ratios of 10, 20 and 30 (L/D), has been exposed to the axial load for different diameter ratios (d/D = 0, 0.25, 0.50 and 0.75). Numerical analyses have been performed by using Plaxis 3D computer program which is based on finite element method. The capability of the numerical analysis in the prediction of the load capacity of pipe pile has been studied. It has been understood that the results obtained from numerical analysis and experiment are in a good agreement, and then it has been observed in the parametric study that
M. Hamed (&) Department of Civil Engineering, Kirkuk University, Kirkuk, Iraq e-mail: [email protected] B. Emirler A. Yildiz Department of Civil Engineering, Cukurova University, Adana, Turkey e-mail: [email protected] H. Canakci Department of Civil Engineering, Hasan Kalyoncu University, Gaziantep, Turkey e-mail: [email protected]
the load capacity of single pipe pile increases with the increase of the pile length and the wall thickness. Keywords Foundation Numerical analyses Pile Soil modeling Soil–structure interaction
1 Introduction The physical properties of organic soils are very effected by the existence of even a small quantity of organic substances. The organic soils grain size consists of silt or clay particles; so that, they are frequently defined as organic clayey soil or organic silty soil (Khadka 2011). An organic soil is one which has an adequate content of organic matters that affects shear strength and compressibility of the soil. Organic soil containing fibrous particles has more frictional resistance than soft silt and clay deposits (Mesri and Ajlouni 2007). In order to mobilize the maximum frictional resistance in these types of soils, high deformation rates are required when compared to soft clay soils (Hardy and Thomson 1956; Tressider 1958; MacFarlane 1969). Organic soils have also very high secondary consolidation value, higher water content and liquid limit compared to inorganic silt and clay. When the organic soil is in the limits of proposed project area, it is frequently viewed as problematic field for making of dikes, roads, storage facilities, housing developments and industrial parks. It requires
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continued maintenance processes or high initial costs (Colley 1950; Thomson 1957; Hanrahan and Rogers 1981). In order to maintain long term performance of the structure
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