Modelling and Assessment of a Single Pile Subjected to Lateral Load

Abbas, Jasim M.; Chik, Zamri; Taha, Mohd Raihan

doi:10.2478/sgem-2018-0009

Cited by 23 publications

(4 citation statements)

References 26 publications

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“…The Mohr-Coulomb model can describe the elastoplastic characteristics of soil to some extent, and is widely applied in lateral load pile models [42]. The simulation of the soil in this paper adopts the elastoplastic Mohr-Coulomb model, which can effectively assess the effect of landslide surges.…”

Section: Soil Modelmentioning

confidence: 99%

Numerical Investigation into the Stability of Offshore Wind Power Piles Subjected to Lateral Loads in Extreme Environments

Sun,

Shan,

Wang

et al. 2024

JMSE

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Monopile foundations are extensively utilized in the rapidly expanding offshore wind power industry, and the stability of these foundations has become a crucial factor for ensuring the safety of offshore wind power projects. Such foundations are subjected to a myriad of complex environmental loads during their operational lifespan. Whilst current research predominantly concentrates on the effects of wind, wave, and current loads on monopile stability in extreme environments, it is imperative to consider the potential influence of unexpected submarine landslide loads. In this study, we provide a comprehensive overview of wind, wave, current, and submarine landslide loads on monopile foundations in extreme environments. Subsequently, we establish a finite element model for analyzing the stability of monopiles under complex lateral loads, and validate the accuracy of the model by comparing it with the previous numerical findings. A case study is performed with reference to the Xiangshui Wind Farm project to analyze the effects of varying submarine landslide densities, velocities, impact heights, and seabed sediment strengths on pile head horizontal displacement, pile rotation at the mudline, and maximum bending moment. The findings indicate that the increase in submarine landslide density, velocity, and impact height leads to an increase in horizontal displacement at the pile head, pile rotation at the mudline, and maximum bending moments, and a horizontal failure mode is observed in seabed sediments. Furthermore, under the same load conditions, a decrease in seabed sediment strength and internal friction angle triggers instability in monopiles, with a noteworthy transition from horizontal failure to deep-seated seabed sediment failure. Finally, we propose a criterion for monopile instability under diverse loading conditions.

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Section: Soil Modelmentioning

confidence: 99%

Numerical Investigation into the Stability of Offshore Wind Power Piles Subjected to Lateral Loads in Extreme Environments

Sun,

Shan,

Wang

et al. 2024

JMSE

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“…The case study of the soil-pile system of four-multi story building were formulated with Plaxis. The boundary condition for the finite element method for piles into soil media (40x40x30) m according to [16], the dimensions of the soil body surface of a cube shape (10D) from the center of the pile diameter, and (5D) below the pile base as illustrated in Figure 1. This study's model consists of two parts: material soil simulate with elastic perfectly plastic with three square layers (Mohr-Coulomb model).…”

Section: Formulation Problem Of Study In Plaxis-3d 2020 Programmentioning

confidence: 99%

Behavior of Pile Group Constructed on Clayey Soil under El-Centro Seismic

Ali¹,

Abbas²,

Safa³

et al. 2023

DJES

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Over the past decades, pile foundations used to support buildings through a transfer of superstructure loads into more stable soil strata than surface soil layers. Buildings are exposed to seismic force, pile undergoes more stress through the significant vibration of the surrounding soil in addition to the static stresses of buildings. The investigation of the behavior of pile foundations under the influence of earthquakes is still limited or not well described. Further, this paper presents a theoretical study to evaluate the vertical settlement and horizontal displacement of piles embedded in clay and silty soil of Baqubah soil under the effect of the acceleration time history of the 1940 El-Centro earthquake. The study was carried out by using the commercial finite element software PLAXIS 3D. A three-dimensional analysis of the soil-pile foundation for four multi-story buildings is performed with different diameters (0.5, 0.7, and 1) m for the corner, exterior, and interior pile, respectively. The linear elastic model for pile foundation and the Mohr-Coulomb model for soil layers were used in this numerical analysis. The research showed that vertical settlement and horizontal displacement increase as the duration of the earthquake increases, and horizontal displacement with values smaller than vertical displacement. Also, the results showed the vertical settlement is similar for different diameters, in contrast to the horizontal displacement, which was of different values with a range between (3% to 22%) when the diameter increased from 0.5m, 0.7m, and 1m. Also, it can be observed that values increased with the direction of the earthquake from the right to the left side of the pile-soil system with a range of (12% to 32%).

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“…Abbas et al [7] In their study, they modeled a 3dimensional single pile with the finite element method and examined the effect of the geometric shape of the pile and the L/D ratio on the lateral load carrying capacity of the pile. Accordingly, they concluded that the load carrying capacity of square piles is better than round piles, and the pile head rotation values are lower at a certain L/D ratio.…”

Section: Introducti̇onmentioning

confidence: 99%

Analyzes of Rubber Bedded, Lateral Loaded Single Pile by Plaxis 2d

BASAR

2023

ETJ

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In this study, lateral loaded single pile either with rubber bedded were analyzed in cohesionless soil. By rubber bedding how differated the moment values and pile length, head diameter ratio. For this purpose 3 different pile diameter such as 0,40m., 0,60m.,0,80m. 2 different volume rubber bedding and every combination was analyzed with two L/D values. In total 18 plaxis 2D analyzes exist in the study. Lateral loaded single pile interacts with soil either different with rubber bedded one and soil structure interface has been important parameter. Rubber bedding reduces moment values throught the pile length.This reducing factor allows the designer more economical and secured values. On the other hand pile’s different L/D ratios gives varying values on moment either in rubber bedded either in dense sand. By foreseeing this design parameter is important for more economical and efficient designing.

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Modelling and Assessment of a Single Pile Subjected to Lateral Load

Cited by 23 publications

References 26 publications

Numerical Investigation into the Stability of Offshore Wind Power Piles Subjected to Lateral Loads in Extreme Environments

Numerical Investigation into the Stability of Offshore Wind Power Piles Subjected to Lateral Loads in Extreme Environments

Behavior of Pile Group Constructed on Clayey Soil under El-Centro Seismic

Analyzes of Rubber Bedded, Lateral Loaded Single Pile by Plaxis 2d

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