Study on Dynamic Response of Inclined Pile Group Foundation under Earthquake Action

Huang, Weihong; Liu, Jiankun; Wang, Heng; Ayasrah, Mo’men; Qiu, Hongsheng; Wang, Zhuofan

doi:10.3390/buildings13102416

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…The effects of the pile-soil relative stiffness, [6][7][8][9] pile diameter D, 15,16 soil relative density, [18][19][20] loading rate, 17 loading frequency, 5 loading amplitude, 21 loading direction (e.g. unidirectional or bidirectional), [22][23][24] the number of cycles, 6 existing vertical load, 25 and inclination angle 3,4 on the lateral behavior of pile were mainly focused. The pile-soil relative stiffness was considered to govern the mechanisms of pile-soil interaction, and the criteria was proposed to distinguish between flexible and rigid piles.…”

Section: Introductionmentioning

confidence: 99%

Bearing and deformation characteristics of monopile foundation under monotonic and cyclic horizontal loads

Ma,

Xu,

Fan

et al. 2024

Science Progress

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The bearing and deformation characteristics of monopile foundation under the monotonic and cyclic loads are key factors to consider in the design of the transmission tower structure or offshore wind energy converters. The model tests and numerical simulations of monopile foundation under monotonic and cyclic horizontal loads were performed in sand to explore the bearing characteristics and the deformation characteristics of pile. The potentially affected factors including loading height, relative density of soil, displacement amplitude were analyzed. The results show that with the loading height varies from 1 D to 4 D, the horizontal static bearing capacity of the pile under different the soil relative density decreased by 1.63–1.9 times, and the peak bending moment increased by 22.9%–36.8%. Under the cyclic loads, the peak load on the pile top increased by 31.7%–56.1% for each 1 mm increase in displacement amplitude. The stiffness of soil around pile varies as the number of cycles increases with the development trend of decreases first and then increases gradually. As the horizontal load and cycle number increase, the range of the displacement of soil extends towards the bottom of pile, until it covers the entire lower part of the model.

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Section: Introductionmentioning

confidence: 99%

Bearing and deformation characteristics of monopile foundation under monotonic and cyclic horizontal loads

Ma,

Xu,

Fan

et al. 2024

Science Progress

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show abstract

“…Huang et al [20] investigated the dynamic behavior and parameter effects of inclined straight group piles under the influence of an earthquake using a finite element program. In the analysis, it was seen that the inclination angle of the inclined piles under the influence of the earthquake significantly affected the seismic behavior of the pile group.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Pile–Soil Interaction Problem under Dynamic Loads

Bildik,

Tanrıöver

2023

Applied Sciences

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One of the most important problems of geotechnical engineering is the design of pile foundations. Piles are generally designed for vertical and horizontal static loads. However, it is important to design piles against dynamic loads in regions with high seismicity. This study verified a centrifuge experiment obtained from the literature with a finite element program. With the kinematic interaction analyses performed for this purpose, the effect of parameters such as layered soil, groundwater, pile stiffness, and earthquake acceleration were investigated numerically. According to the results obtained, it was understood that the earthquake magnitude is the most important parameter in kinematic interaction analyses. In addition, in layered soil conditions, the fact that 75% of the pile length is in the weak soil creates the most unfavorable situation. It was observed that pile stiffness and groundwater level also have certain effects on the kinematic interaction.

show abstract

Numerical Investigation of Pile-Soil Interaction Problem under Dynamic Loads

Bildik,

Tanrıöver

2023

Preprint

View full text Add to dashboard Cite

One of the most important problems of geotechnical engineering is the design of pile foundations. Piles are generally designed for vertical and horizontal static loads. However, it is important to design piles against dynamic loads in regions with high seismicity. This study verified a centrifuge experiment obtained from the literature with a finite element program. With the kinematic interaction analyses made for this purpose, the effect of parameters such as layered soil, groundwater, pile stiffness, and earthquake acceleration were investigated numerically. According to the results obtained, it was understood that the earthquake magnitude is the most important parameter in kinematic interaction analyses. In addition, in layered soil conditions, the fact that 75% of the pile length is in the weak soil creates the most unfavorable situation. It has been observed that pile stiffness and groundwater level also have certain effects on the kinematic interaction.

show abstract

Study on Dynamic Response of Inclined Pile Group Foundation under Earthquake Action

Cited by 4 publications

References 13 publications

Bearing and deformation characteristics of monopile foundation under monotonic and cyclic horizontal loads

Bearing and deformation characteristics of monopile foundation under monotonic and cyclic horizontal loads

Numerical Investigation of the Pile–Soil Interaction Problem under Dynamic Loads

Numerical Investigation of Pile-Soil Interaction Problem under Dynamic Loads

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