Experimental investigation of vertical and batter pile groups subjected to dynamic loads

Bharathi, M.; Dubey, R. N.; Shukla, Sanjay Kumar

doi:10.1016/j.soildyn.2018.10.012

Cited by 27 publications

(15 citation statements)

References 41 publications

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“…Experimental studies have also revealed similar benefits. [9][10][11] The experimental study performed by Escoffier [12] showed that the response of a twoby-one batter pile group was highly influenced by the frequency content of loading. It has also been suggested that the inadequate performance of inclined piles has been due to poor design rather than the fundamental behaviour of the pile itself.…”

Section: Introductionmentioning

confidence: 99%

Simplified computational methods for estimating dynamic impedance of batter pile groups in homogeneous soil

Cemalovic

Husebø

Kaynia

2021

Earthq Engng Struct Dyn

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A simplification of existing analytical solutions together with an extended hybrid model is proposed for estimating the horizontal impedance of batter pile groups subjected to harmonic loading. The solutions are given through compact interaction factors and analogue pile‐soil‐pile interaction elements. Benefits and pitfalls of the simplified models are elucidated through a comprehensive comparison with a refined finite element model. The effect of varying center‐to‐center pile distance with respect to depth is discussed. It is shown that the analytical model is able to represent pile‐soil‐pile interaction rather well within the specified framework.

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Section: Introductionmentioning

confidence: 99%

Simplified computational methods for estimating dynamic impedance of batter pile groups in homogeneous soil

Cemalovic

Husebø

Kaynia

2021

Earthq Engng Struct Dyn

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“…Subramanian et al [8] found that the lateral displacement and bending strain at resonance region decrease with increasing batter angle for a two-by-one pile group subjected to lateral loads. Bharathi et al [9] found that peak displacements of batter pile groups were significantly reduced compared to vertical pile groups.…”

Section: Introductionmentioning

confidence: 98%

“…Bharathi et al. [ 9 ] found that peak displacements of batter pile groups were significantly reduced compared to vertical pile groups.…”

Section: Introductionmentioning

confidence: 99%

Kinematic response of vertical and batter pile groups in non‐linear soft soil

Cemalovic

Husebø

Kaynia

2022

Earthq Engng Struct Dyn

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This paper presents a comprehensive numerical study on kinematic response of vertical and batter pile groups in soft soil, where soil non-linearity, batter angle, pile spacing and excitation frequency are related to pile-cap displacements, rotations, maximum pile moments, shear forces and axial forces. The finite element model is constructed in OpenSees MP, and parallel computing is utilized for a better (faster) performance. Results reveal that soil non-linearity has a profound impact on the kinematic interaction. Increasing batter angle decreases horizontal displacements but increases rotations. Batter pile groups yield lower spectral accelerations compared to vertical pile groups. For high 𝑃𝐺𝐴, the spectral accelerations of the pile-cap may be lower compared to the spectral acceleration of the seismic input motion. Estimation using non-linear interaction factors conservatively estimates pile-cap displacements and rotations, while roughly captures the effects with respect to batter angle and frequency content within the specified framework.

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“…Increasing the pile spacing and pile diameter will increase the construction cost of the cap, and improvement of the horizontal bearing capacity of the foundation is limited by the pile diameter and pile spacing. To explore a more economical and e ective method for improving the horizontal bearing capacity of pile foundations, scholars worldwide have proposed setting inclined piles in pile group foundations to improve their horizontal bearing capacity [5,6].…”

Section: Introductionmentioning

confidence: 99%

Study on the Bearing Capacity of High‐Cap Inclined Pile Foundations

Shao

Liu

Wang

et al. 2022

Advances in Civil Engineering

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To analyze the bearing capacity of high-cap inclined pile foundations based on foundation design in practical engineering, finite element models of single cap foundations and multi-cap foundations are established. The influence of the inclination direction and angle of the inclined pile on the lateral displacement of the foundation and internal force of the pile body is investigated. The influence of uneven settlement on inclined pile foundations is examined by weakening the soil strength. This paper suggests that the lateral bearing capacity of a negatively inclined pile is better than that of a positively inclined pile. When the inclination angle of a negatively inclined pile changes within a certain range, it can significantly affect the lateral displacement of the pile body. Under uneven settlement, the change in the internal force of the inclined pile is larger than that of the vertical pile, the horizontal displacement difference of each bearing platform is small, and the vertical displacement is quite different.

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Experimental investigation of vertical and batter pile groups subjected to dynamic loads

Cited by 27 publications

References 41 publications

Simplified computational methods for estimating dynamic impedance of batter pile groups in homogeneous soil

Simplified computational methods for estimating dynamic impedance of batter pile groups in homogeneous soil

Kinematic response of vertical and batter pile groups in non‐linear soft soil

Study on the Bearing Capacity of High‐Cap Inclined Pile Foundations

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