Experimental Studies on Model Single Pile and Pile Groups Subjected to Torque

Mehra, Sagar; Trivedi, Ashutosh

doi:10.1007/978-3-319-97115-5_24

Cited by 4 publications

(1 citation statement)

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“…(c) The stress-strain response of geomaterial is obtained from the hyperbolic model using Equation ( 11). (d) The lateral and torsional spring stiffnesses for geomaterial at a node related to parameters inside the yield surface are determined using Equation (18) and Equation ( 21), respectively. (e) The lateral and torsional spring stiffnesses for geomaterial at node-related yield flow parameters are determined using Equation (19) and Equation (22), respectively.…”

Section: Computational Algorithmmentioning

confidence: 99%

Cyclic Degradation Parameters of Flow-Controlled Geomaterial for Pile Group Subjected to Torsional Loads

Mehra,

Trivedi

2023

Applied Sciences

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The pile groups support large foundation structures which often experience cyclic torsional loads. Several theoretical and experimental investigations were carried out on pile groups under axial and lateral cyclic loads; however, the study of the response of cyclic torsional loads on pile foundation groups remains elusive. This paper proposes a numerical scheme to capture the behavior of the symmetrical pile group in the flow-controlled geomaterial under cyclic torsional loading. Based on the numerical scheme, three-dimensional finite element analysis was performed to capture the nonlinear response of the pile group using a computational program. The results from the numerical analysis have been compared with the experimental observations. The peak twist and peak shear stress logarithmically decrease and then become asymptotic after a number of cycles of loading for a pile group (2,2) in a flow-controlled geomaterial. A set of cyclic degradation parameters of flow-controlled geomaterial is identified for the pile group and presented as a function of dilation.

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Section: Computational Algorithmmentioning

confidence: 99%