Assessing the influence of liquefied soil resistance on the critical axial load of rock-socketed piles: shake-table test and numerical analyses

Zhang, Xiaoyu; Su, Lei; Zhang, Peng; Tang, Liang; Ling, Xianzhang

doi:10.1007/s11440-021-01357-9

Cited by 6 publications

(1 citation statement)

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“…For the fulfillment of similarity between the prototype and laboratory model, the scaling factors 33 , 34 of the small-scale model to the prototype is defined, such as the geometric scaling factor as C l = 1/63, the bulk density scaling factor as C γ = 1, the elastic modulus scaling factor as C E = 1/63, etc. All relevant scaling factors of the model test are defined in Table 1 .…”

Section: Design Of Laboratory Model Testsmentioning

confidence: 99%

Experimental study of the effects of the void located at the pile tip on the load capacity of rock-socketed piles

Zhao,

Melentijevic,

Shen

et al. 2024

Sci Rep

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To address the design challenge of the rock-socketed piles posed by the void located below the pile tip, the physical laboratory model tests were designed and performed to simulate rock socketed piles using similar materials. The study investigates the behavior of the single pile under axial loading with the void located at varying distances from the pile tip. Through multi-level load tests, the variations of unit pile side friction, pile tip resistance, pile axial force and pile settlement are obtained for different positions of the void from the pile tip, as well as after grouting. Its comparison to the rock-socketed pile without void is performed as a reference to quantify the reduction in its bearing capacity. The results are presented in the form of graphs for different void positions and its grouting shows the influence on pile bearing capacity and emphasizes the importance of its detailed cautious investigation and introduction in the analysis. The 2D finite element modeling of the model pile-the void based on ABAQUS is performed to further investigate the influence of the void below pile tip on the bearing capacity of model pile, applying the Mohr Coulomb model as the constitutive model of rock mass behavior. The critical distance of the void below the pile tip is determined.

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Section: Design Of Laboratory Model Testsmentioning

confidence: 99%