Characteristic Test Study on Bearing Capacity of Suction Caisson Foundation Under Vertical Load

Dai, Guoliang; Zhu, Wenbo; Zhai, Qian; Gong, Weiming; Zhao, Xinlei

doi:10.1007/s13344-020-0025-5

Cited by 11 publications

(3 citation statements)

References 13 publications

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“…Chen Zongji was the first scholar in China who introduced rheology theory into the field of consolidation settlement. He proposed a consolidation theory based on the assumption that the soil skeleton was viscoelastic [ 6 ]. M. Kotilek summarized 12 kinds of NON-Darcy V-I relations and believed that the experimental method and errors in the experimental process were the main reasons for the deviation of the seepage law from Darcy's law.…”

Section: Introductionmentioning

confidence: 99%

Research on Nanoeffect of Penetration and Consolidation under Nonlinear Characteristics of Saturated Soft Clay

Zhao

Wang

Zhang

2022

International Journal of Analytical Chemistry

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In order to systematically study the nanopermeability properties of saturated soft clay under different consolidation pressures and different osmotic pressures, this paper analyzes various loading and unloading conditions that affect the permeability of soil based on the material description equation with displacement as the control variable of large deformation consolidation theory. By summarizing the empirical relationship between permeability coefficient and consolidation pressure and permeability coefficient and void ratio, the infiltration law and seepage failure characteristics of soft clay are revealed. For the soil studied in this paper, a = 0.65, b = 0.001, and q = 3.55 are acceptable. The effect of the initial permeability coefficient on large deformation consolidation is studied, and the necessity and plausibility of considering the nonlinearity of the compression and permeability coefficient when calculating the soft-land base large deformation consolidation is also studied.

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Section: Introductionmentioning

confidence: 99%

Research on Nanoeffect of Penetration and Consolidation under Nonlinear Characteristics of Saturated Soft Clay

Zhao

Wang

Zhang

2022

International Journal of Analytical Chemistry

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“…Often, in order to control the main target parameters and facilitate comparative experiments, model tests on composite foundations are necessary. Through model tests, we can not only understand the working mechanism of different types of composite foundations, including the working mechanism of long-and short-pile composite foundations [11,12], but also analyze the load transfer mechanism, deformation, and settlement laws of different types of composite foundations [13][14][15][16]. In some cases, the combined use of numerical simulations and experiments can provide a more comprehensive study of composite foundations.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Combined Bearing Characteristics of Pile–Soil Interaction in Composite Foundation

Sui,

Zhang,

et al. 2024

Applied Sciences

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Composite foundations have been widely used and promoted in practical engineering applications. However, research on the joint-bearing mechanism of piles and soil within composite foundations is still not comprehensive enough. This paper proposes a method for calculating the additional internal forces of piles and soil within composite foundations. Based on a three-dimensional finite element analysis, this study investigates the variation patterns of the stress, displacement, and additional internal forces of piles and soil in the depth direction under the action of upper loads when using friction piles and end-bearing piles. This research aims to reveal the bearing performance of piles and soil. The results showed that, under the same conditions and due to the presence of end-bearing effects, the internal forces experienced by the entire pile body of the end-bearing piles were more uniform, exhibiting significant advantages in resisting deformation and being able to withstand larger loads. Additionally, the diffusion mechanism of the vertical forces, stresses, and displacements of piles and soil is discussed. Due to the negative frictional resistance of soil and the influence of pile end-bearing effects, the distribution of internal forces and the displacements of piles and soil exhibited different characteristics. This study provides a scientific reference for the theoretical analysis and design of composite foundations.

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“…Zhou et al [4] studied the change rule of pile-soil stress ratio of tubular piles through on-site static load test. Dai et al [5] concluded that increasing the thickness of cushion layer can effectively improve the seismicity of composite foundation through load model test. Yu et al [6] studied the change rule of peripile soil disturbance and the bearing characteristics of tubular piles when they penetrate through the visual model test.…”

Section: Introductionmentioning

confidence: 99%

Enhancing static load test of pipe pile composite foundation with innovative elastic cushioning technology

Xu,

Yao,

et al. 2023

Vib. proced.

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Pipe piles have been widely used in composite foundation treatment by virtue of the advantages of assembly line production, easy control of pile quality, fast construction, high bearing capacity of single pile and green environmental protection. By introducing elastic cushion in the static load test method of pipe pile composite foundation, and using theoretical analysis and field test to study the change rule of settlement, pile-soil stress ratio and pile top stress of pipe pile composite foundation with different cushion stiffness. It is concluded that it is feasible to replace the sand cushion layer recommended by the current specification with elastic cushion layer. The study shows that the elastic cushion method of static load test of pipe pile composite foundation is closer to the bearing state of real working condition. The elastic cushion has better pile-soil stress adjustment effect, which is more responsive to the stress adjustment effect of actual engineering cushion, and the elastic cushion provides an improved method for the static load test method of composite foundation.

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Characteristic Test Study on Bearing Capacity of Suction Caisson Foundation Under Vertical Load

Cited by 11 publications

References 13 publications

Research on Nanoeffect of Penetration and Consolidation under Nonlinear Characteristics of Saturated Soft Clay

Research on Nanoeffect of Penetration and Consolidation under Nonlinear Characteristics of Saturated Soft Clay

Finite Element Analysis of Combined Bearing Characteristics of Pile–Soil Interaction in Composite Foundation

Enhancing static load test of pipe pile composite foundation with innovative elastic cushioning technology

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