Nonlinear consolidation analysis of soft soil with vertical drains considering well resistance and smear effect under cyclic loadings

Kim, Pyol; Kim, Tong-Chol; Kim, Yong-Gun; Myong, Hak-Bom; Jon, Kwang-Su; Jon, Song-Hun

doi:10.1016/j.geotexmem.2021.05.012

Cited by 23 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Terzaghi 2 and Barron 3 introduced one‐dimensional and axisymmetric consolidation theories in saturated soils, respectively. Barron 3 also propose the equal strain assumption and verified the validity and the similar of predictions with the free strain assumption, which was widely used to simplify the solution process 4–10 …”

Section: Introductionmentioning

confidence: 85%

“…Barron 3 also propose the equal strain assumption and verified the validity and the similar of predictions with the free strain assumption, which was widely used to simplify the solution process. [4][5][6][7][8][9][10] 25 Time-dependent √ × Analytical a "√"represents that corresponding factors are considered in the analysis process; "×"represents that corresponding factors are not considered in the analysis process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

General analytical solutions for the equal‐strain consolidation of prefabricated vertical drain foundation in unsaturated soils under time‐dependent loading

Qin

et al. 2022

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

External disturbances were scarcely considered in the consolidation of unsaturated vertical drain foundation, in which the ideally permeable or impermeable boundary conditions were always adopted to investigated the consolidation patterns. In view of this, by taking the flows along the vertical and radial orientations simultaneously, this study proposes the general analytical solutions for the axisymmetric consolidation of prefabricated vertical drain foundations in unsaturated soils which consider drain resistance, smear effect, and time‐dependent loading under the equal‐strain assumption. Through theories related to consolidation in unsaturated soils, the governing equations of air and water phases in the matrix form are proposed. Subsequently, Fourier series expansion, matrix analysis and decoupling method are used to acquire the analytical solutions. The separate expressions of smear coefficient and drain resistance factors, which can represent the potential influence of the external boundaries more obviously, are included in the solutions. Degradation validity method is used to verify the credibility of the current solutions, and the vertical flow is found to promote the consolidation process under external conditions. Finally, the solutions obtained in this paper can provide guidance for more complicated consolidation problems in unsaturated soils.

show abstract

Section: Introductionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

General analytical solutions for the equal‐strain consolidation of prefabricated vertical drain foundation in unsaturated soils under time‐dependent loading

Qin

et al. 2022

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

show abstract

“…When temperature effects are not considered, βm can be degraded to the solution of Wang [5] when the vertical seepage in the undisturbed zone is neglected. At this point, βm is denoted as ISSN 2663-1563 Vol.…”

Section: Expression For Degree Of Consolidation Under Single-grade Lo...mentioning

confidence: 99%

“…Therefore, it is necessary to consider variable loads in the study of composite ground with granular columns. [4][5][6][7][8][9] analyzed the consolidation theory of composite foundation under the influence of variable load.…”

Section: Introductionmentioning

confidence: 99%

Consolidation analysis of composite ground with granular columns considering temperature effect and variable load

2023

AJAGE

View full text Add to dashboard Cite

Aiming at the consolidation problem of composite ground with granular columns composite foundation, the influences of temperature effect and variable load of composite foundation are considered, the consolidation calculation model of composite foundation is established, and the analytical solution of composite foundation under temperature effect, variable load and consolidation deformation. The correctness of the solution is verified by comparing the degradation calculation results with the existing analytical solution calculation results. The curve of consolidation degree of composite ground with granular columns under the influence of different factors is drawn by example analysis. The results show that with the increase of temperature, the consolidation rate of the composite foundation is accelerated, but the influence of temperature on the foundation soil becomes smaller and smaller. As the temperature increases, the greater the maximum reached at the end of the constant velocity loading stage, the faster the rate of excess pore pressure dissipation. The longer the loading time, the greater the influence of temperature on the excess pore pressure.

show abstract

“…Nguyen and Kim [6] studied the large deformation consolidation of sand well foundations by considering the variation of sand well permeability coefficient with time with exponential function law. Kim et al [7] investigated consolidation behavior of soft soil with vertical drains considering well resistance and smear effect under cyclic loadings. Using the variables separation method, a series of analytical solutions were derived to calculate the excess pore water pressure and the average degree of consolidation of the soil subjected to various cyclic loadings, including trapezoidal cyclic loading, rectangular cyclic loading, triangular cyclic loading, and haversine cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study on the Consolidation of Multiple Composite Foundations with Vertical Drains‐Impervious Piles considering Temperature Effect and Nonuniform Distribution of Initial Pore Pressure

Zhang

Zhao

Wang

et al. 2022

Advances in Civil Engineering

View full text Add to dashboard Cite

For the problem of consolidation of multiple composite foundations of vertical drain-impervious pile, considering the influence of temperature and nonuniform distribution of initial pore pressure, the consolidation control equations based on the assumption of equal strain are established, and the analytical solution method is adopted to give the analytical solution of consolidation of multiple composite foundations of the vertical drain-impervious pile with trapezoidal, rectangular, positive triangular, and inverted triangular distribution of initial pore pressure. The correctness and reasonableness of the solutions are verified by comparing the degenerate solutions of this paper with the existing solutions. The consolidation properties of the multifaceted composite foundation are analyzed according to the solution of this paper. The results show that the initial pore pressure is faster to consolidate in a trapezoidal distribution than in a rectangular distribution, fastest to consolidate in an inverted triangular distribution and slowest to consolidate in a positive triangular distribution. The rate of consolidation of a multiple composite foundation can be significantly accelerated by increasing the temperature, the replacement rate of impervious piles, and the compression modulus. The rate of consolidation of a multiple composite foundation can be significantly increased compared to a single pile type foundation; the size of the permeability coefficient of the vertical drain almost represents the size of the drainage capacity of the composite foundation. The rate of consolidation of a multiple composite foundation is faster as the permeability coefficient of the vertical drain increases.

show abstract

Nonlinear consolidation analysis of soft soil with vertical drains considering well resistance and smear effect under cyclic loadings

Cited by 23 publications

References 34 publications

General analytical solutions for the equal‐strain consolidation of prefabricated vertical drain foundation in unsaturated soils under time‐dependent loading

General analytical solutions for the equal‐strain consolidation of prefabricated vertical drain foundation in unsaturated soils under time‐dependent loading

Consolidation analysis of composite ground with granular columns considering temperature effect and variable load

Theoretical Study on the Consolidation of Multiple Composite Foundations with Vertical Drains‐Impervious Piles considering Temperature Effect and Nonuniform Distribution of Initial Pore Pressure

Contact Info

Product

Resources

About