Irreversible consolidation problem of a saturated porothermoelastic spherical body with a spherical cavity

Bai, Bing; Li, Tao

doi:10.1016/j.apm.2012.05.003

Cited by 40 publications

(32 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, different dry densities are used to model the blocks and joints, resulting in different calculation parameters. Two assumptions are made in this study: heat transfer induced by air flow is neglected, and the temperature of the soil particles and water are considered to reach equilibrium, such that there is only one temperature variable T. e heat transfer equation for unsaturated soil can be written as [3,11]…”

Section: Thm Coupled Governing Equationmentioning

confidence: 99%

“…Bentonite is characterized by a high density and slow seepage and can therefore be modelled by the Richards equation for seepage [11,20]:…”

Section: Thm Coupled Governing Equationmentioning

confidence: 99%

“…Advances in Civil Engineering relationship for the block during the swelling process under load as [11] ]…”

Section: Stress Path Analysesmentioning

confidence: 99%

“…where θ l is the water volume fraction, g is the gravity acceleration vector, E l is an evaporation term, Q v is a source term, p is the water pressure, and K l is the permeability coefficient [11,36]:…”

Section: Appendixmentioning

confidence: 99%

“…e long research cycle of buffer material necessitates the use of numerical calculations for repository design. A largescale test device named China-Mock-Up was used to investigate transfer and swelling during the THM process of buffer material in [11,12], and the study results were analysed. In addition, the application of new methods improves the accuracy of numerical calculation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The Healing Process of the Joints between Buffer Material Blocks and the Influence on Solute Migration

Zhou

Liu

et al. 2021

Advances in Civil Engineering

View full text Add to dashboard Cite

A set of thermo-hydro-mechanical coupling control equations was established, and the healing process of the joints between Gaomiaozi bentonite (GMZ01) buffer material blocks and the influence of the joint parameters were numerically simulated. The calculations consider the effect of joints on solute migration, the permeability and thermal conductivity of the buffer material, and the evolution of the healing effect. The effects of the joint design parameters, including the type, number, width, splicing form, and average dry density of the joint, are investigated. Studies show that, under an external water head, the joints will become hydraulic priority channels due to their higher permeability, which will shorten the saturation time of the blocks. As the bentonite gradually saturates, the swelling force compresses the joint material. This action improves the overall uniformity of the buffer material and reduces the priority channel effect. Meanwhile, the final average permeability and diffusion coefficient of the buffer material are found to mainly depend on the average dry density of the buffer material. The higher the average dry density of the buffer material is, the lower the final average permeability and diffusion coefficient are, whereas the distribution of joints and the block splicing are less affected by the average dry density of the buffer material. The findings of this study can provide a reference for the design of bentonite buffer material blocks in the repository.

show abstract

Section: Thm Coupled Governing Equationmentioning

confidence: 99%

“…Bentonite is characterized by a high density and slow seepage and can therefore be modelled by the Richards equation for seepage [11,20]:…”

Section: Thm Coupled Governing Equationmentioning

confidence: 99%

“…Advances in Civil Engineering relationship for the block during the swelling process under load as [11] ]…”

Section: Stress Path Analysesmentioning

confidence: 99%

Section: Appendixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The Healing Process of the Joints between Buffer Material Blocks and the Influence on Solute Migration

Zhou

Liu

et al. 2021

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

Thermal consolidation of layered saturated soil under time‐dependent loadings and heating considering interfacial flow contact resistance effect

Xie,

Wen,

et al. 2024

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

Due to the presence of tiny gaps at the interface of two layers of saturated soil, water seepage occurs at a slower rate within these gaps, resulting in laminar flow at the interface. Based on the Hagen‐Poiseuille law, a general imperfect flow contact model was established for layered saturated soil interfaces by introducing the flow contact transfer coefficient Rω and the flow partition coefficient ηω. The investigation focused on the thermal consolidation behavior of layered saturated soil foundations under variable loadings considering the flow contact resistance effect at the interface. By employing the Laplace transform and its inverse transform, a semi‐analytical solution for the thermal consolidation of layered saturated soil foundations was derived. In the context of a two‐layer soil system, the effects of Rω, ηω, and permeability coefficient k on the consolidation process were examined. The obtained results were then compared with three other interfacial contact models, thereby confirming the rationality of the presented model. The study findings revealed that the flow contact resistance effect leads to a clear jump in the pore water pressure. Furthermore, an increase in Rω and a decrease in ηω were found to significantly enhance displacement and pore water pressure, while having minimal impact on the temperature increment. These insights contribute to a more comprehensive understanding of the thermal consolidation behavior of layered saturated soil foundations and underscore the significance of accounting for the flow contact resistance effect in such analyses.

show abstract

Interfacial flow contact resistance effect for thermal consolidation of layered viscoelastic saturated soils with semi‐permeable boundaries

Xie,

Wen,

Ding

et al. 2024

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

Laminar flow phenomena may occur when pore water flows at low velocities across the interfaces between soils of different properties, thus causing flow contact resistance. To explore the impacts of interfacial flow contact resistance and rheological characteristics on the thermal consolidation process of layered viscoelastic saturated soil foundation featuring semi‐permeable boundaries. This paper established a new thermal consolidation model by introducing a fractional order derivative model, Hagen–Poiseuille law and time‐dependent loadings. The semi‐analytical solutions for the proposed thermal consolidation model are derived through the Laplace transform and its inverse transform. The reliability and correctness of the solutions are verified with the experimental data in literatures. The influence of constitutive parameters, flow contact resistance model parameters on thermal consolidation process and the interfacial flow contact resistance on foundation settlement, is further explored. The results indicate that the impact of the constitutive parameters and permeability coefficient on the thermal consolidation of viscoelastic saturated soil is related to the flow contact resistance. The enhanced flow contact resistance effect leads to a significant increase in pore water pressure and displacement during the consolidation process.

show abstract

Irreversible consolidation problem of a saturated porothermoelastic spherical body with a spherical cavity

Cited by 40 publications

References 18 publications

The Healing Process of the Joints between Buffer Material Blocks and the Influence on Solute Migration

The Healing Process of the Joints between Buffer Material Blocks and the Influence on Solute Migration

Thermal consolidation of layered saturated soil under time‐dependent loadings and heating considering interfacial flow contact resistance effect

Interfacial flow contact resistance effect for thermal consolidation of layered viscoelastic saturated soils with semi‐permeable boundaries

Contact Info

Product

Resources

About