Numerical estimate of critical failure surface of slope by ordinary state-based peridynamic plastic model

T Zhang, JZ Zhang - Engineering Failure Analysis, 2022 - Elsevier
In this paper, two-dimensional ordinary state-based peridynamic (OSB-PD) plastic model is
coupled mechanically with the Drucker-Prager (DP) criterion, aiming at numerically …

[HTML][HTML] Modelling artificial ground freezing subjected to high velocity seepage

P Nikolaev, AP Jivkov, L Margetts, M Sedighi - International Journal of Heat …, 2024 - Elsevier
Artificial ground freezing (AGF) is a ground improvement technique for ensuring the safety of
underground construction works in water-bearing soils. High velocity water transport in …

Analysis of heat transfer and water flow with phase change in saturated porous media by bond-based peridynamics

P Nikolaev, M Sedighi, AP Jivkov, L Margetts - International Journal of Heat …, 2022 - Elsevier
A wide range of natural and industrial processes involve heat and mass transport in porous
media. In some important cases the transported substance may undergo phase change, eg …

[HTML][HTML] Non-local modelling of freezing and thawing of unsaturated soils

P Nikolaev, AP Jivkov, L Margetts, M Sedighi - Advances in Water …, 2024 - Elsevier
A large part of the earth's surface is covered by seasonally or permanently frozen soils.
Considering the negative impact of climate change, future development of such regions can …

[HTML][HTML] Peridynamic analysis of thermal behaviour of PCM composites for heat storage

P Nikolaev, AP Jivkov, M Fifre, M Sedighi - Computer Methods in Applied …, 2024 - Elsevier
One possibility to utilize excess energy from electricity generation or other industrial
processes is to use thermal energy storage systems based on phase change materials …

The peridynamic Drucker‐Prager plastic model with fractional order derivative for the numerical simulation of tunnel excavation

T Zhang, X Zhou, Q Qian - International Journal for Numerical …, 2022 - Wiley Online Library
In this study, the peridynamic Drucker‐Prager plastic model with fractional order derivative is
proposed to investigate the plastic behavior of surrounding rocks around tunnels, in which …

Prediction model of particle loss based on seepage tests of sediment in water-level-fluctuation zone of reservoir

Z Zhang, Z Liu, G Liu, Q Sun, W Cui, H Xu… - Engineering Failure …, 2023 - Elsevier
Particle erosion is one of the important factors in the deformation and failure of sediment in
the reservoir slopes during reservoir operation. The determination of the sensitive factors …

[HTML][HTML] Co-transport of less soluble accessory minerals during expansion of compacted bentonite and its impacts on erosion

H Yan, A Jivkov, M Sedighi - Engineering Geology, 2022 - Elsevier
Compacted bentonite is considered as an engineered barrier in geological disposal of
nuclear waste in fractured rocks. One concern with this concept is that the expansion of …

Effects of water chemistry on the generation of GMZ bentonite colloids and colloidal properties

YQ Cai, YG Chen, WM Ye, Q Wang, DB Wu - Environmental Earth …, 2022 - Springer
Bentonite colloidal particles were potential radionuclides migration vectors. For this reason,
the generation behaviors of GMZ bentonite colloids under effects of water chemistry were …

[HTML][HTML] Experimental study on heat and moisture coupling migration behavior of unsaturated bentonite buffer materials for high-level radioactive waste repository

G Yang, B Zhang, Y Liu, N Wu, B Bai, J Xie - Case Studies in Thermal …, 2024 - Elsevier
This paper independently developed a set of experimental equipment that can
approximately simulate the service working environment of unsaturated bentonite buffer. By …