Article
Chemistry, Physical
Tulio Honorio, Laurent Brochard
Summary: The study investigates the influence of poromechanical conditions on the thermal properties in microporous materials, providing theoretical framework for calculating drained heat capacity and establishing the linear evolution of heat capacities with water content in clays. A hybrid approach combining classical and semi-classical methods is proposed to capture the heat capacity of solid minerals and inter-layer electrolytes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Forestry
Aldis Butlers, Andis Lazdins, Santa Kaleja, Arta Bardule
Summary: This study evaluated soil carbon stock changes in hemiboreal forests with drained and undrained nutrient-rich organic soils, finding that clear-cut soil acted as a carbon dioxide source due to increased respiration and reduced litter input.
Article
Engineering, Geological
Y. Chen, J. Yang
Summary: This paper explores the mechanism of flow liquefaction in granular soils under different drainage conditions and discusses the concept difficulties and diverse views related to the initiation of instability. The study shows that the constant shear drained (CSD) stress path is not a traditional stress-controlled test and its neglect may lead to misleading conclusions. Through systematic simulations, it is demonstrated that the instability line in the stress space is state dependent and can be related to the state parameter defined using critical state concepts.
Article
Engineering, Geological
Pin-Qiang Mo, Haohua Chen, Hai-Sui Yu
Summary: This paper proposes a semi-analytical solution for undrained cylindrical cavity expansion in anisotropic soils. The research shows that structured clays have lower effective stresses at the cavity wall and higher excess pore pressure during expansion, with slightly smaller plastic regions. Anisotropy evolves similarly in structured clays compared to unstructured cases, but with further development as inter-particle bonds are gradually lost. The proposed solution is able to predict the limit pressure of pressuremeter tests in natural structured clays.
Article
Engineering, Geological
Quoc T. Phan, Ha H. Bui, Giang D. Nguyen, Abdelmalek Bouazza
Summary: This study demonstrates that the rolling resistance of silty sand significantly influences its critical state, peak state, and zero-dilatancy state, and the rolling resistance of fine particles can reduce the liquefaction susceptibility of the sand.
Article
Forestry
Aldis Butlers, Andis Lazdins, Santa Kaleja, Dana Purvina, Gints Spalva, Guntis Saule, Arta Bardule
Summary: The aim of this study was to assess the impact of organic soil drainage on CH4 and N2O emissions in hemiboreal forests. The results showed that undrained soil had higher CH4 emissions but lower N2O emissions. In addition, fluctuations in groundwater level also affected CH4 emissions.
Article
Engineering, Geological
Ehsan Pegah, Huabei Liu, Ali Gholami
Summary: The study aimed at proposing an approach for evaluating the drained elastic stiffness parameters in saturated clays using undrained properties. The reliability of this approach was verified through experimental tests and data collection of soil specimens from different soil types.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Geological
Amirreza Fotovvat, Abouzar Sadrekarimi, Michael Etezad
Summary: The drained instability of two gold mine tailings under lateral stress relief is investigated in this study. It was observed that specimens consolidated to the same void ratio and initial stress ratio undergo instability at similar stress ratios or friction angles in both CDS and undrained shear tests. This suggests that the instability characteristic of tailings prone to stress relief can be predicted using undrained triaxial tests on anisotropically consolidated specimens.
Article
Engineering, Mechanical
F. Parrinello, I. Benedetti
Summary: A novel thermodynamically consistent cohesive-frictional model is proposed for analyzing interface degradation and failure in low-cycle fatigue problems. The model combines plasticity and damage mechanics and captures the evolution of damage and plasticity under external loads. The model accurately simulates the behavior of the interface under different loading conditions.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Civil
G. Abou-Samra, V. Silvestri, S. L. Desjardins, R. Labben
Summary: The stress distribution around driven piles in soft clays is a complex problem due to factors such as soil permeability, strength, sensitivity, remoulding, distance from adjacent piles, and number of piles. The mechanisms of pile installation and subsequent consolidation are investigated by considering pile installation as the expansion of a long vertical cylindrical cavity in soft cohesive soils. The stress paths followed by soil elements at the soil-pile interface are analyzed using theoretical relationships obtained during undrained expansion of a cylindrical cavity in soft cohesive soils, modified to account for severe remoulding caused by pile installation.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2021)
Article
Computer Science, Interdisciplinary Applications
Zhaofeng Li, Jun Kang Chow, Jinhui Li, Pei Tai, Zuosheng Zhou
Summary: A new particle-based flexible membrane boundary model was proposed, and through experiments and simulations, the effectiveness and advantages of this new method were demonstrated.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Engineering, Chemical
Wenguang Nan, Yiqing Gu
Summary: This study experimentally investigates the effects of operation conditions and particle properties on the spreadability of metal powder in additive manufacturing. A measure of relative spreadability based on D-90 is proposed, and the concept of dynamic spreadability is introduced to consider the demand of high manufacturing rate. The results show that spreadability is influenced by particle detachment and re-filling process, and there is an optimal spreading speed.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Engineering, Geological
Claudia Regina Bernardi Baldin, Maiky Yamato Kawanami, Weiner Gustavo Silva Costa, Vitor Reinaldo Bordignon, Cristhyano Cavali da Luz, Ronaldo Luis dos Santos Izzo
Summary: This study assessed the effect of adding rice husk fiber on the mechanical behavior of clayey soil. The results showed that adding 1% and 1.5% fiber significantly increased the compressive strength of the soil, while in the undrained tests, the fiber addition decreased the cohesion and increased the friction angle of the soil.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2023)
Article
Engineering, Geological
Xu Wang, Sheng-Li Chen, Jon Jincai Zhang
Summary: This paper expands the graphical analysis concept proposed by Chen and Abousleiman to deduce the undrained expansion solution of a cylindrical cavity in shear strain-hardening Drucker-Prager frictional soil. By solving a first-order differential equation, the deviatoric stress-Lode angle stress path can be determined. The cavity expansion curve can be constructed by calculating the internal cavity pressure and the corresponding expanded cavity radius through simple numerical integrations.
Article
Engineering, Geological
Sang Yeob Kim, Junghee Park, Wonjun Cha, Jong-Sub Lee, J. Carlos Santamarina
Summary: Sediments undergo shear and volumetric strains during freeze-thaw cycles, with the response being influenced by sediment type and drainage conditions. Factors such as ice pore habit, freezing rate relative to pressure diffusion rate, play key roles in sediment response.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2021)
Article
Mathematics, Applied
Omid Kardani, Andrei Lyamin, Kristian Krabbenhoft
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2015)
Article
Computer Science, Interdisciplinary Applications
K. Lim, A. J. Li, A. V. Lyamin
COMPUTERS AND GEOTECHNICS
(2015)
Article
Construction & Building Technology
A. J. Li, S. Khoo, A. V. Lyamin, Y. Wang
AUTOMATION IN CONSTRUCTION
(2016)
Article
Mathematics, Applied
M. Hjiaj, K. Krabbenhoft, A. V. Lyamin
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2016)
Article
Engineering, Geological
Abid Ali, A. V. Lyamin, Jinsong Huang, J. H. Li, M. J. Cassidy, S. W. Sloan
Article
Engineering, Geological
K. Lim, A. V. Lyamin, M. J. Cassidy, A. J. Li
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2016)
Article
Engineering, Geological
K. Lim, M. J. Cassidy, A. J. Li, A. V. Lyamin
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2017)
Article
Engineering, Geological
K. Lim, A. J. Li, A. Schmid, A. V. Lyamin
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2017)
Article
Mathematics, Interdisciplinary Applications
K. Krabbenhoft, A. V. Lyamin, C. Vignes
COMPUTATIONAL PARTICLE MECHANICS
(2018)
Article
Engineering, Civil
An-Jui Li, Zhiguang Qian, Jing-Cai Jiang, Andrei Lyamin
KSCE JOURNAL OF CIVIL ENGINEERING
(2019)
Article
Computer Science, Interdisciplinary Applications
Z. G. Qian, A. J. Li, A. V. Lyamin, C. C. Wang
COMPUTERS AND GEOTECHNICS
(2017)
Proceedings Paper
Engineering, Geological
Abid Ali, A. V. Lyamin, Jinsong Huang, S. W. Sloan, M. J. Cassidy
GEO-RISK 2017: IMPACT OF SPATIAL VARIABILITY, PROBABILISTIC SITE CHARACTERIZATION, AND GEOHAZARDS
(2017)
Article
Computer Science, Interdisciplinary Applications
Abid Ali, A. V. Lyamin, Jinsong Huang, S. W. Sloan, M. J. Cassidy
COMPUTERS AND GEOTECHNICS
(2017)
Article
Engineering, Geological
J. H. Li, M. J. Cassidy, Y. Tian, J. Huang, A. V. Lyamin, M. Uzielli
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2016)
Proceedings Paper
Engineering, Geological
J. H. Li, M. J. Cassidy, Y. Tian, J. Huang, A. V. Lyamin, M. Uzielli
Computer Methods and Recent Advances in Geomechanics
(2015)