Article
Materials Science, Multidisciplinary
Mingyu Qiao, Guoqing Zhang, Jianhui Deng, Jianwei Guo, Jiangyun Zhang
Summary: This study prepared polyimide separators containing organic montmorillonite, which improved the safety and charge-discharge performance of lithium-ion batteries. The composite separators showed superior thermal stability, flame retardancy, and ion conductivity.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Characterization & Testing
Aijun Yao, Yifei Gong, Yanlin Li, Tian Tian, Chengshun Xu
Summary: In this study, real-time monitoring data of highway slopes were used to evaluate the safety level of slopes and provide early warning. An online monitoring system was established, and hierarchical models for highway slope stability evaluation were generated based on multisource monitoring indexes. The system is suitable for stability evaluation and security classification of highway slopes in mountain areas.
JOURNAL OF TESTING AND EVALUATION
(2022)
Article
Multidisciplinary Sciences
Feng Chen, Xue-bin Wang, Yan-hong Du, Chun-an Tang
Summary: The numerical simulation study reveals that in slope stability monitoring, when stress levels drop to a minimum, it leads to slope instability and destruction, causing plastic deformation and damage to the constant resistance bolt. The comparison of stress curves and acoustic emission (AE) curves shows opposite trends, indicating a failure mode of combined tension and shear in the slope. These results provide new insights for real-time monitoring and prediction of slope stability.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Marine
Zhenzhu Meng, Jinxin Zhang, Yating Hu, Christophe Ancey
Summary: In this study, a temporal relationship between wave characteristics and slide features was built by using a buoyant material called Carbopol to mimic impulse waves generated by snow avalanches. The temporal velocity field and thickness of the slide, as well as the fluctuation of the free water surface, were determined experimentally using the particle image velocimetry technique. A combination of panel data analysis and viscoplastic theory was used to estimate the temporal wave amplitudes based on the initial slide parameters. The proposed theoretical-statistical combined predictive method was validated with experimental data.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Qiang Liu, Aiping Tang, Delong Huang, Lixin Sun
Summary: This study investigates the impact of orthogonal transformation on model performance using the LR model. Factors were first analyzed using landslide inventory and factor theme maps. Effective factors with high correlation were then orthogonally transformed to obtain reconstructed factors, which were combined with other effective factors for model construction. Results demonstrate that the modified model maintains high predictive ability and computational performance, with improved AUC values, specificity, sensitivity, and accuracy compared to the initial model. The modified susceptibility model provides a valuable opportunity for optimizing landslide susceptibility in modeling workflows.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Asmita Ahmad, Meutia Farida, Nirmala Juita, Muh Jayadi
Summary: Generally, areas with high to moderate susceptibility classes have more landslides compared to areas with high susceptibility class. The research conducted soil parameter tests using a split-plot design and found a strong relationship between land use, slope, and soil physics on landslide occurrence. Increased community land use accelerated the formation of soil micromorphology, causing internal shifts in the soil body. The study site's landslide susceptibility map was categorized into seven spatial susceptibility classes. Adding independent parameters such as soil organic carbon factor and soil micromorphology improved the accuracy of the spatial model.
Article
Engineering, Geological
Frederique Tremblauy-Auger, Ariane Locat, Serge Leroueil, Denis Demers, Pierre-Philippe Levasseur
Summary: The Saint-Fabien landslide in Canada in 1976 was unique due to its close-to-horizontal ground and failure surfaces. Possible triggers include peat exploitation and roadworks. Conventional stability analysis failed to explain the landslide formation, but 1D numerical modeling using the concept of progressive failure provided insights into the initiation and propagation of the failure.
CANADIAN GEOTECHNICAL JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Malgorzata Wistuba, Ireneusz Malik, Elzbieta Gorczyca, Albert Slezak
Summary: This study analyzed the long-term relationships between landslide activity and triggering factors in the Western Carpathians, Poland over a period of 68 years. Significant differences in activity and triggers were identified, with explanations provided through individual features of landslide topography and structure. Optimal sequences of triggers leading to heavy landsliding for each slope were determined, establishing regimes of activity. The study demonstrates the efficiency of a long-term approach in describing and explaining landslide activity and hazards over space and time.
Article
Engineering, Environmental
Lichun Jiang, Gege Wang, Luanluan Xue, Lijuan Jia
Summary: Effective slope stabilization measures in deep open-pit mines are crucial for ensuring safety and economic benefits. This study proposes an innovative method for slope remediation based on field investigations and numerical simulations. The method involves creating an in situ foundation embankment and a restraining embankment to stabilize the slope. The safety factor of the embankment slope is analyzed, and the proposed method is validated using field monitoring results from the Lishan Iron Mine.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Construction & Building Technology
Xiaowei Wang, Jiaxing Ren, Xinyu Hu, Qiang Li, Xiaoping Ji
Summary: The aim of this study is to develop a meso-scale finite element modeling considering the random inhomogeneous distribution of binder to investigate the adhesive/cohesive failure behaviors of porous asphalt mixtures (PAC). The study found that the adhesive/cohesive strength of the binder increased with its thickness, and the random inhomogeneous distribution of the binder had a significant impact on the damage initiation and evolution of adhesive/cohesive failure behaviors of PAC.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Geological
Ahmad Rajabian, Sanjay Kumar Shukla
Summary: The stability of earth slopes can be improved by incorporating an anchoring system. Evaluating the stability requires determining the factor of safety, which can be predicted using various methods and software programs. This study developed an analytical expression based on the friction circle method to predict the factor of safety using Taylor's stability chart for anchor-reinforced slopes. The results showed good agreement with the limit equilibrium method.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2023)
Article
Mathematics, Applied
Luigi Ambrosio, Massimo Fornasier, Marco Morandotti, Giuseppe Savare
Summary: In this study, a mean-field model for a system of spatially distributed players interacting through an evolutionary game driven by replicator dynamics is introduced and examined. The evolution is described using Lagrangian and Eulerian descriptions, with the equivalence, existence, uniqueness, and stability of the solution proven. As a result of the stability analysis, convergence of the finite agents model to the mean-field formulation is obtained as the number of players approaches infinity.
COMMUNICATIONS ON PURE AND APPLIED MATHEMATICS
(2021)
Article
Geochemistry & Geophysics
Pengfei Jiang, Yuanyuan Kong, Zhenyu Song, Ruixin Zhao, Jiewei Zhan, Xuhui Lin
Summary: Through laboratory tests and analysis, it is found that the Wangyan highway landslide is caused by a combination of factors such as the properties of expansive soil, water content in cracks, artificial filling load, and traction of old landslides. Additionally, the soil in the sliding zone has a specific microstructure that affects its deformation properties.
Article
Geosciences, Multidisciplinary
Bo Xu, Qisong Huang, Yuandi Qian
Summary: The study of creeping landslide stability trends based on monitoring data is valuable for understanding and managing the gradual destruction of the affected environment. Through the analysis of stress, strain, and displacement in the Jinpingzi landslide area II, the study confirms the relationship between internal failure pattern, safety factor, and key point displacement of creeping landslides. The results also demonstrate the stable damage deformation in the area, consistent with field analysis and geologic exploration.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Multidisciplinary
Ningtao Wang, Lei Liu, Tingting Shi, Yun Wang, Jue Huang, Runqing Ye, Zhipeng Lian
Summary: Affected by reservoir water and rainfall, the stability of a landslide changes with the decline rate of the reservoir water level. Using Baota landslide in Yunyang County as an example, numerical simulation is applied to calculate the groundwater seepage field during reservoir water level rise and decline. The results show that the decline in groundwater seepage lines somewhat increases with the increase of the rate of decline in the reservoir water level. The stability coefficient of the landslide under each working condition is larger than the original design.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
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)
Article
Computer Science, Interdisciplinary Applications
Yinghao Deng, Yang Xia, Di Wang, Yan Jin
Summary: This study investigates the mechanism of hydraulic fracture propagation in laminated shale, develops a numerical solver, and validates the effectiveness of the method through simulation experiments. The study also examines the influence of the interaction between hydraulic fractures and weak interfaces on the mechanical properties of shale.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhichao Zhang, Mingfei Feng, Guangshuo Zhou, Zhenglong Xu
Summary: A thermodynamic constitutive model for structured and destructured clays is proposed in this paper. The model includes state-dependent relations of hyperelasticity and plasticity without the concept of yielding surface. The proposed model captures the couplings between elasticity and plasticity and the effects of bonding structure.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Deze Yang, Xihua Chu
Summary: Creep and stress relaxation behaviors in granular materials are influenced by the time-dependent changes in their microstructure, with particle shape playing a significant role. However, the effects of particle shape on these behaviors are still not well understood. In this study, 3D DEM models incorporating the rate process theory and superellipsoids are used to simulate creep and stress relaxation in granular samples with different aspect ratios and blockiness. The results show that both aspect ratio and blockiness have a significant influence on creep and stress relaxation, with aspect ratio affecting creep through contact force ratio and blockiness affecting stress relaxation through variation in normal contact force anisotropy. These findings provide insights into the effects of particle shape on creep and stress relaxation in granular assemblies.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Shahab Amanat, Kourosh Gholami, Reza Rafiee-Dehkharghani, Dipanshu Bansal
Summary: This paper investigates the optimal design of wave barriers using the modified non-dominated sorting genetic algorithm-II (NSGA-II) and the Bloch-Floquet theory. The aim is to find the optimal design of plane wave barriers with a wide bandgap at a low-frequency range and low construction cost. The study develops a modified NSGA-II algorithm to determine the optimal arrangement of concrete in wave barrier unit cells. The performance of the optimal barriers is examined through finite element simulation and their efficacy in attenuating plane S-waves is verified.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Yanlin Su, Guoqing Cai, Fengjie Yin, Yepeng Shan, Annan Zhou
Summary: This paper presents a novel elastic-viscoplastic constitutive model that takes into account particle breakage to reproduce the time-dependent behavior of coarse-grained soil. The model integrates the Unified Hardening (UH) model, the elastic-viscoplastic (EVP) model, and the overstress theory. The relationship between particle breakage and loading rate is established, and state variables associated with the critical state of coarse-grained soil are derived to consider both time and particle breakage. A three-dimensional elastic-viscoplastic constitutive model is constructed by combining a one-dimensional viscoplastic hardening parameter with a secondary consolidation coefficient considering particle breakage. The proposed model requires 19 parameters and effectively describes the influence of time-dependency and particle breakage on the shear, dilatancy, and compression behaviors of coarse-grained soil with different confining pressures or initial void ratios. Experimental data comparisons validate the model's ability to replicate the time-dependent behavior of coarse-grained soil.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Shichao Zhang, Yaqiong Wang, Qidong Gao, Xiaobo Ma, Haixiao Zhou, Zhifeng Wang
Summary: Accurately evaluating and predicting ground settlement during tunnel excavation is essential for ensuring tunnel stability. This study conducted a probabilistic analysis of ground settlement under uncertain soil properties. The results demonstrate that spatially variable soils significantly influence the ground settlement in the vertical direction.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Xu Zhang, Bin Luo, Youjun Xu, Zhiwen Yang
Summary: This paper presents an analytical solution for horizontal displacements induced by small radius curve shield tunneling. The formula is derived based on the image method and Mindlin solution, considering additional thrust, frictional resistance, ground loss, and grouting pressure. The solution is validated with on-site data, demonstrating its reliability and providing a new approach for predicting and controlling stratum horizontal displacements in curve shield tunneling. The study finds that ground loss has the most significant influence on displacements, and soil closer to the tunnel exhibits larger horizontal displacements.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Jian-Hong Wan, Ali Zaoui
Summary: Ground vibrations during earthquakes can cause soil strength loss and structural damage. Rubber-soil mixtures (RSM) have shown promise in reducing residual ground deformation. This study used molecular dynamics simulations to investigate the friction behavior of the rubber-clay interface in RSM systems. The results revealed a direct correlation between normal stress and friction force, with denser soil systems exhibiting higher friction forces.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Hongying Wang, Qiang Zhang, Peinan Wu, Yanjing Li, Lijun Han, Guilei Han
Summary: In addition to the Mohr-Coulomb and Hoek-Brown criteria, other nonlinear functions are used to describe the plastic response of rock mass. This paper derived the equivalent cohesive strength, frictional angle, and dilatancy angle for nonlinear yield and plastic flow rock masses. The solution for a circular tunnel in any nonlinear yield and plastic flow rock masses was derived and verified using a numerical procedure. The analysis of strain-softening rock masses under two assumed nonlinear yield criteria was also studied.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhijun Wu, You Wu, Lei Weng, Mengyi Li, Zhiyang Wang, Zhaofei Chu
Summary: This study proposed a machine learning approach to predict the uniaxial compression strength (UCS) and elastic modulus (E) of rocks. By measuring meso-mechanical parameters and developing grain-based models, a database with 225 groups of data was established for prediction models. The optimized kernel ridge regression (KRR) and gaussian process regression (GPR) models achieved excellent performance in predicting UCS and E.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Mingjun Zhou, Zhenming Shi, Chong Peng, Ming Peng, Kahlil Fredrick E. Cui, Bo Li, Limin Zhang, Gordon G. D. Zhou
Summary: In this paper, the erosion and deposition processes during overtopping dam breaching are simulated using a novel method (ED-SPH). The proposed model is able to capture the complex behaviors of dam soil erosion, entrainment, and depositions. Soil deposition hinders particle movement and reduces water velocity at the water-soil interface.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
C. Chavez-Negrete, F. J. Dominguez-Mota, R. Roman-Gutierrez
Summary: To accurately simulate groundwater flow in porous layered media, it is important to consider all environmental factors and use a generalized finite differences scheme as a meshless method for spatial discretization. This approach ensures robustness and accuracy of the numerical solution.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Shuairun Zhu, Lulu Zhang, Lizhou Wu, Lin Tan, Haolong Chen
Summary: This paper investigates the effectiveness of the cascadic multigrid method applied to the improved Picard iteration method for solving nonlinear problems in deforming variably saturated porous media. Two improved Picard iteration methods are proposed, and their effectiveness is verified through numerical examples. The results show that the improved methods have faster convergence and higher computational efficiency compared to the classical method.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Yuan Cao, Yan-Guo Zhou, Kyohei Ueda, Yun-Min Chen
Summary: Investigated shear stress responses of enclosed soil in deep soil mixing (DSM) grid-improved ground, and revealed the characteristics of the waist effect and mathematical model for shear stress reduction ratio.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Jinfan Chen, Zhihong Zhao, Jintong Zhang
Summary: This study develops data-driven criteria to estimate the peak shear strength (PSS) of rock fractures, considering the effects of surface roughness features. A high-quality dataset is created using particle-based discrete element method and diamond-square algorithm. Tree-based models and convolutional neural network are trained to predict the PSS of rock fractures, and their reliability is verified using experimental data.
COMPUTERS AND GEOTECHNICS
(2024)