Article
Multidisciplinary Sciences
Kelifa Shirago, Democracy Dirate
Summary: In this study, cut slopes were analyzed using the 2D limit equilibrium method (LEM) and the 3D strength reduction method (SRM) with numerical software. Representative soil samples were collected for laboratory tests to determine input parameters. The analysis showed that the factor of safety (FOS) for 2D analysis was higher than that for 3D analysis.
Article
Geosciences, Multidisciplinary
Geshu Khare, Vipin Kumar, Sahil Sardana, Gajendra K. Vishwakarma
Summary: In this study, a comprehensive analysis of slope stability was conducted around the Atal tunnel in the Himalayas, India. The stability assessment was carried out using the limit equilibrium method, and a detailed analysis was performed on one specific slope. The results showed an improvement in the factor of safety for the slope under conditions of reinforced soil.
GEOMATICS NATURAL HAZARDS & RISK
(2022)
Article
Environmental Sciences
Yaser Ahangari Nanehkaran, Tolga Pusatli, Jin Chengyong, Junde Chen, Ahmed Cemiloglu, Mohammad Azarafza, Reza Derakhshani
Summary: This study compares five different machine learning models to predict slope safety factors and finds that the multilayer perceptron (MLP) model has the highest accuracy and precision.
Article
Engineering, Geological
Emad Khorasani, Mehdi Amini, Edmund Medley, Sadegh Tarigh Azali, Mohammad Farouq Hossaini
Summary: This paper investigates the factors affecting the stability of Bimslopes using the finite-element method and proposes an equation to estimate the safety factor of Bimslopes through multivariate regression analysis. The influence of block configurations and groundwater levels on Bimslope stability is also examined, and the validity of the proposed procedures is verified using a real failed Bimslope case study.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Engineering, Mechanical
Ibrahim Mbouombouo Ngapouth, Jorelle Larissa Meli'i, Marthe Mbond Ariane Gweth, Blaise Pascal Gounou Pokam, Yvonne Poufone Koffi, Michel Constant Njock, Michel Andre Pouth Nkoma, Philippe Njandjock Nouck
Summary: This study used geometric, kinematic and seismic methods to analyze the stability of slopes cut into gneiss, revealing that these slopes are generally unstable due to their sharp angles, confirming the sensitivity of the slopes to falling particles, and suggesting mitigation measures.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Computer Science, Interdisciplinary Applications
Z. L. Zhang, X. L. Yang
Summary: This paper develops a unified analytical framework to consider the local and global instability of a compound slope and provides a more rigorous solution for stability assessment. Through a hybrid optimization of the objective function, the critical safety factor and slip surface can be obtained. The results show good capability in implementing stability analysis and reveal the influence of slope geometry, soil strength, and external excitation on slope stability and failure pattern.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Geological
Yu Huang, Wenwen Wang, Liuyuan Zhao, Min Xiong
Summary: This paper proposes a probabilistic simulation method of slope stochastic dynamic reliability considering the randomness of seismic ground motions and the failure time. The method combines the finite element method and the limit equilibrium method, along with Monte Carlo Simulation and first-passage theory, to obtain probability density functions and fluctuation characteristics of factor of safety and displacement indicators. The results indicate the importance of considering the first passage event in the evaluation of slope nonlinear dynamic time-history stability and suggest caution in using normal distribution hypothesis for slope systems under strong seismic loading.
ENGINEERING GEOLOGY
(2022)
Article
Engineering, Civil
Jeong-Yeon Yu, Jong-Won Woo, Kyung-Nam Kang, Ki-Il Song
Summary: This study aims to establish the correlations between variables related to a slope during rainfall and factor of safety (FOS) and displacement. The results show that the contributions of various slope-related variables vary according to the soil type, and the friction angle and cohesion are negatively correlated with displacement while the rainfall duration and rainfall intensity are positively correlated with displacement.
GEOMECHANICS AND ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Amin Iraji, Javad Karimi, Suraparb Keawsawasvong, Moncef L. Nehdi
Summary: This study developed an efficient hybrid optimization technique for evaluating the minimum safety factor of earth slopes. The proposed algorithm combines global search and local search to improve efficiency, and its superiority is demonstrated through numerical experiments.
Article
Environmental Sciences
Tewodros Tsegaye Woldesenbet, Tadesse Gemechu Telila, Fekadu Fufa Feyessa
Summary: This article investigated the causes of a landslide that occurred in Tullu Gola Peasant Association, West Arsi Zone, Oromia, Ethiopia, using geotechnical conditions and geophysical techniques. The study found that the landslide was caused by a combination of circumstances, including soil type, high rainfall, deforestation, and nearby streams. Corrective measures to mitigate the risk of landslides, such as slope drainage, soil grouting, tree planting, and gabion construction, were suggested.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Engineering, Geological
Gisela Domej, Marco Previtali, Riccardo Castellanza, Daniele Spizzichino, Giovanni B. Crosta, Alberto Villa, Nicoletta Fusi, Mikheil Elashvili, Claudio Margottini
Summary: This study assesses the static stability of the artificial Sabereebi Cave Monastery in Georgia and presents a strategy to process point cloud data, turning it into high-resolution CAD models. The study explores various geomechanical scenarios using static elasto-plastic finite element stability models.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Construction & Building Technology
Juan Yue, Zhenzhong Shen, Liqun Xu, Kailai Zhang
Summary: This study numerically investigates the impact of calcium leaching on the stability of concrete gravity dams and presents a relationship between the bonded cohesion of the concrete-rock interface and the CaO/SiO2 ratio of CSH. The results show that calcium leaching reduces dam stability, and the hydraulic conductivity of the grout curtain and the rock foundation type significantly affect the dam factor of safety. Improving dam stability in the leaching process can be achieved by reducing the initial hydraulic conductivity of the grout curtain.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Geosciences, Multidisciplinary
Arsalan Mahmoodzadeh, Mokhtar Mohammadi, Hunar Farid Hama Ali, Hawkar Hashim Ibrahim, Sazan Nariman Abdulhamid, Hamid Reza Nejati
Summary: This study utilized six machine learning techniques to analyze and evaluate 327 slope cases in Iran, with the GPR model identified as the most accurate predictor of slope stability. All features considered in the study made significant contributions to slope stability, with phi (friction angle) and gamma (unit weight) being the most important and least important parameters, respectively.
Article
Engineering, Geological
Agnese Innocenti, Veronica Pazzi, Lorenzo Borselli, Massimiliano Nocentini, Luca Lombardi, Giovanni Gigli, Riccardo Fanti
Summary: This paper presents a back-analysis study on the Pomarico landslide in Italy, using the limit equilibrium model (LEM) and the SSAP software. The study reveals the instability of the slope in relation to the water table level and provides insights into the causes and damages of the landslide.
Article
Engineering, Geological
Sabatino Cuomo, Angela Di Perna, Mario Martinelli
Summary: Numerical modelling, particularly fully-coupled hydro-mechanical large-deformation models, helps to simulate the complex failure and post-failure mechanisms of rainfall-induced landslides. The combination of LEM, FEM, and MPM allows for a comprehensive analysis of landslide processes, with traditional tools like LEM and FEM still playing crucial roles in engineering practice and research.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Environmental
Ali Tolooiyan, Ashley P. Dyson, Mojtaba Karami, Tahereh Shaghaghi, Mohsen Ghadrdan
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2020)
Article
Computer Science, Interdisciplinary Applications
Ashley P. Dyson, Ali Tolooiyan
SIMULATION MODELLING PRACTICE AND THEORY
(2020)
Article
Engineering, Geological
Mojtaba Karami, Ali Tolooiyan
ENGINEERING GEOLOGY
(2020)
Article
Computer Science, Interdisciplinary Applications
Tahereh Shaghaghi, Mohsen Ghadrdan, Ali Tolooiyan
SIMULATION MODELLING PRACTICE AND THEORY
(2020)
Article
Computer Science, Interdisciplinary Applications
Tahereh Shaghaghi, Mohsen Ghadrdan, Ali Tolooiyan
SIMULATION MODELLING PRACTICE AND THEORY
(2020)
Article
Energy & Fuels
Jianhua Wen, Zhan Tang, Ashley P. Dyson, Ali Tolooiyan
Summary: The research investigates the fracture characteristics of Victorian Brown Coal and its relationship with joint compressive strength, finding that pre-fractured VBC shows reduced uniaxial compressive strength under various crack angles, with significantly different fracture propagation characteristics. Experimental results suggest that pre-existing crack angles alter the shape of the stress-strain curve, presenting a range of unconfined compressive strengths and crack initiation strengths.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2021)
Article
Energy & Fuels
Mohsen Ghadrdan, Ashley P. Dyson, Tahereh Shaghaghi, Ali Tolooiyan
Summary: The accuracy of geological profiles significantly impacts slope stability and necessitates probabilistic methods for localized deposits; Commercial software lacks the capability to simulate probabilistic constitutive behavior in large-scale stratigraphic analysis; This research aims to implement a simplified method for probabilistic stratigraphic analysis to assess the effects of stratigraphic uncertainty on slope stability.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2021)
Article
Mechanics
Gholamreza Kefayati, Ali Tolooiyan, Andrew P. Bassom, Kambiz Vafai
Summary: This study introduces a mesoscopic method based on the lattice Boltzmann method for investigating the behavior of non-Newtonian fluids in porous media. By modeling power-law fluids in different REV models of porous media, a general mesoscopic model for both two- and three-dimensional cases was developed, and successfully used to simulate natural convection and double-diffusive natural convection in porous media.
Article
Engineering, Geological
Ali Tolooiyan, Ashley P. Dyson, Mojtaba Karami, Tahereh Shaghaghi, Mohsen Ghadrdan, Zhan Tang
Summary: The combination of cookie-cutter insertion technique and sonic drill rig provides a new method for pressuremeter testing in soft rock, avoiding damage to traditional testing equipment in gravel and hard materials. This method allows for sample recovery and further laboratory testing.
ENGINEERING GEOLOGY
(2021)
Correction
Engineering, Geological
Hassan Jamali, Ali Tolooiyan
Summary: The header values in Table 1 were incorrectly published in the original article.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2021)
Article
Engineering, Geological
Hassan Jamali, Ali Tolooiyan
Summary: This study investigates the effect of varying sand content on the post-earthquake liquefaction behavior of Coode Island Silt (CIS) in the state of Victoria, Australia. The findings suggest that sand content up to 60% does not impact the liquefaction potential, while cyclic loading significantly increases post-cyclic stiffness.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2021)
Article
Engineering, Geological
Ashley P. Dyson, Ali Tolooiyan
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2020)
Article
Engineering, Geological
M. Ghadrdan, T. Shaghaghi, A. Tolooiyan
GEOTECHNIQUE LETTERS
(2020)
Review
Engineering, Geological
Lysandros Pantelidis
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2020)
