Article
Environmental Sciences
Jun Li, Bin Li, Kai He, Yang Gao, Jiawei Wan, Weile Wu, Han Zhang
Summary: Underground mining activity in the karst mountain in southwestern China has caused several large-scale rocky landslides and serious casualties. This study used a combination of methods including UAV photography, geophysical detection, and numerical simulation to investigate the formation mechanism of landslides. The results revealed the stages of the failure process and the main causes of the landslides, providing ideas for the prevention and mitigation of similar disasters.
Article
Engineering, Geological
Kewei Feng, Gang Wang, Duruo Huang, Feng Jin
Summary: The Material Point Method (MPM) was improved in this study to simulate coseismic slope stability and liquefaction-induced embankment failure under earthquake loading. The results demonstrate the advantage of MPM in handling liquefaction-induced large deformations, with the potential to quantitatively assess risks and consequences associated with seismic slope failure and soil liquefaction.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2021)
Review
Green & Sustainable Science & Technology
Joram Wachira Mburu, An-Jui Li, Horn-Da Lin, Chih-Wei Lu
Summary: In the past 30 years, research on rainfall-induced landslides has made significant progress. The contribution of matric suction and water flow in unsaturated soils has been widely accepted. However, the application of unsaturated soil mechanics in geotechnical engineering practice has been slow due to practical limitations. This paper conducts a parametric study on unsaturated silty slopes and identifies the suitable slope and hydrologic conditions for preliminary stability analysis. The results show that suction plays a significant role in silt/clay slopes with a water table below the mid-height of the slope, while slope height becomes the primary controlling factor for slopes with a height of 20 m or more and a high water table. Two case studies are presented to review the application of geotechnical software in rainfall seepage and stability analyses of unsaturated slopes, which demonstrate notable differences in output results due to different methods and approaches.
Article
Computer Science, Interdisciplinary Applications
Penghai Deng, Quansheng Liu, Xing Huang, Yucong Pan, Jian Wu
Summary: The failure modes of anisotropic rock masses, such as composite failure, V-shaped notch failure, and spalling of bedding planes, are influenced by mechanical parameters, environmental conditions, and excavation factors. As rock mass strength and lateral pressure coefficient increase or tunnel span decreases, the failure mode shifts from composite failure to V-shaped notch failure. The effect of elastic modulus on the failure mode is weak, and the influence of rock layer dip angle is complex.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Engineering, Geological
Bing Li, Huiming Tang, Wenping Gong, Zhan Cheng, Tianzheng Li, Lei Wang
Summary: This study uses the discrete element method to analyze the runout behavior of the Kamenziwan landslide in the Three Gorges Reservoir region. Through field survey and numerical modeling, the geological characteristics, failure mechanism, and runout behavior of the landslide are analyzed. The findings are of great importance for landslide risk assessment.
Article
Construction & Building Technology
Limin Tang, Xiuyan Zhao
Summary: This article introduces the application of interval number representation in pavement structure design, analyzing the algorithm of interval numbers and proposing a simple and easy way to implement the application, suitable for direct use for existing point numerical calculation tools and software.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Engineering, Environmental
Zongyuan Ma, Hongjian Liao, Faning Dang, Yuxiang Cheng
Summary: A method for efficient seismic slope stability analysis and failure process simulation is proposed, focusing on the influence of soil dynamic mechanical behavior and ground motion characteristics on seismic slope stability. The study highlights the critical role of the frictional resistance characteristic of the slope rupture surface in the sliding distance of the slope under seismic conditions.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Civil
Renaud Franssen, Serhan Guner, Luc Courard, Boyan I. Mihaylov
Summary: The study proposes a numerical material modeling approach for the nonlinear finite element analysis of UHPFRC to simulate both shear- and flexure-critical members made from strain-softening or -hardening UHPFRC. The approach aims to capture the unique behavior of UHPFRC using a comprehensive set of crack spacing formulations and modeling recommendations. When applied to experimental data, the proposed modeling approach accurately predicts the strength ratios with a low coefficient of variation.
ENGINEERING STRUCTURES
(2021)
Article
Chemistry, Multidisciplinary
Yu-Xiang Xia, Po Cheng, Man-Man Liu, Jun Hu
Summary: This study investigates an analysis method for the stability of a 3D slope with weak zones considering spatial variability, utilizing two-phase random media and the finite element method. The proposed model was validated to be effective and the inclination of weak zones was found to affect the safety factor.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Jinsheng Li, Xueqi Li, Mingyuan Jing, Rui Pang
Summary: The failure mechanism of MSE walls was studied using numerical analysis with the finite element strength reduction method. The effects of reinforcement, geometry, and seismic parameters on failure mechanism control at the design stage of MSE walls were explored to avoid errors caused by assumptions of failure mode and complex input parameters.
Article
Engineering, Environmental
Gengqian Nian, Zhonghui Chen, Lingfei Zhang, Min Bao, Zihan Zhou
Summary: A numerical method combining the numerical solutions of rainfall infiltration with the upper-bound theorem of the limit analysis kinematic method is proposed to investigate the 3D stability of a slope under variable rainfall conditions. The safety factors and failure patterns of the slope are calculated and compared to verify the reliability of the method. The results show that increasing rainfall has the strongest effect on slope stability, and the 3D stability analysis is more practically important than the 2D plane strain analysis.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Computer Science, Interdisciplinary Applications
Liang Wang, Qinghua Lei
Summary: In this paper, a novel numerical model incorporating a damage mechanics formulation into the particle finite element method is developed to analyze the pre- and post-failure behavior of faulted rock slopes. The model is able to accurately simulate the damage evolution of rocks and the mechanical properties of fault zones, and capture the initiation, evolution, and consequence of catastrophic rock slope failure across multiple temporal scales.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Construction & Building Technology
Kamyar Kildashti, Stephen Nash, Bijan Samali
Summary: This study experimentally and numerically analyzed the in-plane lateral performance of modular concrete form squat walls composed of prefabricated PVC permanent forms and reinforced concrete cores. The results showed that the PVC encasement provided additional confinement to the concrete core, but the interaction between the encasement and the concrete resulted in an irregular internal concrete core. Furthermore, the peak lateral load capacity and post-peak negative stiffness of the walls were highly influenced by the axial load ratio, and the influence of concrete strength on the lateral response was proportional to the axial load ratio.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Geography, Physical
Corinne Singeisen, Chris Massey, Andrea Wolter, Richard Kellett, Colin Bloom, Tim Stahl, Caleb Gasston, Katie Jones
Summary: This study analyzes three landslides triggered by the 2016 earthquake in New Zealand's South Island using 3D pixel tracking and geomorphic mapping. The results show that failure mechanisms and displacement patterns vary in different geological settings.
Article
Automation & Control Systems
Zhenmeng Cui, Liang Han, Guancheng Dong, Yangzhen Gao, Shuaishuai Fan
Summary: Scraping is a metalworking method that involves manual operation to achieve good flatness, low friction, and lubricating properties on metal surfaces. This study focuses on developing a scraping force prediction model using kinematics, material properties, and size effects. The results provide a basis for real-time monitoring and optimization of scraping parameters.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Geological
Enrico Conte, Luigi Pugliese, Antonello Troncone
ENGINEERING GEOLOGY
(2019)
Article
Environmental Sciences
Antonello Troncone, Enrico Conte, Luigi Pugliese
Article
Engineering, Geological
Enrico Conte, Luigi Pugliese, Antonello Troncone
ENGINEERING GEOLOGY
(2020)
Article
Environmental Sciences
Antonello Troncone, Luigi Pugliese, Enrico Conte
Article
Engineering, Geological
Antonello Troncone, Luigi Pugliese, Giacomo Lamanna, Enrico Conte
Summary: A novel method is proposed in this study to evaluate rainfall-induced movements of landslides in the presence of stabilizing piles, using a water balance equation and motion equation. The method is attractive from an engineering perspective, as it can be readily implemented and requires few input parameters, making it suitable for predicting landslide movements in relation to rainfall scenarios.
ENGINEERING GEOLOGY
(2021)
Article
Environmental Sciences
Antonello Troncone, Luigi Pugliese, Andrea Parise, Enrico Conte
Summary: In this study, landslides cyclically reactivated by water-table oscillations due to rainfall were investigated, and a new approach was developed to predict the mobility of these landslides. A two-wedges model was used to schematize the moving soil mass, and analytical solutions were derived to link rain recordings with water-table fluctuations and in turn to landslide displacements. The proposed method showed promising forecasting capacity for landslides activated by rainfall.
Article
Engineering, Geological
Antonello Troncone, Luigi Pugliese, Enrico Conte
Summary: This study presents an analysis of a landslide that occurred in Calabria, Southern Italy in 2014. The triggering mechanism and evolution of the landslide are investigated using the material point method and a strain-softening Mohr-Coulomb constitutive model. The numerical simulation accurately reproduces the observed failure surface, displacement magnitude, and final configuration of the landslide body. The findings contribute to the prediction and prevention of similar landslides.
ENGINEERING GEOLOGY
(2022)
Article
Engineering, Geological
Enrico Conte, Luigi Pugliese, Antonello Troncone, Mirko Vena
Summary: This paper investigates the behavior of piles under inclined compressive loads and proposes a simple-to-use method for evaluating the bearing capacity of piles. Comparisons with numerical results and experimental data show that the proposed approach has good reliability, with better predictive capability than other simplified methods in the literature.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2021)
Article
Engineering, Geological
Enrico Conte, Luigi Pugliese, Antonello Troncone
Summary: This study proposes a novel method for predicting the earthquake-induced permanent displacements of retaining walls in seismic areas. The method is reliable and simple to use, providing consistent results with experimental and numerical findings.
Article
Engineering, Geological
Enrico Conte, Luigi Pugliese, Antonello Troncone
Summary: This study presents a practical method for predicting shallow landslide triggers based on physically-based models and derived closed-form expressions. The approach considers two typical triggering mechanisms and provides rainfall threshold curves that explicitly depend on basic parameters.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2022)
Article
Environmental Sciences
Antonello Troncone, Luigi Pugliese, Enrico Conte
Summary: A simplified method for assessing slope stability due to rainfall is proposed in this study. The method predicts the probability of landslide occurrence based on mathematical models and known parameters, and its effectiveness is verified using real case studies.
Article
Environmental Sciences
Antonello Troncone, Luigi Pugliese, Enrico Conte
Summary: This study proposes a simple-to-use method for predicting the occurrence of shallow landslides due to rainfall. The method combines the evaluation of pore water pressure changes caused by infiltration with the calculation of the critical value of pore water pressure using the infinite slope scheme. It requires only a few input parameters, which can be obtained from conventional tests.
Article
Engineering, Geological
Antonello Troncone, Luigi Pugliese, Andrea Parise, Enrico Conte
Summary: Slope movements can be classified into four phases: pre-failure, failure, post-failure, and eventual reactivation. Traditional numerical techniques are not suitable for analyzing the post-failure stage due to the large deformations involved. In this study, the material point method (MPM) is used to analyze a landslide in sensitive clays, with satisfactory results compared to field observation.
GEOTECHNICAL RESEARCH
(2023)
Article
Engineering, Geological
A. Troncone, L. Pugliese, A. Parise, E. Conte
Summary: This paper focuses on the numerical simulation of deformation processes in slopes with strain-softening soils. The material point method is used in conjunction with a strain-softening Mohr-Coulomb constitutive model, and a novel procedure based on the results of direct shear tests is presented to evaluate model parameters and reduce mesh dependency.
GEOTECHNIQUE LETTERS
(2022)
Article
Environmental Studies
Sina Shaffiee Haghshenas, Sami Shaffiee Haghshenas, Zong Woo Geem, Tae-Hyung Kim, Reza Mikaeil, Luigi Pugliese, Antonello Troncone
Summary: This study utilized machine learning techniques to assess the stability condition of homogeneous slopes and found that the Harmony Search algorithm is an efficient approach for training K-means algorithms, providing insight into evaluating slope stability.
