Article
Chemistry, Multidisciplinary
Mehmet Salih Keskin, Sedat Kezer
Summary: The stability of slopes in MSW landfills is a significant issue in landfill design. This study investigates the effects of using geogrid reinforcement on slope stability. The results show that geogrid materials can greatly enhance the stability of landfill slopes, allowing for greater storage capacity and economic benefits.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Environmental
Tesfay Kiros Mebrahtu, Thomas Heinze, Stefan Wohnlich, Michael Alber
Summary: The study assesses the stability of slopes in the western margin of the Main Ethiopian Rift to minimize damage caused by slope failure events, finding that the studied slopes are unstable and any small-scale disturbance will reduce the factor of safety and cause failure.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Engineering, Geological
Zhenning Su, Longtan Shao
Summary: A new three-dimensional slope stability analysis method is proposed based on the finite element method for stress calculation. The method can easily calculate both local and global safety factors of the slip surface and uses an improved ellipsoidal slip surface construction method and two-stage particle swarm optimization to search for the critical slip surface more accurately. The study reveals the influence of various factors on the calculation results and validates the effectiveness of the proposed method through numerical examples and comparison with the strength reduction method.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Civil
Grzegorz Dmochowski, Piotr Berkowski, Jerzy Szolomicki, Barbara Gronostajska, Jaroslaw Krazelewski
Summary: The article describes the creation process of a computational model for stability analysis of a harbor wharf's embankment. Historical analysis, material testing, environmental conditions, possible load systems, and 3D modeling were considered to simulate the embankment's stability. The study proposed a possible process of destruction for the harbor wharf and cooperating river embankment.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Construction & Building Technology
Xia Bian, Jiaxing Liu, Lichao Nie, Shenggang Ma, Wenbing Tao, Chengchun Qiu, Guizhong Xu
Summary: This study investigates the deformation and stability of high slopes under different working conditions to address the potential risks posed by slope collapse. Through a case study, the behavior of a specific high slope project is examined, and reliability theory is employed to analyze the probability of slope failure. The results show that the anchor and frame beam support scheme demonstrates the most effective performance in terms of slope stability. These findings provide valuable insights for similar slopes reinforced by anchor and frame beam systems.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Dongbin Yin, Huifen Liu, Jingwen Yan, Jianqiang Wang
Summary: Hydropower plants in the middle and southern section of the north-south zone of China are often located in complex geological settings with active faults. It is crucial to evaluate the slope stability considering various loading scenarios for ensuring the safe operation of these power stations. Through the use of the rigid body limit equilibrium method and the finite element method, the effects of long-term load and seismic load on slope stability for a large hydropower station were investigated. The results indicate that the slope safety factors meet the stability requirements under long-term load and the Wenchuan and Lushan earthquake loads. However, under the design earthquake load, the slope safety factor falls below the accidental working condition safety factor of 1.05, highlighting the need for effective seismic defense measures.
Article
Engineering, Civil
Guangyu Dai, Fei Zhang, Yuke Wang
Summary: This study presents stability analyses of layered soil slopes in unsaturated conditions and determines the factor of safety involving suction stress of unsaturated soil using a limit equilibrium method. The obtained results show that larger suction stress provided in unsaturated clay dominates the stability of the layered slopes, while the location and thickness of the clay layer have significant influences on slope stability.
FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING
(2022)
Article
Engineering, Geological
Thanh Son Nguyen, Suched Likitlersuang, Weeradetch Tanapalungkorn, Trung Nghia Phan, Suraparb Keawsawasvong
Summary: This study expands on the concept of random field copulas by implementing finite element limit analysis (FELA) with adaptive meshing. It examines the effects of copula selection on slope stability and reliability analyses in a geotechnical problem. The results demonstrate that different copula approaches lead to significantly different slope failure probabilities, and that using multiple dependency structures can reduce failure probabilities.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2022)
Article
Metallurgy & Metallurgical Engineering
Jian-Feng Zhou, Zi-yu Zheng, Ting Bao, Bing-Xiong Tu, Jian Yu, Chang-bing Qin
Summary: This study developed a finite-element lower-bound procedure to investigate seismic slope stability in homogeneous and non-homogeneous soils. The seismic slope stability analysis is transformed to a linear programming problem within the framework of lower-bound theory. An interior-point algorithm implemented into MATLAB was adopted to seek optimal lower-bound solutions of slope bearing capacity and safety factor. The proposed procedure was validated and its accuracy was assessed by comparing with different approaches.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Engineering, Multidisciplinary
Muhammad Salman Babar, Jahanzaib Israr, Gang Zhang, Umair Ali
Summary: This study presents a framework for semi-empirical slope stability analysis of the important ongoing Mohmand dam project in Pakistan. The study compared and analyzed the results of finite element and limit equilibrium methods, finding that the former is more conservative, with lower safety factors except for earthquake loading.
COGENT ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Dinesh Kumar Malviya, Manojit Samanta, Rajesh Kumar Dash, Debi Prasanna Kanungo
Summary: Slope instability is a common problem in the Indian Himalayan region due to road widening. This study assesses the stability of natural and cut slopes along a specific highway section in Manipur, India. The factor of safety is evaluated using different methods and mitigation measures are examined. The findings suggest that installing anchors at specific angles and spacing can increase the factor of safety. This study provides valuable information for researchers and practitioners on slope stability assessment and mitigation measures in similar geological conditions in the Indian Himalayan terrain.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Engineering, Civil
Fhatuwani Sengani, Nndanduleni Muavhi, Francois Mulenga
Summary: This paper describes an advanced reliability analysis of road-slope stability in a brittle and faulted rockmass terrain using several techniques, integrating classical methods and advanced simulation tools. The analysis revealed the significant influence of rockmass composition on slope stability and displacement, while identifying brittleness, faulting, slope properties, and unsupported rockmass as major factors contributing to slope instability.
TRANSPORTATION GEOTECHNICS
(2021)
Article
Geosciences, Multidisciplinary
Jian Ji, Zheming Zhang, Zhijun Wu, Jiacheng Xia, Yongxin Wu, Qing Lu
Summary: This paper presents a new computation framework for conducting reliability-based design of underground constructions involving geo-material uncertainties, utilizing a simplified inverse first-order reliability method. The results show that blowout failure of tunnel face is extremely unlikely in sandy soil stratum, while collapse is the only possible failure mode. The coefficient of variation of internal friction angle has a greater influence on the tunnel face failure probability than that of the cohesion in geotechnical uncertainties.
GEOSCIENCE FRONTIERS
(2021)
Article
Computer Science, Interdisciplinary Applications
Samzu Agbaje, Xue Zhang, Darren Ward, Luisa Dhimitri, Edoardo Patelli
Summary: This study investigated the spatial variability characteristics of the effective friction angle of Crag deposits in the east of England. Statistical analysis was conducted on Cone Penetration Test data to derive the distribution characteristic of the effective friction angle, including mean value, standard deviation, and correlation length. The study also examined how factors like groundwater pressures and soft/organic soil zones impact the measurement of autocovariance function and correlation length. The findings were used to conduct semi-deterministic and probabilistic finite element limit analyses on slope stability in Crag deposits, providing insight into the design codes used in practice.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Computer Science, Interdisciplinary Applications
Hongzhi Cui, Jian Ji, Jian Song, Wengui Huang
Summary: This study presents a series of improved stability charts based on limit equilibrium pseudo-static analysis of a wide range of homogeneous slope models. The developed charts provide solutions for estimating the factor of safety with good performance.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Engineering, Civil
Yejia Qiang, Limin Zhang, Te Xiao
JOURNAL OF HYDROLOGY
(2020)
Article
Engineering, Civil
Chen Chen, Limin Zhang, Te Xiao, Jian He
JOURNAL OF HYDROLOGY
(2020)
Article
Computer Science, Interdisciplinary Applications
Zheng Zhou, Dian-Qing Li, Te Xiao, Zi-Jun Cao, Wenqi Du
Summary: This study proposes a response surface-guided adaptive slope reliability analysis method which corrects the preliminary slope stability analysis based on response surface, and explores the failure mechanisms of slope stability in spatially varying soils.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Engineering, Civil
Yejia Qiang, Limin Zhang, Jian He, Te Xiao, Honghao Huang, Haojie Wang
Summary: This study evaluates flood hazards in coastal cities, considering interactions of factors like rainfall, sea level rise, and storm surges. By proposing an equivalent drainage method, the research provides insights for urban drainage design and flood prevention strategies under various weather conditions.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Environmental
Te Xiao, Hai-Feng Zou, Ke-Sheng Yin, Yu Du, Li-Min Zhang
Summary: Integrating borehole and CPTU data using a coupled machine learning method under a Bayesian framework can achieve more reliable soil classification and property evaluation. Applied to the marine site characterization of the Hong Kong-Zhuhai-Macao Bridge, this approach successfully detects soil seams, resulting in a more reliable soil profile and interpretation of compatible soil properties with engineering practice.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Geological
Te Xiao, Li Min Zhang, Raymond Wai Man Cheung, Suzanne Lacasse
Summary: The study developed a spatio-temporal landslide forecasting model using machine learning to predict the risk of slope failures in man-made slopes. The model can accurately predict the probability, scale, and spatial distribution of landslides in real-time, making it an essential tool for advanced landslide risk assessment and early warning.
Article
Water Resources
Yejia Qiang, Jian He, Te Xiao, Wenjun Lu, Jinhui Li, Limin Zhang
Summary: This study aims to develop a flood analysis model to integrate multiple flooding triggers and investigate coastal flood hazards at the street scale in urban areas. The research shows the key role of drainage facilities in mitigating flooding induced by wave overtopping, and the effectiveness of a 1.1 m wave wall in reducing overtopping discharge, flooding severity, and dangerous zones for pedestrians.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2021)
Article
Engineering, Geological
Lu-Yu Ju, Te Xiao, Jian He, Hao-Jie Wang, Li-Min Zhang
Summary: This study proposes a terrain matching-targeted machine learning model for predicting landslide runout paths. By considering the geographic characteristics along the paths and incorporating three-dimensional terrain reality into model training, the proposed model significantly outperforms conventional statistical models in terms of prediction accuracy. Moreover, the model can help identify high-risk urban areas, providing guidelines for designing landslide prevention and mitigation measures.
ENGINEERING GEOLOGY
(2022)
Article
Engineering, Geological
Lu-Yu Ju, Li-Min Zhang, Te Xiao
Summary: Landslide volume is closely associated with landslide mobility and damage, but direct measurement on-site is challenging. This study uses high-resolution LiDAR-derived digital terrain models to interpret the volumes of 1326 shallow landslides in Hong Kong. New models are proposed to estimate the volumes of small-scale shallow landslides accurately, enhancing landslide risk assessment and management.
ENGINEERING GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Cong Miao, Zi-Jun Cao, Te Xiao, Dian-Qing Li, Wenqi Du
Summary: This paper proposes a novel Bayesian framework called BayLUP, which accounts for the spatial variability, statistical uncertainty, and model error of liquefaction-induced settlement in a quantifiable and rational way. The framework provides reasonable spatial interpolation results based on a limited number of testing data and prior knowledge. Ignoring the statistical uncertainty and model error may lead to underestimation of prediction uncertainty.
Article
Computer Science, Interdisciplinary Applications
K. S. Yin, T. Xiao, H. Y. Luo, H. F. Zou, L. M. Zhang
Summary: Deep cement mixing (DCM) is an effective ground improvement technique that involves injecting dry cement or cement slurry into the ground. This study focuses on the spatial variation of unconfined compressive strength (UCS) in DCM clusters in a marine clay area. Variograms and random field modeling were used to analyze the spatial variability and autocorrelation structure of UCS data. The study compares the spatial magnitude, uniformity, and variability of site-wide UCS before and after the construction of DCM clusters.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Geological
Te Xiao, Li -Min Zhang
Summary: This study systematically compares the performances of three categories of data-driven methods for landslide prediction and proposes a novel machine learning model that can accurately predict the spatio-temporal evolution of rain-induced landslides. The model is validated against the landslide incidents in Hong Kong in the past 35 years and outperforms other data-driven models in both prediction ability and accuracy.
ENGINEERING GEOLOGY
(2023)
Article
Engineering, Geological
Jian He, Limin Zhang, Te Xiao, Haojie Wang, Hongyu Luo
Summary: In a changing climate, extreme rainstorms become more frequent and intense, causing thousands of landslides and leading to the loss of hundreds of lives. The current landslide emergency management lacks key information on likely consequences, thus this study presents a novel prompt quantitative risk assessment method. The proposed method accurately predicts the number of affected buildings and potential fatalities, contributing to the advancement of landslide emergency management from hazard-informed to risk-informed.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jian He, Limin Zhang, Te Xiao, Haojie Wang, Hongyu Luo
Summary: This paper proposes a deep learning-enabled super-resolution hydrodynamic flood analysis method to simulate real-time pluvial flooding process. The method produces high-resolution flow depth and velocity predictions, providing comprehensive information for flood emergency management.
Proceedings Paper
Computer Science, Interdisciplinary Applications
Qiuzhu Ma, Haifeng Zou, Te Xiao, Limin Zhang
Summary: This study combines Bayesian machine learning with CPTU data and utilizes a soil classification chart for noise filtering. It can accurately identify and separate noisy data, and effectively capture soil stratification variations.
GEO-RISK 2023: ADVANCES IN MODELING UNCERTAINTY AND VARIABILITY
(2023)
Article
Engineering, Multidisciplinary
A. A. Aganin, A. I. Davletshin
Summary: A mathematical model of interaction of weakly non-spherical gas bubbles in liquid is proposed in this paper. The model equations are more accurate and compact compared to existing analogs. Five problems are considered for validation, and the results show good agreement with experimental data and numerical solutions. The model is also used to analyze the behavior of bubbles in different clusters, providing meaningful insights.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Hao Wu, Jie Sun, Wen Peng, Lei Jin, Dianhua Zhang
Summary: This study establishes an analytical model for the coupling of temperature, deformation, and residual stress to explore the mechanism of residual stress formation in hot-rolled strip and how to control it. The accuracy of the model is verified by comparing it with a finite element model, and a method to calculate the critical exit crown ratio to maintain strip flatness is proposed.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Shengwen Tu, Naoki Morita, Tsutomu Fukui, Kazuki Shibanuma
Summary: This study aimed to extend the finite element method to cope with elastic-plastic problems by introducing the s-version FEM. The s-version FEM, which overlays a set of local mesh with fine element size on the conventional FE mesh, simplifies domain discretisation and provides accurate numerical predictions. Previous applications of the s-version FEM were limited to elastic problems, lacking instructions for stress update in plasticity. This study presents detailed instructions and formulations for addressing plasticity problems with the s-version FEM and analyzes a stress concentration problem with linear/nonlinear material properties.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Bo Fan, Zhongmin Wang
Summary: A 3D rotating hyperelastic composite REF model was proposed to analyze the influence of tread structure and rotating angular speed on the vibration characteristics of radial tire. Nonlinear dynamic differential equations and modal equations were established to study the effects of internal pressure, tread pressure sharing ratio, belt structure, and rotating angular speed on the vibration characteristics.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
X. W. Chen, Z. Q. Yue, Wendal Victor Yue
Summary: This paper examines the axisymmetric problem of a flat mixed-mode annular crack near and parallel to an arbitrarily graded interface in functionally graded materials (FGMs). The crack is modeled as plane circular dislocation loop and an efficient solution for dislocation in FGMs is used to calculate the stress field at the crack plane. The analytical solutions of the stress intensity factors are obtained and numerical study is conducted to investigate the fracture mechanics of annular crack in FGMs.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Xumin Guo, Jianfei Gu, Hui Li, Kaihua Sun, Xin Wang, Bingjie Zhang, Rangwei Zhang, Dongwu Gao, Junzhe Lin, Bo Wang, Zhong Luo, Wei Sun, Hui Ma
Summary: In this study, a novel approach combining the transfer matrix method and lumped parameter method is proposed to analyze the vibration response of aero-engine pipelines under base harmonic and random excitations. The characteristics of the pipelines are investigated through simulation and experiments, validating the effectiveness of the proposed method.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Xiangyu Sha, Aizhong Lu, Ning Zhang
Summary: This paper investigates the stress and displacement of a layered soil with a fractional-order viscoelastic model under time-varying loads. The correctness of the solutions is validated using numerical methods and comparison with existing literature. The research findings are of significant importance for exploring soil behavior and its engineering applications under time-varying loads.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Thuy Dong Dang, Thi Kieu My Do, Minh Duc Vu, Ngoc Ly Le, Tho Hung Vu, Hoai Nam Vu
Summary: This paper investigates the nonlinear torsional buckling of corrugated core sandwich toroidal shell segments with functionally graded graphene-reinforced composite (FG-GRC) laminated coatings in temperature change using the Ritz energy method. The results show the significant beneficial effects of FG-GRC laminated coatings and corrugated core on the nonlinear buckling responses of structures.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Zhihao Zhai, Chengbiao Cai, Qinglai Zhang, Shengyang Zhu
Summary: This paper investigates the effect of localized cracks induced by environmental factors on the dynamic performance and service life of ballastless track in high-speed railways. A mathematical approach for forced vibrations of Mindlin plates with a side crack is derived and implemented into a train-track coupled dynamic system. The accuracy of this approach is verified by comparing with simulation and experimental results, and the dynamic behavior of the side crack under different conditions is analyzed.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
James Vidler, Andrei Kotousov, Ching-Tai Ng
Summary: The far-field methodology, developed by J.C. Maxwell, is utilized to estimate the effective third order elastic constants of composite media containing random distribution of spherical particles. The results agree with previous studies and can be applied to homogenization problems in other fields.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Kim Q. Tran, Tien-Dat Hoang, Jaehong Lee, H. Nguyen-Xuan
Summary: This study presents novel frameworks for graphene platelets reinforced functionally graded triply periodic minimal surface (GPLR-FG-TPMS) plates and investigates their performance through static and free vibration analyses. The results show that the mass density framework has potential for comparing different porous cores and provides a low weight and high stiffness-to-weight ratio. Primitive plates exhibit superior performance among thick plates.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Bence Hauck, Andras Szekrenyes
Summary: This study explores several methods for computing the J-integral in laminated composite plate structures with delamination. It introduces two special types of plate finite elements and a numerical algorithm. The study presents compact formulations for calculating the J-integral and applies matrix multiplication to take advantage of plate transition elements. The models and algorithms are applied to case studies and compared with analytical and previously used finite element solutions.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Wu Ce Xing, Jiaxing Wang, Yan Qing Wang
Summary: This paper proposes an effective mathematical model for bolted flange joints to study their vibration characteristics. By modeling the flange and bolted joints, governing equations are derived. Experimental studies confirm that the model can accurately predict the vibration characteristics of multiple-plate structures.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Pingchao Yu, Li Hou, Ke Jiang, Zihan Jiang, Xuanjun Tao
Summary: This paper investigates the imbalance problem in rotating machinery and finds that mass imbalance can induce lateral-torsional coupling vibration. By developing a model and conducting detailed analysis, it is discovered that mass imbalance leads to nonlinear time-varying characteristics and there is no steady-state torsional vibration in small unbalanced rotors. Under largely unbalanced conditions, both resonant and unstable behavior can be observed, and increasing lateral damping can suppress instability and reduce lateral amplitude in the resonance region.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Engineering, Multidisciplinary
Yong Cao, Ziwen Guo, Yilin Qu
Summary: This paper investigates the mechanically induced electric potential and charge redistribution in a piezoelectric semiconductor cylindrical shell. The results show that doping levels can affect the electric potentials and mechanical displacements, and alter the peak position of the zeroth-order electric potential. The doping level also has an inhibiting effect on the first natural frequency. These findings are crucial for optimizing the design and performance of cylindrical shell-shaped sensors and energy harvesters.
APPLIED MATHEMATICAL MODELLING
(2024)