Article
Metallurgy & Metallurgical Engineering
Seyed Ali Ghaffari, Elham Sattari, Amir Hamidi, Gholamhosein Tavakoli Mehrjardi, Abtin Farshi Homayoun Rooz
Summary: The study reveals that using geotextile reinforcement layers and reducing the apex angle can significantly increase the ultimate bearing capacity of foundations near slopes. The farther the foundation is from the slope, the less adverse effect the slope has on the foundation; as the distance decreases, the effects of reinforcement and apex angle increase.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Engineering, Multidisciplinary
Magdi El-Emam, Youcef El Berizi, Ahmed B. Mabrouk, Sami W. Tabsh
Summary: A parametric study was conducted using the finite element method to investigate the bearing capacity and failure mechanisms of strip footings on cohesionless soil slopes. The study quantified the variations in bearing capacity caused by different design parameters, footing dimensions, and soil properties. A multilinear equation was developed to predict the bearing capacity of the footing on the top of a slope, which showed reasonable accuracy.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Engineering, Marine
Zhao-gang Luo, Xuan-ming Ding, Qiang Ou, Hua-qiang Fang
Summary: This study investigates the bearing capacity and deformation behavior of a rigid strip footing on coral sand slopes using model-scale tests. The results show that geogrid reinforcement significantly improves the bearing capacity of coral sand slopes. The bearing capacity increases with the increasing edge distance and the decreasing slope height and angle.
Article
Engineering, Civil
Gaoqiao Wu, Minghua Zhao, Heng Zhao
Summary: This study investigated the undrained seismic bearing capacity of strip footings embedded in two-layered slopes using finite element limit analysis. Results indicated that seismic bearing capacity increases with the growth of horizontal embedment depth of footings.
EARTHQUAKE SPECTRA
(2021)
Article
Engineering, Geological
Gaoqiao Wu, Heng Zhao, Minghua Zhao, Linli Duan
Summary: This study used a self-developed finite element limit analysis code to investigate the stability of eccentrically loaded strip footings on rock slopes. The research focused on quantifying the inequality phenomenon caused by the slope and eccentric loads in different directions. The program embedded the generalized Hoek-Brown yield criterion to simulate rock nonlinearity and employed upper bound theorem, lower bound theorem, and adaptive meshing technique for more reliable calculations. The study presented stability charts to illustrate the influences of various influential factors on the footing bearing capacity and analyzed the transformation trends of failure patterns for deeper insight into failure mechanisms.
Article
Engineering, Civil
Shuvankar Das, Koushik Halder, Debarghya Chakraborty
Summary: This study analyzes the ultimate bearing capacity of an embedded strip footing on a rock slope subjected to seismic loading, showing that the magnitude of the bearing capacity factor decreases significantly with an increment in seismic loading, further decreasing with an increment in slope angle, and increasing with an increment in embedment depth. Stress contours are used to describe the combined failure mechanism of the footing-rock slope system under different embedment depths and types of loading.
GEOMECHANICS AND ENGINEERING
(2022)
Article
Engineering, Civil
Rui Zhang, Zukai Liu, Jing Pei Yang, Bingjun Shu, Shixuan Cui, Jiaan He, Yao Xiao
Summary: The study investigates the bearing capacity of strip footings near rock slopes under pseudo-static horizontal earthquake forces using the upper bound finite element limit analysis combined with a mesh adaptive strategy. The generalized Hoek-Brown failure criterion is applied to describe the strength properties of rock masses. By considering different governing parameters, the seismic bearing capacity factor is determined and non-dimensional charts for design purposes are provided.
JOURNAL OF EARTHQUAKE ENGINEERING
(2023)
Article
Engineering, Geological
K. Kazemi, M. R. Arvin, N. Hataf, A. Khademhosseini
Summary: This study examines the behavior of square footings on geocell-reinforced sand slopes. The results show that geocell reinforcement is more effective when the distance between the footing and the edge of the slope is smaller. The optimal depth of placement of the geocell layer is independent of the length of the geocell. Additionally, a greater vertical distance between the top and lower geocell layers leads to a decrease in the performance of the footings, and the width of the geocell has marginal impact on the behavior of the tested models.
GEOSYNTHETICS INTERNATIONAL
(2022)
Article
Engineering, Geological
Zhiwei Gao, Jidong Zhao, Xin Li
Summary: The study indicates that neglecting the anisotropic behavior of sand may lead to overestimated bearing capacity and under-design of foundations, while the anisotropic behavior of sand can affect both the bearing capacity of foundations and the failure mechanism of supporting slopes.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2021)
Article
Engineering, Environmental
Tian-Cheng Xie, Hong-Hu Zhu, Chun-Xin Zhang, Wei Zhang
Summary: The material point method (MPM) is used to analyze the failure mechanism of the footing-on-slope system and validate its reliability in predicting bearing capacity and identifying failure modes. The study shows that an increase in setback distance, cohesion, and friction angle linearly increases bearing capacity, while bearing capacity decreases with increasing slope angle. Four distinct failure modes of the footing-on-slope system are identified based on setback distance and slope angle, and empirical relationships are established for predicting the reduction factor of bearing capacity.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Computer Science, Interdisciplinary Applications
Sumanta Roy, Manash Chakraborty
Summary: In this study, the upper bound collapse load of shallow strip foundations was evaluated considering the unsaturated state of the soil. The vadose zone effect was considered using a suction-stress based effective stress approach. The soil suction was modelled using van-Genuchten's soil water characteristics curve and Gardner's hydraulic conductivity function. A Hill-type mechanism was considered to ensure kinematic admissibility, and a new bearing capacity factor was introduced to account for unsaturated soil properties and climate changes. The obtained results were in good agreement with available solutions.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Construction & Building Technology
Divesh Ranjan Kumar, Pijush Samui, Warit Wipulanusat, Suraparb Keawsawasvong, Kongtawan Sangjinda, Wittaya Jitchaijaroen
Summary: Various machine learning algorithms were proposed to estimate the seismic bearing capacity factor (N-c) of strip footings on sloping ground. A total of 1296 samples were used to train and test the models, and sensitivity analysis was performed on all input parameters. Performance parameters were calculated to assess the models' performance, and the MPMR model achieved the highest R-2 values and the lowest RMSE values in both training and testing phases.
Article
Polymer Science
Juan Hou, Sitong Liu, Boohyun Nam, Yanxia Ma
Summary: A series of model tests were conducted to investigate the bearing capacity and reinforced mechanism of a horizontal-vertical (H-V) geogrid-reinforced foundation. The optimal parameters of the H-V geogrid, including length, vertical geogrid height, depth of the top layer, and number of layers, were determined through experiments. The results showed that the H-V geogrid significantly improved the bearing capacity, with a 1.7 times increase compared to conventional geogrid. It also reduced the maximum top subsidence by 13.63% and increased the bearing capacity ratio by 75.28% compared to a single-layer H-V geogrid-reinforced foundation.
Article
Engineering, Geological
Peng Xu, Ting Li, Kianoosh Hatami, Guangqing Yang, Xunmei Liang
Summary: This paper presents a numerical study on the load-bearing performance of reinforced slopes under footing load. The results show that the soil dilation angle, footing location, and reinforcement design significantly influence the load-bearing performance, and the FELA method can effectively predict the magnitudes of bearing capacity, slope deformation, and mobilized reinforcement load.
GEOTEXTILES AND GEOMEMBRANES
(2022)
Article
Construction & Building Technology
Haidar Hosamo, Iyad Sliteen, Songxiong Ding
Summary: This paper investigates the bearing capacity of a ring footing on geogrid reinforced sand through numerical analysis using FLAC3D 7.0. The study found that an intersection zone was developed in soil under the inner side of the ring footing, contributing to its bearing capacity. It was also observed that the bearing capacity of the ring footing could significantly increase if a single-layer or double-layer geogrid was laid at a proper depth.
Article
Engineering, Geological
K. S. Gill, A. K. Choudhary, J. N. Jha, S. K. Shukla
GEOSYNTHETICS INTERNATIONAL
(2013)
Article
Engineering, Geological
A. K. Choudhary, B. Pandit, G. L. Sivakumar Babu
GEOSYNTHETICS INTERNATIONAL
(2019)
Article
Engineering, Geological
A. K. Choudhary, S. K. Dash
Summary: The study found that geocell reinforcement can significantly improve the performance of vertical plate anchors at different soil densities, with increased soil density leading to an increase in load bearing capacity and stiffness of the anchor bed. Furthermore, the increase in anchor capacity due to higher soil density is more pronounced with geocell reinforcement compared to unreinforced cases.
GEOSYNTHETICS INTERNATIONAL
(2021)
Article
Engineering, Geological
Sougata Mukherjee, Lucky Kumar, Awdhesh Kumar Choudhary, G. L. Sivakumar Babu
Summary: The study investigated the pullout capacity of inclined plate anchors in dry sand through laboratory experiments and numerical modeling. Results showed that the presence of geogrid reinforcement significantly improved the capacity of inclined anchors, with pullout capacity increasing with inclination angle and anchor plate embedment depth. The numerical model developed in FLAC3D demonstrated good agreement with experimental results, predicting the behavior of inclined anchors in both unreinforced and reinforced soil. Furthermore, a design example comparing uplift resistance of pile and anchor foundations indicated that inclined anchors embedded in reinforced soil can resist uplift forces at shallow depths compared to piles.
GEOTEXTILES AND GEOMEMBRANES
(2021)
Article
Engineering, Geological
Awdhesh Kumar Choudhary, Sujit Kumar Dash
Summary: This paper investigates the failure mechanism of geocell-reinforced vertical anchors in sand. The load-carrying capacity of the anchors significantly increases with geocell reinforcement, primarily due to the rupture behavior of the reinforced anchor beds. The size of rupture surfaces is influenced by the dimensions of the geocell mattress, with smaller sizes leading to effective soil confinement.
INTERNATIONAL JOURNAL OF PHYSICAL MODELLING IN GEOTECHNICS
(2023)
Article
Engineering, Multidisciplinary
Sufyan Ghani, Sunita Kumari, A. K. Choudhary, Anibrata Chatterjee
Summary: The study indicates that using human hair fibers and fly ash in soil stabilization can effectively increase the strength and deformation characteristics of the soil, making it not only environmentally beneficial but also cost-effective.
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
(2022)
Article
Engineering, Civil
Sufyan Ghani, Sunita Kumari, A. K. Choudhary, J. N. Jha
Summary: The study investigated the strength and deformation characteristics of ferrochrome slag reinforced with single prestressed geotextile layer through model load tests. It proposed sustainable solutions for industrial waste and found that prestressing of reinforcements is more effective than simple reinforcement in reducing settlement. Artificial neural network and ELM were suggested for settlement prediction, with computational models proving efficient and effective for preliminary assessments.
INNOVATIVE INFRASTRUCTURE SOLUTIONS
(2021)
Article
Engineering, Geological
Awdhesh Kumar Choudhary, Bhardwaj Pandit, G. L. Sivakumar Babu
GEOMECHANICS AND GEOENGINEERING-AN INTERNATIONAL JOURNAL
(2020)
Proceedings Paper
Engineering, Civil
J. N. Jha, S. K. Shukla, A. K. Choudhary, K. S. Gill, B. P. Verma
ADVANCES IN REINFORCED SOIL STRUCTURES
(2018)
Article
Engineering, Geological
J. N. Jha, A. K. Choudhary, K. S. Gill, S. K. Shukla
INDIAN GEOTECHNICAL JOURNAL
(2013)
Article
Engineering, Geological
J. N. Jha, A. K. Choudhary, K. S. Gill, S. K. Shukla
INTERNATIONAL JOURNAL OF GEOTECHNICAL ENGINEERING
(2014)
Article
Engineering, Geological
K. S. Gill, A. K. Choudhary, J. N. Jha, S. K. Shukla
INTERNATIONAL JOURNAL OF GEOTECHNICAL ENGINEERING
(2013)
