Article
Engineering, Geological
Reza Jamshidi Chenari, Richard J. Bathurst
Summary: This paper investigates the influence of time-and strain-dependent reduction in reinforcement stiffness on the bearing capacity and load-settlement response of a footing seated on a thin reinforced granular fill layer over undrained soft clay foundations using finite-difference method (FDM) numerical models. The study shows that the time-and strain-dependent stiffness of the reinforcement significantly affects the bearing capacity and load-settlement response of the reinforced granular base scenario. An analytical solution for the ultimate bearing capacity of strip footings seated on thin unreinforced and reinforced granular layers over undrained clay is proposed, along with the calculation of bearing capacity factors to be used with the analytical solution.
GEOTEXTILES AND GEOMEMBRANES
(2023)
Article
Environmental Sciences
Bilal Ahmad Malik, Mohammad Yousuf Shah, Vishwas A. Sawant
Summary: The experimental study on micropiles placed in sand around a square footing showed that micropiles can significantly improve the load-bearing capacity and settlement characteristics of the footing. The slenderness ratio of micropiles has a significant impact on the load-carrying capacity, but the effect becomes insignificant beyond a certain value.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Civil
Ahmet Demir, Bahadir Ok, Talha Sarici
Summary: This study aims to explain the performance of granular fill layers in pavement systems using cyclic plate load tests. Four tests were carried out to evaluate the effects of the fill layer thickness on the pavement's permanent deformation, and an analytical solution was developed for the fill layer thickness using the test results.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2023)
Article
Engineering, Civil
Subinay Saha Roy, Kousik Deb
Summary: A mathematical model is used to study the effect of aspect ratio of footings on settlement response of unreinforced or geosynthetic-reinforced granular fill-soft soil system. The study shows that aspect ratio has a significant effect on settlement response and mobilised tension in the geosynthetic layer. The effectiveness of the reinforcement decreases with an increase in aspect ratio. Settlement decreases with an increase in ultimate bearing capacity of soft soil or shear modulus of granular fill, but the rate of reduction of settlement decreases as the aspect ratio increases.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Environmental Sciences
Bilal Ahmad Malik, Mohammad Yousuf Shah, Vishwas A. Sawant
Summary: Micropiles can be used to improve various types of foundation structures, with the study showing that the inclination of micropiles has a significant impact on horizontal load, while changes in diameter and spacing also affect bearing capacity. Under specific parameter values, micropiles can greatly enhance the overall load-bearing capacity of a structure.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
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
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, Geological
L. L. R. Zipoli, J. O. Avesani Neto
Summary: This paper presents a field-scale experimental track over a poor subgrade with an unreinforced section and a geocell-reinforced section. The results showed that the thickness of the unbound granular material (UGM) layer has a significant influence on its elastic modulus, and the geocell reinforcement plays an important role in improving the modulus of UGM.
GEOTEXTILES AND GEOMEMBRANES
(2022)
Article
Engineering, Geological
S. N. Moghaddas Tafreshi, A. Rafiezadeh Malekshah, M. Rahimi, A. R. Dawson
Summary: This study proposes the reuse of post-consumer PET bottles filled with soil as a novel soil reinforcing element. The laboratory-scale experimental investigation showed that this method can significantly enhance the bearing capacity of soil and reduce soil settlement, making it a promising alternative to conventional methods.
GEOSYNTHETICS INTERNATIONAL
(2022)
Article
Computer Science, Interdisciplinary Applications
K. Krishnan, Debarghya Chakraborty
Summary: This paper investigates the importance of inherent variability of soil under strip footing subjected to combined effect of inclined and eccentric loads using probabilistic analysis. The study demonstrates that combined loading and spatial variability of the soil have an impact on the bearing capacity of the footing. While the mean bearing capacity factor is higher than the deterministic value for higher vertical correlation distances, the probability of failure of the footing exceeds 50%, indicating the need for probabilistic analysis.
COMPUTERS AND GEOTECHNICS
(2022)
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
Engineering, Civil
Yang Hao, Manuel George, Rajeshkumar Selvaraj, Kundan Meshram, Amal M. Al-Mohaimeed, Rey Y. Capangpangan, Arnold C. Alguno, Mohammed Al-Bahrani
Summary: This study investigates the bending and dynamic buckling analysis of graphene reinforced CFRP composite plates. Experimental and numerical analyses are conducted to explore the influence of graphene weight percentage, aspect ratios, and end conditions on the performance of the composite plates.
Article
Computer Science, Interdisciplinary Applications
Wensheng Liu, Hossein Moayedi, Hoang Nguyen, Zongjie Lyu, Dieu Tien Bui
Summary: This study utilized artificial neural networks and two metaheuristic algorithms to optimize the prediction of shallow circular footing's bearing capacity. It demonstrated higher reliability in estimating load-bearing capacity using the SHO-MLP hybrid model.
ENGINEERING WITH COMPUTERS
(2021)
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, Geological
Hadi Haghgouei, Ali Reza Kargar, Mehdi Amini, Mohammad Hossein Khosravi
Summary: The study evaluates stress distribution within a slope due to the placement of a footing on the upper surface, and computes the minimum vertical load required to destabilize the slope. Various factors such as soil properties, footing width and location, and slope geometry are taken into consideration in the analysis, with results showing good agreement with existing literature. This proposed method offers a more comprehensive approach to verify FEM models or conduct parametric studies on the bearing capacity of footings near slopes.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2021)
Article
Engineering, Geological
S. Saha Roy, K. Deb
GEOSYNTHETICS INTERNATIONAL
(2017)
Article
Engineering, Geological
S. Saha Roy, K. Deb
GEOSYNTHETICS INTERNATIONAL
(2018)
Article
Engineering, Geological
Subinay Saha Roy, Kousik Deb
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2019)
Article
Engineering, Civil
Subinay Saha Roy, Kousik Deb
Summary: A mathematical model is used to study the effect of aspect ratio of footings on settlement response of unreinforced or geosynthetic-reinforced granular fill-soft soil system. The study shows that aspect ratio has a significant effect on settlement response and mobilised tension in the geosynthetic layer. The effectiveness of the reinforcement decreases with an increase in aspect ratio. Settlement decreases with an increase in ultimate bearing capacity of soft soil or shear modulus of granular fill, but the rate of reduction of settlement decreases as the aspect ratio increases.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Engineering, Geological
Subinay Saha Roy, Kousik Deb
GEOTEXTILES AND GEOMEMBRANES
(2020)
Article
Engineering, Geological
Subinay Saha Roy, Kousik Deb
Summary: This paper determines the modulus of subgrade reaction for sand-clay layered soil under vertical loading through a series of model-scale plate load tests, investigating parameters such as sand layer thickness, plate shape, number of reinforcement layers, and interference effect of closely spaced plates. The study shows that sand thickness significantly affects the subgrade reaction modulus, while the aspect ratio and width of the plate also play a role in influencing the modulus.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2021)