Article
Engineering, Civil
Ramesh Gedela, Swetha Kalla, Nithin Sudarsanan, Rajagopal Karpurapu
Summary: This study investigates the pressure distribution below geocell reinforced foundation beds using non-contact Digital Image Correlation technique. The results indicate that geocells disperse the load over a wide area of the foundation soil, and the dispersion angle depends on the height and surface roughness of the geocell.
TRANSPORTATION GEOTECHNICS
(2021)
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
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
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, 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
Ali Reza Ghanizadeh, Afshin Ghanizadeh, Panagiotis G. Asteris, Pouyan Fakharian, Danial Jahed Armaghani
Summary: Estimating the ultimate bearing capacity of a geogrid-reinforced sandy bed on vertical stone columns in soft clay is challenging due to the complex geometry and lack of knowledge about the parameters that affect it. Developing an accurate prediction model can be beneficial in practical applications. This study developed a model using MARS and EBS algorithms, with 219 experimental samples, and found that the undrained shear strength of unreinforced clay is the most essential input parameter for assessing bearing capacity.
TRANSPORTATION 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
Engineering, Marine
Junhwan Choi, Beom-Seon Jang, Hanbaek Ju, Sungkon Han
Summary: The foundation model of offshore structures significantly influences the vibration mode and structural behavior of leg structures. Consideration should be given to multi-layered soils and soft-over-stiff clay situations when analyzing foundation models.
Article
Engineering, Geological
Masoud Rabeti Moghadam, Jahanpour Monfared, Mansour Parvizi
Summary: This study optimized the layout of geogrid layers using a numerical method to improve the bearing capacity of strip footings under different loading conditions. The results demonstrated that the optimal arrangement and number of reinforcing layers significantly increase the ultimate bearing capacity of the footing, especially under V and VM loading conditions.
ACTA GEOTECHNICA SLOVENICA
(2021)
Article
Engineering, Geological
Hussein Ahmad, Ahmad Mahboubi, Ali Noorzad, Hosein Hoseini Mohammad
Summary: This paper presents an experimental study on the effects of different methods of strengthening strip footings on the stability and useful life of the foundations on fine sandy soils. Folded geogrid reinforcement performed better than planar geogrid reinforcement, and a critical region was identified that led to increased settlement. Increasing the number of folded geogrid layers significantly reduced settlement rate. Wrapping the reinforced cases around surrounding frames improved bearing capacity and reduced settlement.
ROCK AND SOIL MECHANICS
(2022)
Article
Engineering, Ocean
Pan Gao, Zhihui Liu, Danda Shi, Fei Wang
Summary: This paper reports a successful engineering case of perforating a sand layer and investigates its mechanism and mitigation effect through numerical simulations. The study shows that perforation can weaken the surrounding sand and mitigate the settlement potential in sand-over-clay stratum. The depth and position of the borehole also affect the mitigation efficiency.
APPLIED OCEAN RESEARCH
(2022)
Article
Engineering, Civil
Rakesh Kumar Dutta, Vishwas Nandkishor Khatri, Duha Nissar Hamdani
Summary: This study uses finite element analysis to determine the ultimate bearing capacity of unskirted/skirted ring footing under concentric, vertical loads. The results show that circular footing has the largest bearing capacity, while the bearing capacity of ring footing varies with different thickness ratios and skirt types. Additionally, providing skirts for the ring footing can effectively reduce soil heave.
INNOVATIVE INFRASTRUCTURE SOLUTIONS
(2022)
Article
Engineering, Marine
Yunliang Cui, Fangtao Zhong, Changguang Qi, Xukun Yang, Xuanyuan Gao
Summary: A vertical electro-osmosis method was proposed to improve the bearing capacity of piles in marine soft clay foundations. The effects of vertical electro-osmosis on the shear strength of soil and the bearing capacity of the pile were studied through various experiments. The results showed that vertical electro-osmosis can significantly improve the bearing capacity of the pile and the shear strength of soil around the pile.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Hussam Aldeen J. Hassan, Ressol R. Shakir
Summary: A study was conducted to test a square footing model with an eccentric load in geogrid-reinforced clay. The geogrid improved the bearing capacity of the soil significantly for both centrical and eccentrical loads, with an increase of 2.27 and 2.12 times, respectively.
JOURNAL OF THE MECHANICAL BEHAVIOR OF MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Bin Wang, Ming-Hui Yuan, Liang Li, Chang-Feng Yuan, Ying Li, Kan-Min Shen
Summary: This study investigated the bearing capacity of suction bucket foundations with soft clay soil strata. It was found that increasing the length-diameter ratio of the foundation enhanced its bearing capacity. For foundations with a length-diameter ratio less than 1.0, the influence of soil non-uniformity on the bearing capacity was more significant. The weakest bearing capacity of the suction bucket foundation was observed when the wind and wave loads were at a direction of 15 degrees. Under cyclic loads, the soil strength weakened rapidly in the initial stage but slowed down in the latter stage.
Article
Engineering, Geological
Hasthi Venkateswarlu, K. N. Ujjawal, A. Hegde
GEOTEXTILES AND GEOMEMBRANES
(2018)
Article
Engineering, Geological
K. N. Ujjawal, H. Venkateswarlu, A. Hegde
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2019)
Article
Engineering, Geological
Seyed Naser Moghaddas Tafreshi, Reza Zakeri, Andrew Robert Dawson, Amarnath Hegde
Summary: This study evaluates the use of a rubber sheet as an isolation material to protect nearby lightweight equipment from vibration sources. The results show that isolating the vibration source can lower the resonant frequency and reduce the vertical amplitude.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2022)
Article
Engineering, Geological
S. Sarkar, A. Hegde
Summary: The utilization of industrial and construction wastes is important for sustainable development. In this study, the geotechnical applications of steel slag and construction and demolition wastes (CDW) were investigated. Static triaxial tests were conducted on unreinforced and geogrid reinforced samples, and the performance of the materials was compared to conventional fill material sand. The results showed that slag had the highest shear strength, while CDW sustained larger strain at failure. The inclusion of geogrid significantly improved the mechanical properties of the materials.
INTERNATIONAL JOURNAL OF GEOSYNTHETICS AND GROUND ENGINEERING
(2022)
Article
Engineering, Civil
Tirtha Sathi Bandyopadhyay, Pradipta Chakrabortty, A. Hegde
Summary: This paper presents the dynamic behavior of mechanically stabilized earth (MSE) walls with different reinforcement and backfill conditions. The study reveals that geogrid reinforcement can reduce acceleration amplification and performs well in wet backfill conditions.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2023)
Article
Engineering, Civil
Tirtha Sathi Bandyopadhyay, Pradipta Chakrabortty, A. Hegde
Summary: The interaction mechanism between geogrid reinforcement and crumb rubber-sand mixtures was investigated through pullout experiments. The results showed that a mixture of 30% rubber and sand was the most suitable for mechanically stabilized earth walls. Additionally, a prediction equation for the pullout strength of the geogrid was developed through multi-variable regression analysis.
INNOVATIVE INFRASTRUCTURE SOLUTIONS
(2023)
Article
Engineering, Geological
A. Hegde, Abhishek Anand
Summary: This study develops correlations between resistivity, SPT-N, and shear wave velocity for soil in the Patna region of India. The results show a strong linear correlation between resistivity and SPT-N, and a relatively weak linear correlation between resistivity and shear wave velocity. The developed correlations allow for quick determination of soil design parameters solely through electrical resistivity tests, saving time and effort compared to conventional tests.
INDIAN GEOTECHNICAL JOURNAL
(2022)
Article
Engineering, Geological
T. G. Sitharam, Amarnath M. Hegde
INTERNATIONAL JOURNAL OF GEOTECHNICAL EARTHQUAKE ENGINEERING
(2019)
Article
Engineering, Civil
A. Hegde, Tanmoy Das
INNOVATIVE INFRASTRUCTURE SOLUTIONS
(2019)
Article
Engineering, Geological
H. Venkateswarlu, A. Hegde
GEOTECHNICAL ENGINEERING
(2018)
Article
Engineering, Geological
A. Hegde, R. Roy
INTERNATIONAL JOURNAL OF GEOSYNTHETICS AND GROUND ENGINEERING
(2018)
Review
Construction & Building Technology
A. Hegde
CONSTRUCTION AND BUILDING MATERIALS
(2017)
Article
Engineering, Geological
T. G. Sitharam, A. Hegde
INTERNATIONAL JOURNAL OF GEOTECHNICAL ENGINEERING
(2017)
Article
Engineering, Civil
A. Hegde, T. G. Sitharam
TRANSPORTATION GEOTECHNICS
(2017)
Article
Engineering, Civil
A. Hegde, T. G. Sitharam
GEOMECHANICS AND ENGINEERING
(2016)