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
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
Majid Yazdandoust, Atanaz Bahrami Balfeh Taimouri
Summary: This study investigates the performance of two-tiered mechanically stabilized earth walls (T-TMSEWs) under static footing loading using reduced-scale model tests. The use of extensible reinforcements and allowing the footing to tilt are found to be effective solutions to minimize deformations and lateral pressures.
GEOTEXTILES AND GEOMEMBRANES
(2022)
Article
Engineering, Geological
Jianfeng Chen, Xiaopeng Guo, Rui Sun, Sathiyamoorthy Rajesh, Song Jiang, Jianfeng Xue
Summary: This study investigated the mechanical response and geogrid fracture behavior of reinforced soil foundation through experiments and numerical simulations. It was found that increasing the number of geogrid layers significantly improves the bearing capacity and stiffness of the soil foundation.
GEOTEXTILES AND GEOMEMBRANES
(2021)
Article
Engineering, Civil
Gunes Babagiray, Sami Oguzhan Akbas, Ozgur Anil
Summary: This paper introduces the results of eight full-scale impact load tests on soils reinforced with various geosynthetics on buried HDPE pipes. The tests measured acceleration and pressure to understand the performance of the protective layers. The results showed that geotextile performed the best in terms of pressure absorption and acceleration reduction, while composite structures of geogrid and strip geogrid performed better than traditional counterparts. Geocell had the lowest performance. Geogrid was the most efficient in reducing acceleration per unit cost. The results are consistent with previous laboratory-scale experiments.
TRANSPORTATION GEOTECHNICS
(2023)
Article
Chemistry, Multidisciplinary
Selcuk Bildik, Edward Alan Dickin, Mehmet Salih Keskin, Kanniappan Ilamparuthi, Mustafa Laman
Summary: This study investigates the uplift capacities of strip anchor plates at different embedment depths by considering the effect of geogrid material. The results show that the uplift capacity is significantly improved when geogrid is used, especially when placed in a single layer with an inclination angle of 45 degrees. The experimental and numerical results are found to be compatible, and practical suggestions are provided based on the findings.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Civil
Vahab Sarfarazi, Abdollah Tabaroei, Kaveh Asgari
Summary: In this study, unreinforced and geogrid-reinforced soil foundations were modeled using the discrete element method. The effects of geogrid position, thickness, quantity, and confining pressure on footing settlement and tensile force propagation were investigated. The study also analyzed the interaction between a rectangular tunnel and strip footing with and without a geogrid layer. The results showed that the bearing capacity of the reinforced soil tunnel was greatly improved due to the collaboration of three layers of geogrid reinforcements.
GEOMECHANICS AND ENGINEERING
(2022)
Article
Engineering, Geological
R. Gedela, R. Karpurapu
Summary: The study emphasizes the importance of considering the exact shape of geocell pockets in three-dimensional numerical modeling, showing that models with an exact shape demonstrate better agreement with experimental data. Calibration of models using laboratory plate load tests was crucial for accurate predictions.
GEOSYNTHETICS INTERNATIONAL
(2021)
Article
Engineering, Geological
Jian-feng Chen, Ning Bao, Rui Sun
Summary: This paper presents a three-dimensional discrete numerical analysis of the interaction between geogrid and surrounding soils in geogrid-reinforced sand foundations under strip footing. The study focuses on the deformation behaviors, contact force network, energy dissipation mechanism, and response of the geogrid. The analysis also considers the effect of geogrid layout parameters on the bearing capacity of foundations and progressive failure of reinforcements. The results show that the inclusion of geogrid layers inhibits horizontal displacement in the reinforced zone and results in an upward tensile failure of reinforcements. The failure modes include punching shear failure and general shear failure, which are influenced by reinforcement spacing and number of layers.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2022)
Article
Engineering, Geological
H. M. Ho, J. Kuwano
Summary: The confined-reinforced earth (CRE) method effectively reduces settlement between bridges and embankments caused by earthquakes, ensuring smooth traffic flow. Research shows that increasing the length of embedded geogrids in CRE can decrease surface settlement and slope until a certain value, beyond which deformation changes minimally. Moreover, tensile strain in the geogrids increases with embedded length under settlement, with the maximum tensile strain linearly increasing with settlement.
GEOSYNTHETICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Danrong Wang, Sheng-Lin Wang, Susan Tighe, Sam Bhat, Shunde Yin
Summary: This paper presents a full-scale field study on the installation and construction practices of geosynthetics in pavements. The results show that geosynthetic-reinforced pavements can maintain pavement resilience during construction and mitigate the disturbances caused by construction activities.
APPLIED SCIENCES-BASEL
(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
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, 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
Mechanics
Sujata Gupta, Anupam Mital
Summary: This study investigated the behavior of model footings on unreinforced and reinforced sand beds under different loading conditions. The results showed that eccentricity and inclination of loads affected the ultimate bearing capacities. Increasing the depth of the model footing and the number of reinforcing layers significantly increased the ultimate bearing capacity.
STUDIA GEOTECHNICA ET MECHANICA
(2021)
Article
Engineering, Geological
Subinay Saha Roy, Kousik Deb
INTERNATIONAL JOURNAL OF GEOMECHANICS
(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)
