Article
Construction & Building Technology
Xia Bian, Weiheng Peng, Chengchun Qiu, Guizhong Xu, Yikang Yao
Summary: This study introduces the Geosynthetic Encased Prestressed (GEP) cemented slurry pile technology and evaluates the influence of prestress and geogrid on the bearing capacity of cemented slurry reinforced piles composited foundation. The presence of geogrid enhances the load-bearing capabilities of the composite foundation and reduces settlement. The findings offer valuable insights for practical engineering applications, advancement of ecofriendly transportation, and fostering sustainable development.
CASE STUDIES IN CONSTRUCTION MATERIALS
(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
Junli Gao, Lu Liu, Yapo Zhang, Xuelei Xie
Summary: This study compares the bearing capacity and deformation characteristics of geogrid reinforced foundation under different types and layers of geogrids, utilizing reduced-scale transparent soil model tests. Images captured by laser transmitter and digital camera are analyzed through digital image processing technique to study foundation deformation.
CONSTRUCTION AND BUILDING MATERIALS
(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
Ghazal Rezai Soufi, Reza Jamshidi Chenari, Richard J. Bathurst
Summary: In this paper, the upper bound limit analysis method is used for the first time to study the limit load of strip footings seated on cohesive-frictional soils reinforced with a single geosynthetic layer. Both tensile rupture and sliding failure modes for the geosynthetic layer are considered in the analysis. The results include the optimum reinforcement depths and a bearing capacity equation with different factors for tensile rupture and sliding failure modes.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2022)
Article
Engineering, Civil
Fulin Li, Tianran Ma, Yugui Yang
Summary: This study investigated the rate-dependent behaviors of geogrid reinforced sand retaining walls under different loading conditions using physical model tests and nonlinear finite element method (FEM) analysis. The results showed that the FEM was successfully extended to boundary value problems of geosynthetic reinforced soil retaining walls, accurately reproducing the deformation and strength characteristics, as well as predicting loading rate effects and pressure trends. The FEM simulations were able to predict well the lateral earth pressure distributions, local tensile forces in the geogrid, and local stresses beneath the footing under various loading conditions.
GEOMECHANICS AND ENGINEERING
(2021)
Article
Construction & Building Technology
Jia-Quan Wang, Liang-Liang Zhang, Yi Tang, Shi-Bin Huang
Summary: Dynamic tests were conducted on a square footing with unreinforced and reinforced foundations to investigate the impact of geogrid-reinforcement arrangements on load-carrying characteristics under repeated loading. The results showed that reinforcement significantly increased bearing capacity, with optimal values for u and N. Analysis revealed that the sequence of influence on bearing capacity was u value, wraparound reinforcement method, and N value, while the sensitivity of arrangement on acceleration responses followed the sequence of N value, wraparound reinforcement method, and u value.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Geological
Ruiling Feng, Bo Peng, Lijian Wu, Yupeng Shen, Yiming Zhang
Summary: Meadow soil foundation exhibits a stress diffusion effect, which reduces vertical additional stress and settlement but expands the distribution area of additional stress. A method for calculating the ultimate bearing capacity of a meadow soil foundation was developed, with the calculation results closely matching the measured values.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2021)
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
Engineering, Civil
Junli Gao, Xuelei Xie, Ye Lu, Yapo Zhang
Summary: This paper investigates the behavior of reinforced foundations using geogrid on transparent soil foundations. Through laboratory tests and numerical simulations, the reinforcement mechanism and bearing capacity of the geogrid-reinforced foundations are analyzed. The results demonstrate that geogrid can effectively improve the bearing capacity of the foundations and delay the development of sliding surfaces.
KSCE JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Engineering, Marine
Hongzhen Chen, Le Wang, Yinghui Tian, Chongchong Qi
Summary: This study investigates the bearing capacity of strip foundations on two-layered clay considering spatial variability using the random finite element method (RFEM). The results show that the embedment ratio and the spatial variability parameters of the upper layer greatly affect the normalized probabilistic bearing capacities. A model based on the random forest algorithm is established to predict probabilistic bearing capacities, providing an easy-to-use alternative to RFEM analysis.
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
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
Multidisciplinary Sciences
Zhu Wenbo, Dai Guoliang, Gong Weiming
Summary: The new gravitational reinforced composite suction caisson foundation has higher uplift bearing capacity compared to traditional suction caisson foundation, with increasing uplift bearing capacity with additional load and reinforcement range. The shear strength of the caisson-cement soil interface increases with the increase of normal stress and cement penetration ratio.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Amir Hamidi, Mohammad Saeid Niknezhad, Farhad Asemi, Marjan Sadrjamali
Summary: Shells are thin-walled structures that achieve stability and bearing capacity through their specific shape. This research investigates the behavior of triangular shell strip footings and flat strip footings under different reinforcement conditions. The results show that decreasing the apex angle of shell footings increases bearing capacity and reduces settlement. The optimal depth of the first geogrid layer in sloped backfill is 3-4 times of that in flat backfill. Using two geogrid layers improves the performance of shell footings. The findings also suggest that shell footings have better settlement behavior compared to flat footings. Design curves are provided for determining the optimal location of geogrid layers for shell footings on flat and sloped backfills.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
