Model tests on reinforced sloped embankment with denti-strip inclusions under monotonic loading

Zhang, M. X.; Qiu, Chengchun; Zhang, S. L.

doi:10.1007/s12205-014-0222-y

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…In order to determine the accuracy of the model predictions, both coefficient of determination (R 2 ) and the root mean square error (RMSE) in curve fitting as defined in Eqs. (6) and 7were quantified.…”

Section: Comparison Of Model Predictionmentioning

confidence: 99%

“…To reduce footing tilt, Mahiyar and Patel [5] examined an angle shaped footing exposed to eccentric loading. Reinforced soil has been an ordinary practice in geotechnical engineering applications such as road construction, railway embankments, and stabilization of slopes and enhancement of soft ground properties [6]. It has been extensively expected that inducting reinforcements to a shallow foundation will considerably increase the bearing capacities [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Testing and Analytical Modeling of Strip Footing in Reinforced Sandy Soil with Multi-Geogrid Layers Under Different Loading Conditions

Raheem¹,

Abdulkarem²

2016

AJCE

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In this study, large-scale physical models with dimensions of (0.9m * 0.9m * 0.55m) have been designed and constructed to investigate the behavior of strip footing in reinforced sandy soil with multi-geogrid layers under inclined and eccentric loading conditions. The effect of several parameters such as geogrid layers (N), soil relative density (RD), depth of the topmost geogrid layer (U/B), load inclination angle (α) and load eccentricity ratio (e/B) on the bearing capacity ratio (BCR) of reinforced soil have been investigated through 120 experimental tests. As the number of the geogrid layers increased from 0 to 4, the BCR increased by 255% for 15 o load inclination angle and by 470% for 0.05 load eccentricity ratio in 60% RD. When the RD of the soil increased from 60% to 80%, the average decreases in horizontal displacement and footing tilting angle were about 35% and 21% respectively. Hyperbolic analytical model was used to predict the relationships of most of the studied parameters. However, p-q analytical model was suggested to model the relationship between the BCR versus U/B. Both suggested models (hyperbolic and p-q) were in a very good agreement with the experimental results.

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Section: Comparison Of Model Predictionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Testing and Analytical Modeling of Strip Footing in Reinforced Sandy Soil with Multi-Geogrid Layers Under Different Loading Conditions

Raheem¹,

Abdulkarem²

2016

AJCE

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“…Hou et al [ 33 ] indicated that vertical stripes provide passive resistance against soil, significantly increasing the shear strength of the soil. Zhang et al [ 34 ] studied the influence of H–V strips on the bearing capacity of the foundation through a series of model tests. Hou et al [ 35 ] further investigated the effect of the depth of single-layer strips and the number of strip layers on the bearing capacity of the H–V strip-reinforced foundation.…”

Section: Introductionmentioning

confidence: 99%

Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

et al. 2023

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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 bearing capacities of the unreinforced foundation, the conventional geogrid, and the H–V geogrid-reinforced foundation were compared. The parameters, including the length of the H–V geogrid, the vertical geogrid height, the depth of the top layer, and the number of H–V geogrid layers, are discussed. Through experiments, it was found that the optimal length of H–V geogrid is around 4B, the optimal vertical geogrid height is approximately 0.6B, and the optimal depth of the top H–V geogrid layer is between 0.33B and 1B. The optimal number of H–V geogrid layers is 2. The result also indicates that the bearing capacity of H–V geogrid is almost 1.7 times greater than that of conventional geogrid. Additionally, the maximum top subsidence of H–V geogrid-reinforced foundation decreased by 13.63% compared to that of conventional geogrid-reinforced foundation. Under the same settlement, the bearing capacity ratio of two H–V geogrid-reinforced foundation layers is 75.28% higher than that of one layer. The results also demonstrate that the vertical elements of H–V geogrid interlock the sand from being displaced under the applied load and redistribute the surcharge over a wider area, thereby increasing the shear strength and improving the bearing capacity of an H–V geogrid-reinforced foundation.

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Experimental Study for the Geogrid-Reinforced Embankment with Clay Cover Under Static and Cyclic Loading

2023

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Model tests on reinforced sloped embankment with denti-strip inclusions under monotonic loading

Cited by 5 publications

References 20 publications

Experimental Testing and Analytical Modeling of Strip Footing in Reinforced Sandy Soil with Multi-Geogrid Layers Under Different Loading Conditions

Experimental Testing and Analytical Modeling of Strip Footing in Reinforced Sandy Soil with Multi-Geogrid Layers Under Different Loading Conditions

Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

Experimental Study for the Geogrid-Reinforced Embankment with Clay Cover Under Static and Cyclic Loading

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