A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behaviour of a Strip Footing Embedded in a Sand Slope Reinforced with Multilayer Geotextile
https://orcid.org/0000-0002-7706-223X
https://orcid.org/0000-0002-4685-5560
Abstract This paper presents the results of laboratory model tests and numerical analysis on the behaviour of a strip footing embedded in a multilayer geotextile-reinforced sand slope. The investigation was aimed at determining the effect of footing embedment depth $$ D $$ and number of geotextile layers $$ N $$ on the bearing capacity and settlement characteristics of an embedded footing. The results show that the load–settlement behaviour of the embedded footing is significantly affected by $$ D $$ and $$ N $$. The advantage of reinforcing the slope with more than one geotextile layer and placing the footing below the slope crest has been evaluated using a non-dimensional parameter, called the ultimate bearing capacity ratio $$ {\text{BCR}}_{u} $$, defined as the ratio of ultimate bearing capacity of the reinforced case to that of unreinforced case. It is observed that $$ {\text{BCR}}_{u} $$ improves with an increase in $$ N $$ but reduces with an increase in $$ D/B $$, where $$ B $$ is the footing width. The minimum $$ {\text{BCR}}_{u} $$, $$ {\text{BCR}}_{u} (\hbox{min} ) \approx 2 $$ is observed for $$ N = 1 $$ and $$ D/B = 1 $$, while the maximum $$ {\text{BCR}}_{u} $$, $$ {\text{BCR}}_{u} (\hbox{max} ) \approx 6 $$ is attained when the footing is placed at $$ D/B = 0 $$ and $$ N = 3 $$. A comparison between the numerical and laboratory test results shows a very good agreement.
Behaviour of a Strip Footing Embedded in a Sand Slope Reinforced with Multilayer Geotextile
https://orcid.org/0000-0002-7706-223X
https://orcid.org/0000-0002-4685-5560
Abstract This paper presents the results of laboratory model tests and numerical analysis on the behaviour of a strip footing embedded in a multilayer geotextile-reinforced sand slope. The investigation was aimed at determining the effect of footing embedment depth $$ D $$ and number of geotextile layers $$ N $$ on the bearing capacity and settlement characteristics of an embedded footing. The results show that the load–settlement behaviour of the embedded footing is significantly affected by $$ D $$ and $$ N $$. The advantage of reinforcing the slope with more than one geotextile layer and placing the footing below the slope crest has been evaluated using a non-dimensional parameter, called the ultimate bearing capacity ratio $$ {\text{BCR}}_{u} $$, defined as the ratio of ultimate bearing capacity of the reinforced case to that of unreinforced case. It is observed that $$ {\text{BCR}}_{u} $$ improves with an increase in $$ N $$ but reduces with an increase in $$ D/B $$, where $$ B $$ is the footing width. The minimum $$ {\text{BCR}}_{u} $$, $$ {\text{BCR}}_{u} (\hbox{min} ) \approx 2 $$ is observed for $$ N = 1 $$ and $$ D/B = 1 $$, while the maximum $$ {\text{BCR}}_{u} $$, $$ {\text{BCR}}_{u} (\hbox{max} ) \approx 6 $$ is attained when the footing is placed at $$ D/B = 0 $$ and $$ N = 3 $$. A comparison between the numerical and laboratory test results shows a very good agreement.
Behaviour of a Strip Footing Embedded in a Sand Slope Reinforced with Multilayer Geotextile
https://orcid.org/0000-0002-7706-223X
https://orcid.org/0000-0002-4685-5560
Abstract This paper presents the results of laboratory model tests and numerical analysis on the behaviour of a strip footing embedded in a multilayer geotextile-reinforced sand slope. The investigation was aimed at determining the effect of footing embedment depth $$ D $$ and number of geotextile layers $$ N $$ on the bearing capacity and settlement characteristics of an embedded footing. The results show that the load–settlement behaviour of the embedded footing is significantly affected by $$ D $$ and $$ N $$. The advantage of reinforcing the slope with more than one geotextile layer and placing the footing below the slope crest has been evaluated using a non-dimensional parameter, called the ultimate bearing capacity ratio $$ {\text{BCR}}_{u} $$, defined as the ratio of ultimate bearing capacity of the reinforced case to that of unreinforced case. It is observed that $$ {\text{BCR}}_{u} $$ improves with an increase in $$ N $$ but reduces with an increase in $$ D/B $$, where $$ B $$ is the footing width. The minimum $$ {\text{BCR}}_{u} $$, $$ {\text{BCR}}_{u} (\hbox{min} ) \approx 2 $$ is observed for $$ N = 1 $$ and $$ D/B = 1 $$, while the maximum $$ {\text{BCR}}_{u} $$, $$ {\text{BCR}}_{u} (\hbox{max} ) \approx 6 $$ is attained when the footing is placed at $$ D/B = 0 $$ and $$ N = 3 $$. A comparison between the numerical and laboratory test results shows a very good agreement.
Behaviour of a Strip Footing Embedded in a Sand Slope Reinforced with Multilayer Geotextile
Baah-Frempong, Emmanuel (author) / Shukla, Sanjay Kumar (author)
2019
Article (Journal)
English
Behaviour of a Strip Footing Embedded in a Sand Slope Reinforced with Multilayer Geotextile
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