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<p>This study presents the behavior of vertically confined square footing on geogrid-reinforced sand under centric inclined loading through a series of experimental tests. The load was applied at 5°, 10° and 20° angles of inclination with the vertical. The tests were conducted on surface footing, footing with confiner and footing with confiner and horizontal reinforcement configurations subjected to inclined loading. Parametric variations like depth of the confiner (d=1B, 1.5B, 2B), number of geogrid layers (N; varies with variation in depth of confiner), and spacing between horizontal reinforcements (Y=0.25B, 0.5B, 0.75B, 1B) have been investigated at the top surface dimension of confiner (D) as 1.0B, 1.5B and 2.0B (where B is the width of the model footing). Results show that combined effect of confiner and horizontal reinforcement increases the ultimate bearing capacity of footing significantly compared to only confiner for all angle of inclinations. It can also be observed that load bearing capacities decrease with increase in angles of inclination and record the minimum improvement at 20° angle of inclination. Improvement in bearing capacities and reduction in settlement of footing analyzed in terms of bearing capacity ratio (BCR) and settlement reduction factor (SRF) are compared for all footing configurations. To summarize, the test results showed that confiner along with reinforcement can be considered as an economic ground improvement technique for shallow foundations to counter against heavily inclined loading.</p>
</abstract>

This study presents the behavior of vertically confined square footing on geogrid-reinforced sand under centric inclined loading through a series of experimental tests. The load was applied at 5°, 10° and 20° angles of inclination with the vertical. The tests were conducted on surface footing, footing with confiner and footing with confiner and horizontal reinforcement configurations subjected to inclined loading. Parametric variations like depth of the confiner (d=1B, 1.5B, 2B), number of geogrid layers (N; varies with variation in depth of confiner), and spacing between horizontal reinforcements (Y=0.25B, 0.5B, 0.75B, 1B) have been investigated at the top surface dimension of confiner (D) as 1.0B, 1.5B and 2.0B (where B is the width of the model footing). Results show that combined effect of confiner and horizontal reinforcement increases the ultimate bearing capacity of footing significantly compared to only confiner for all angle of inclinations. It can also be observed that load bearing capacities decrease with increase in angles of inclination and record the minimum improvement at 20° angle of inclination. Improvement in bearing capacities and reduction in settlement of footing analyzed in terms of bearing capacity ratio (BCR) and settlement reduction factor (SRF) are compared for all footing configurations. To summarize, the test results showed that confiner along with reinforcement can be considered as an economic ground improvement technique for shallow foundations to counter against heavily inclined loading.

Behavior of Vertically Confined Square Footing on Reinforced Sand under Centric Inclined Loading

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution 4.0 International License.

This study presents the behavior of vertically confined square footing on geogrid-reinforced sand under centric inclined loading through a series of...

Behavior of Vertically Confined Square Footing on Reinforced Sand under Centric Inclined Loading

Article Category: Original Study

Published Online: Jul 27, 2022

Page range: 224 - 238

Received: Nov 26, 2021

Accepted: May 20, 2022

DOI: https://doi.org/10.2478/sgem-2022-0012

Keywords
Centric inclined loading, load intensity, settlement, geogrid, sand, square footing

© 2022 B. Kirtimayee et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Behavior of Vertically Confined Square Footing on Reinforced Sand under Centric Inclined Loading

Article Category: Original Study

Published Online: Jul 27, 2022

Page range: 224 - 238

Received: Nov 26, 2021

Accepted: May 20, 2022

DOI: https://doi.org/10.2478/sgem-2022-0012

KeywordsCentric inclined loading, load intensity, settlement, geogrid, sand, square footing

© 2022 B. Kirtimayee et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Centric inclined loading, load intensity, settlement, geogrid, sand, square footing