<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This study presents the behaviour of model footing resting over unreinforced and reinforced sand bed under different loading conditions carried out experimentally. The parameters investigated in this study includes the number of reinforced layers (<italic>N</italic> = 0, 1, 2, 3, 4), embedment ratio (<italic>D<sub>f</sub></italic>/<italic>B</italic> = 0, 0.5, 1.0), eccentric and inclined ratio (<italic>e</italic>/<italic>L</italic>, <italic>e</italic>/<italic>B</italic> = 0, 0.05, 0.10, 0.15) and (<italic>a</italic> = 0°, 7°, 14°). The test sand was reinforced with bi-axial geogrid (Bx20/20). The test results show that the ultimate bearing capacities decrease with axial eccentricity and inclination of applied loads. The test results also show that the depth of model footing increase zero to <italic>B</italic> (<italic>B</italic> = width of model footing), an increase of ultimate bearing capacity (UBC) approximated at 93%. Similarly, the multi-layered geogrid reinforced sand (<italic>N</italic> = 0 to 4) increases the UBC by about 75%. The bearing capacity ratio (<italic>BCR</italic>) of the model footing increases with an increasing load eccentricity to the core boundary of footing; if the load eccentricities increase continuity, the <italic>BCR</italic> decreases. The tilt of the model footing is increased by increasing the eccentricity and decreases with increasing the number of reinforcing layers.</p>
</abstract>

This study presents the behaviour of model footing resting over unreinforced and reinforced sand bed under different loading conditions carried out experimentally. The parameters investigated in this study includes the number of reinforced layers (N = 0, 1, 2, 3, 4), embedment ratio (Df/B = 0, 0.5, 1.0), eccentric and inclined ratio (e/L, e/B = 0, 0.05, 0.10, 0.15) and (a = 0°, 7°, 14°). The test sand was reinforced with bi-axial geogrid (Bx20/20). The test results show that the ultimate bearing capacities decrease with axial eccentricity and inclination of applied loads. The test results also show that the depth of model footing increase zero to B (B = width of model footing), an increase of ultimate bearing capacity (UBC) approximated at 93%. Similarly, the multi-layered geogrid reinforced sand (N = 0 to 4) increases the UBC by about 75%. The bearing capacity ratio (BCR) of the model footing increases with an increasing load eccentricity to the core boundary of footing; if the load eccentricities increase continuity, the BCR decreases. The tilt of the model footing is increased by increasing the eccentricity and decreases with increasing the number of reinforcing layers.

Behaviour of eccentrically inclined loaded rectangular foundation on reinforced sand

Studia Geotechnica et Mechanica

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

This study presents the behaviour of model footing resting over unreinforced and reinforced sand bed under different loading conditions carried out...

Behaviour of eccentrically inclined loaded rectangular foundation on reinforced sand

Article Category: Original Study

Published Online: Jun 30, 2021

Page range: 74 - 89

Received: Jul 27, 2020

Accepted: Feb 06, 2021

DOI: https://doi.org/10.2478/sgem-2021-0003

Keywords
Eccentric loading, load inclination, ultimate bearing capacity (UBC), rectangular footing, geogrid

© 2021 Sujata Gupta et al., published by Sciendo

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

Behaviour of eccentrically inclined loaded rectangular foundation on reinforced sand

Article Category: Original Study

Published Online: Jun 30, 2021

Page range: 74 - 89

Received: Jul 27, 2020

Accepted: Feb 06, 2021

DOI: https://doi.org/10.2478/sgem-2021-0003

KeywordsEccentric loading, load inclination, ultimate bearing capacity (UBC), rectangular footing, geogrid

© 2021 Sujata Gupta et al., published by Sciendo

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

Keywords
Eccentric loading, load inclination, ultimate bearing capacity (UBC), rectangular footing, geogrid