scholarly journals BEHAVIOR OF STRIP FOOTING ON REINFORCED SAND SLOPE

2015 ◽  
Vol 21 (3) ◽  
pp. 376-383 ◽  
Author(s):  
Enas B. Altalhe ◽  
Mohd Raihan Taha ◽  
Fathi M. Abdrabbo

This study evaluated the effects of single, double, and triple reinforcing layers on the bearing capacity ratio (BCR) of strip footing on a sand slope system. Seventy-two laboratory-loading tests were conducted on a stripfooting model on a reinforced sand slope. Moreover, this study illustrated the effects of the different parameters of two reinforcing layers on the bearing capacity of a double-reinforced sand slope. The BCR increased from 1.06 to 3.00 for single-reinforced slope soils, 1.09 to 7.73 for double-reinforced slope soils, and up to 8.00 for three-layered reinforced systems. For double-reinforced soil slopes, the most effective spacing between the two reinforcing layers is 0.3 B.

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sujata Gupta ◽  
Anupam Mital

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.


1989 ◽  
Vol 26 (1) ◽  
pp. 154-159 ◽  
Author(s):  
M. A. Mahmoud ◽  
F. M. Abdrabbo

This note presents an experimental study concerning a method of improving the bearing capacity of strip footing resting on sand subgrades utilizing vertical nonextensible reinforcement. The test results indicate that this type of reinforcement increases the bearing capacity of subgrades and modifies the load–displacement behaviour of the footing. Key words: bearing capacity, nonextensible reinforcement, loading tests, strip footing, reinforcing element.


2019 ◽  
Vol 56 (4) ◽  
pp. 232-238
Author(s):  
A. Abdi ◽  
K. Abbeche ◽  
B. Mazouz ◽  
R. Boufarh

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