The slip surface in the reinforced soil foundation
with 2 layers does not comply with the slip surface of
Terzaghi. According to the failure wide- slab in Z/B=1
depth, the size of the triangle areas under the reinforced
All authors contributed equally to this work.
) times increases compared to
The authors declare that they have no competing
the base, furthermore the area of
Z/B=1.52 is part of active triangle Rankin area and shear
In the mentioned areas the direction of the
displacement vectors is to down and also is horizontal.
Besides, in enhanced cases with the short reinforced
width. The failure areas reached up to the reinforced layer.
This survey makes it known that when loading increased
the tip of the failure wedge turned to the left and the soil
beneath the base merely is scattered from one side.
This experiment was repeated several times and
probable conclusion are below:
The force system was not balanced. This system was
installed to the rigid frame by two buckles. It is possible to
check its balance with the eyes but errors may occur while
balancing it with the eyes. The force on the base was out
of the center. The force of the base is on the Load cell
which is in center of the iron plate. Due to the
implementing it by hands, there may be some imprecision.
So, the load may be was not exactly at center.
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excavation-induced lateral soil movements on the
behavior of strip footing supported on reinforced
sand. Original Research Article. Journal of
Advanced Research, Volume 3, Issue 4, Pages 337-
Inconsistency of the soil beneath the base which is
of least important compared to the two previously
mentioned cases above.
Huang CC and Menq FY (1997). Deep footing and wide-
slab effects on reinforced sandy ground. Journal of
Geotechnical and Geoenvironmental Engineering,
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Lackner C and Bergado DT and Semprich S (2013).
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and experimental investigations". Original Research
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Saket A )2006(. Geogrid and its application", the Ministry
of Industry and Mines, Geological and Mineral
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Wiley, Inc., New York.
Picture 9. Test 4. Failure surfaces in soil reinforced with
White DJ and Take WA and Bolton MD (2003). Soil
deformation measurement using particle image
By comparing the two pictures of 7- 9 we can
conclude that increase of the reinforced layers results in
failure of the surface and makes it (failure surface) to be
wider and deeper when we reinforced the soil with two
layers meaning that failure surface in enhanced cases with
two reinforced layers is longer and huge mass of
reinforced soli are in action and more loading capacity is
being covered in this very case.
Géotechnique 53, No. 7, 619-631.
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measurement of landfill settlement using digital
imaging and PIV analysis. Schofield Center,
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To cite this paper: Ashkan F (2018). The Analysis of Reinforced Soil under Strip Foundation by Measurement of the Displacement Vectors by the Means of Image Processing. J.