IMPROVEMENT OF SOIL USING GEOGRIDS TO RESIST ECCENTRIC LOADS.

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Mosa J. Al-Mosawe
A'amal A. Al-Saidi
Faris W. Jawad

Abstract

This paper presents the results of experimental investigations to predict the bearing capacity of square footing on geogrid-reinforced loose sand by performing model tests. The effects of several parameters were studied in order to study the general behavior of improving the soil by using the geogrid. These parameters include the eccentricity value, depth of first layer of reinforcement, and vertical spacing of reinforcement layers. The results of the experimental work indicated that there was an optimum reinforcement embedment depth at which the bearing capacity was the highest when single-layer reinforcement was used. The increase of (z/B) (vertical spacing of reinforcement layer/width of footing) above 1.5 has no effect on the relative improvement for the soil and the relative improvement (%) of the reinforced soil can be predicated by using a simple equation .

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How to Cite
“IMPROVEMENT OF SOIL USING GEOGRIDS TO RESIST ECCENTRIC LOADS”. (2008) Journal of Engineering, 14(04), pp. 3198–3208. doi:10.31026/j.eng.2008.04.25.
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Articles

How to Cite

“IMPROVEMENT OF SOIL USING GEOGRIDS TO RESIST ECCENTRIC LOADS”. (2008) Journal of Engineering, 14(04), pp. 3198–3208. doi:10.31026/j.eng.2008.04.25.

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References

Fukuda, N., Taki, M., and Sutoh, Y., 1987. Foundation Improvement by Polymer Grid reinforcement. Proceedings of the 8th Asian Regional Conference on Soil Mechanics and Foundation Engineering, pp. 365-368.

Guido, V.A., Knueppel, J.D., and Sweeny, A.1987. Plate loading test on geogrid reinforced earthslabs. Proceedings Geosynthetics’ 87 Conference,New Orleans. pp216-225

Mckittrick, D. P. and Darbin, M., (1979); "World- Wide Development and Use of Reinforced Earth Structures", Ground Engineering, Vol. 12, No.2, p.p. 15-21.

Selvadurai, A.P.S. and Gnanendran, C.T., 1989. An Experimental Study of a Footing Located on a Sloped Fill: Influence of a Soil Reinforcement Layer. Canadian Geotechnical Journal, Vol. 26, No. 3, pp. 467-473.

Singh, H.R. 1988. Bearing capacity of reinforced soil beds. Ph.D. Thesis . Indian Institute of Science, Bangalore, India

Vidal, H., (1969); "The Principle of Reinforced Earth", Highway Research Record, HRR-282, p.p. 1-16.