Journal Published Online: 14 February 2008
Volume 31, Issue 5

Large-Scale Model Footing Tests on Geogrid-Reinforced Foundation and Marginal Embankment Soils

CODEN: GTJODJ

Abstract

This paper aims at investigating the behavior of foundations on geogrid-reinforced silty clay marginal embankment soil. For this purpose, a total of six large-scale field tests were conducted using a reinforced concrete model footing with dimensions of 457 mm by 457 mm. The parameters investigated in this study included the number of reinforcement layers, the vertical spacing between layers, and the tensile modulus of reinforcement. The effect of reinforcement on the vertical stress distribution in the soil and the strain distribution along the reinforcement were also investigated. The test results showed that the inclusion of geogrid reinforcements results in increasing the soil’s bearing capacity and reducing the footing settlement. The reinforcement benefits improve with the increase in number and tensile modulus of geogrids and with the decrease in layers’ spacing. The inclusion of reinforcements helps in redistributing the applied load to a wider area. The test results also showed that the developed strain along the geogrids is directly related to the footing settlement.

Author Information

Abu-Farsakh, Murad
Deptartment of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, LA
Chen, Qiming
Louisiana Transportation Research Center, Louisiana State University, Baton Rouge, LA
Sharma, Radhey
Department of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, LA
Zhang, Xiong
Department of Civil and Environmental Engineering, University of Alaska, Fairbanks, AK
Pages: 11
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: GTJ101465
ISSN: 0149-6115
DOI: 10.1520/GTJ101465