This paper presents the principles involved with centrifuge modeling of geosynthetics in earth structures and a case study where geotechnical centrifuge modeling was successfully used. The intent is to illustrate the design of a centrifuge modeling experiment, including proper scaling, selection of g levels, and material selection. The case study involved the feasibility of directly inserting high strength, high permeability geosynthetic composites into marginally stable slopes. This is much like that for wick drains, except the reinforcing elements are inserted in a horizontal direction, rather than vertical. The geosynthetic elements provide soil reinforcement, and also drainage, stabilizing the slope. The simulation of high prototype stresses on the geotechnical centrifuge can be utilized to perform realistic in flight slope reinforcement of large scale earth structures.
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