ANALYSIS OF GEOSYNTHETIC REINFORCED SOIL USING A SIMPLE TRANSFORM FUNCTION

Abstract The use of geosynthetic to reinforce soft-soils or peat in order to improve the load-settlement response is quite common. In such cases a layer of engineered fill, reinforced with a geosynthetic, is placed on the soft ground and the load is supported by the granular fill. In the present paper a procedure is outlined for the analysis of such a geothynthetic reinforced soil system. The granular fill is assumed to be rigid-strain hardening plastic and the soft soil is modeled by a Winkler type foundation. The grid is considered to be “rough” on its surfaces and be linearly elastic when subjected to tensile stresses. A simple transform function is used in the analysis. Through the analysis performed the influence of various factors such as the degree of overconsolidation (through compaction) of the fill, its dilatational properties, and the tangent modulus of the geogrid are investigated and discussed.