Author: Atilla DEMİRÖZ, Özcan TAN

Publishing Date: 2008

ISSN: 2147-9364

Volume 23 Issue 3


In order to keep the settlement of the constructions in a safe value, various reinforcements (geosynthetics) placed in the soil have been used. Their usages are increasing day by day. In this application, geosynthetics being durable to tensional forces and able to form friction with the soil interface gives more practical, economic and fast solutions for the geotechnical improvement than the classical methods.

In this study, design factors affecting the bearing capacity of strip foundation on geogrid-reinforced sand were investigated experimentally. The experiments were made according to Taguchi’s 5 parameter, 4 level, and standard L16 orthogonal arrays. Signal-to-noise (S/N) and variance analysis are used to determine the levels of the factors affecting the bearing capacity. It was determined that the most effective parameters on bearing capacity are foundation width (with 52 % influence ratio) and foundation depth (with 30 % influence ratio). While the foundation width and depth increased, the bearing capacity increased also.

Key Words: Reinforced soil; Taguchi method; geogrid; settlement analysis; sandy soils

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