Geogrid donatili stabilize dolgu tabakasi ile kil zeminlerin iyileştirilmesi

In soft or loose soils, design and construction of a foundation is a problematic for civil engineers due to large settlements and low bearing capacity. In such cases, deep foundation application or soil improvement can solve the problem. However, deep foundations tend to be expensive, so soil improvement is usually preferred. Among the methods of soil improvement, which gained importance in recent years, geosentetic reinforced soil is economic, rapid and lasting solution.In this study, the improvement of clay soil by application of geogrid reinforced granular filler is investigated by field tests. In the tests, 30cm and 60cm diameter circular model foundations are used. Later, numerical analysis has been done via PLAXIS 2D, a software which simulates soil behavior by calculations based on finite element method, and results are compared with the ones from fields tests. Both field test and numerical analysis results show that, in circular foundations, geogrid reinforced granular filler application has important effect on reducing settlements and increasing bearing capacity of soil.Key words: Geogrid, Clay, Bearing Capacity, Shallow Foundation, PLAXIS