Geosentetiklerle güçlendirilmiş karayolu temellerinin plaka yükleme deneyleri ile değerlendirilmesi

Öz

Özellikle son otuz yılda esnek üst yapı temellerinin geosentetiklerle güçlendirilmesi hızla yaygınlaşmıştır. Geosentetiklerle güçlendirmenin kaplama performansını iyileştirdiği bilinmesine karşın güçlendirmeyi sağlayan mekanizmalar hala açık değildir. Bu çalışmada, zayıf zemin üzerine geogridle güçlendirilmiş temel dolgusuna sahip yollarda, trafik yükleri öncesinde ve sonrasında arazide yapılan plaka yükleme deneyleri ile güçlendirmenin etkileri araştırılmıştır. Arazi deneyi sonuçlarından zayıf zeminler üzerine inşa edilen granüler dolgu tabakalarında geosentetiklerle güçlendirmenin alt tabakaların taşıma gücünün yetersizliğinden kaynaklanan deformasyonların azaltılmasında iyi bir yöntem olduğu görülmüştür.

Anahtar Kelimeler

• Arazi deneyleri
• Zayıf zemin
• Granüler dolgu
• Geogrid
• Plaka yükleme deneyi

Evaluating of geosynthetics reinforced road base with plate loading tests

Abstract

The use of geosynthetics as reinforcement for the base layer of flexible pavement systems has grown steadily over the past thirty years. Although geosynthetic reinforcements can lead to improved pavement performance, the specific conditions or mechanisms that govern the reinforcement are unclear, largely remaining unidentified and unmeasured. In this study, the assessment of the effect of geogrids on the roads that is reinforced granular fill layer over soft clay soil, section's ability to support before and after traffic loads were investigated using plate loading tests in situ. The results of the field tests show that geosynthetic reinforcement as is an effective method in reducing deformation and repairing granular fill layer overlying soft foundations

Keywords

• Field tests
• Weak soil
• Granular fill bed
• Geogrid
• Plate loading test

Kaynakça

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