ОСОБЕННОСТИ КОНТАКТНОГО ВЗАИМОДЕЙСТВИЯ ГЕОРЕШЕТКИ С КРУПНОЗЕРНИСТЫМ ЗАПОЛНИТЕЛЕМ Interface Behaviour of Geogrid embedded in Coarse Aggregate having Different Gradation

Soumen Naskar, Awdhesh Kumar Choudhary, Anil Kumar Choudhary

Аннотация


Целостность конструкций из армированного грунта во многом зависит от особенностей взаимодействия на контакте геосинтетического материала с заполнителем. В лабораторных условиях исследовано поведение георешетки, уложенной в крупнозернистый заполнитель. Изучено влияние размера фракций заполнителя, ширины двуосно-ориентированной георешетки и размера ее ячеек на величину выдергивающего усилия. Результаты показали, что максимальное сопротивление выдергиванию (1,74 кН) наблюдалось при использовании заполнителя с гранулометрическими характеристиками P40R20 и P10R4.75. При увеличении ширины георешетки от 150 до 300 мм пиковое сопротивление выдерги-
ванию возрастает на 60–90%. Отмечено снижение пикового сопротивления выдергиванию на 14–22% при размере ячеек георешетки (76 × 76 мм) по сравнению с более мелкими ячейками (38 × 38 мм). Рассмотрено влияние различных параметров на характеристики зоны контакта георешетки с крупнозернистым заполнителем.

Полный текст статьи публикуется в английской версии журнала
«Soil Mechanics and Foundation Engineering”, vol.63, No.5


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