ПОВЕДЕНИЕ ГЕОРЕШЕТКИ С L-ОБРАЗНЫМ КРЕПЛЕНИЕМ ПОД ДЕЙСТВИЕМ ВЫДЕРГИВАЮЩЕЙ НАГРУЗКИ Pullout Behavior of the L-shaped Anchorage of Geogrid under Static and Cyclic Loading

Ali Maleki, Arash Nayeri, Seyed Hamid Lajevardi, Laurent Briancon, Hamid Reza Saba

Аннотация


Представлены результаты лабораторных испытаний на выдергивание полимерной георешетки из полиэстера с ячейкой 30×30 мм с L-образным креплением в песчаном грунте при статическом и циклическом приложении нагрузки. Для выполнения экспериментальных работ авторами статьи был разработан специальный испытательный стенд в соответствии со стандартом ASTM D6706-01.
Оценивается влияние амплитуды нагрузки и число циклов. Показано, что выдергивающее усилие для георешетки всегда выше при циклическом, чем при статическом загружении. Увеличение амплитуды циклической нагрузки приводит к увеличению усилия выдергивания по сравнению со статическими условиями и увеличению совокупных перемещений. Увеличение числа повторяющихся
циклов нагружения уменьшает усилие выдергивания и запас прочности конструкции.

 

Полный текст статьи публикуется в английской версии журнала
«Soil Mechanics and Foundation Engineering” vol.59, No.3


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