ТРЕХМЕРНЫЙ МКЭ-АНАЛИЗ УСТОЙЧИВОСТИ ГРУНТОВОЙ ПОДПОРНОЙ СТЕНКИ, АРМИРОВАННОЙ ГЕОРЕШЕТКОЙ, ПРИ ДИНАМИЧЕСКОЙ УДАРНОЙ НАГРУЗКЕ 3D SIMULATION OF GEOGRID REINFRORCED SOIL WALL UNDER DYNAMIC IMPACT LOAD

Toufik Karech, H. Zeghina

Аннотация


Армирование грунта георешеткой — эффективный геотехнический метод повышения несущей способности грунтов, подвергающихся возрастающим транспортным нагрузкам. Однако внезапные ударные воздействия, например, в результате аварий на строительной площадке, могут нарушить устойчивость геотехнических сооружений. Изучено влияние вертикальной ударной нагрузки на устойчивость грунтовой подпорной стенки, армированной георешеткой, с использованием метода конечных элементов в трехмерной постановке. Анализ выполнен на примере армированной грунтовой стенки на въезде в промышленную зону Сиди-Абдалла (Алжир). Результаты численного моделирования представлены графически; нагрузки выражены через ускорения и показаны соответствующие им перемещения элементов стенки. Также оценивается влияние динамических ударных нагрузок на общий коэффициент запаса устойчивости сооружения.


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


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