РАСЧЕТ НАДЕЖНОСТИ СКЛОНА, АРМИРОВАННОГО АНКЕРАМИ, ПРИ СЕЙСМИЧЕСКОМ ВОЗДЕЙСТВИИ Reliability Analysis of Slope Reinforced by Anchors under Earthquake Action

Shuaihua Ye, Yilei Shi

Аннотация


Приведена модель расчета динамической устойчивости склона с использованием метода горизонтального среза, получено уравнение предельного состояния. Индекс надежности и вероятность отказа склона оценивались с использованием метода контрольных точек. Надежность и стабильность склона рассчитаны с помощью Geo-Studio методом конечных элементов. Результаты сопоставлены с результатами, полученными с помощью метода Монте-Карло. Выявлено, что надежность снижалась, а вероятность отказа значительно возрастала по мере увеличения пикового сейсмического ускорения. Нет определенного соответствия между вероятностью отказа и коэффициентом безопасности. Следовательно, предлагаемый метод расчета является разумным, и анализ надежности может лучше отражать фактическую устойчивость склона при сейсмическом воздействии.

Полный текст статьи публикуется в английской версии журнала
«Soil Mechanics and Foundation Engineering”, vol.59, No.4


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