СТОХАСТИЧЕСКИЙ ПОДХОД К АНАЛИЗУ УСТОЙЧИВОСТИ СКЛОНА С УЧЕТОМ РАЗУПРОЧНЕНИЯ ГРУНТА В ЗОНЕ КОНТАКТА СО СКАЛЬНЫМИ ПОРОДАМИ A Stochastic Approach to Soil-rock Slope Stability Analysis Considering Soil Softening of Contact Zone

Shunqing Liu, Guojun Cai, Baoning Hong, Pengming Jiang, Aizhao Zhou, Ke Sun

Аннотация


Статья посвящена совершенствованию методов расчета коэффициента устойчивости оползнеопасных откосов и склонов, содержащих скальные включения. Для более точного анализа устойчивости таких откосов с зонами разупрочнения на контактах грунт–скальные включения предложен  стохастический подход, учитывающий геометрию блоков горных пород и изменчивость их размеров. Предложены модели склонов с содержанием каменных блоков от 0 до 60%. Выполнено более 120 2D анализов устойчивости склонов грунт–порода. Рассчитанные результаты были сопоставлены с полученными без учета зон разупрочнения на контактах. Обсуждается влияние блоков скальной породы и зон контактного разупрочнения на коэффициенты безопасности и поверхности разрушения. По результатам работы предлагается при практическом проектировании рассматривать грунтово-скальные массивы на склонах как гетерогенные материалы и использовать стохастический подход.

Полный текст статьи публикуется в английской версии журнала
«Soil Mechanics and Foundation Engineering” vol.58, No.5


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