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УПРУГОПЛАСТИЧЕСКАЯ МОДЕЛЬ ДЛЯ НЕНАСЫЩЕННЫХ ГРУНТОВ С УЧЕТОМ НАПРЯЖЕНИЙ ВСАСЫВАНИЯ An elastoplastic constitutive model for unsaturated soils using suction stress variable

Fengxi Zhou, Yanping Shao, Musa Abdallah Ibrahim Ahmed

Аннотация


Предлагается для водоненасыщенных грунтов учитывать напряжения всасывания при определении эффективных напряжений и использовать новое уравнение дилатансии. В качестве параметров напряжения функции пластического потенциала используются среднее эффективное напряжение и обобщенное напряжение сдвига. Получена упругопластическая модель для насыщенного грунта с использованием поверхности текучести модифицированной модели Cam-Clay и неассоциированного
закона течения. Кривые напряжение–деформация, построенные с помощью модели, сравниваются с экспериментальными результатами для различных траекторий нагружения. Результаты подтвердили адекватность предлагаемой модели.


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Литература


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