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The influence of subjective factors on the accuracy of graphical constructions to interpret the preconsolidation pressure in IL-testsстатья
- Авторы: Matveev V.V., Shanina V.V.
- Сборник: Proceedings of 3rd European Regional Conference of IAEG / Athens / Greece / 6-10 october 2021
- Том: 2
- Год издания: 2021
- Место издания: National Group of Greece of IAEG Athens, Greece
- Первая страница: 10
- Последняя страница: 17
- Аннотация: This article discusses various factors that affect the accuracy of determining the preconsolidation pressure using graphical methods in increment loading (IL) tests. The study aims to identify subjective factors in graphical constructions and assess their impact on the accuracy of methods. The tests were performed on ground pastes of a fluid consistency with a given preconsolidation pressure. Clay slurries were made from moraine and fluvioglacial soils selected in Salaryevo (Moscow, Russia). A series of 12 oedometric IL-tests with loading, unloading, reloading and unloading was carried out. Then the obtained data were processed by nine methods (Casagrande, Pacheco Silva, Burland, Boone, bi-logarithmic, Becker, Nagaraj & Shrinivasa, Senol & Saglamer, Wang & Frost), the set and received values were compared, after that, the methods were ranked according to their accuracy. In the process of data processing, the influence of graphical constructions on the obtained result was evaluated. It turned out that almost all methods have approximately the same accuracy, and the discretisation makes the most significant contribution to the accuracy of measurements of steps. From the obtained results, it is recommended to reduce the steps or approximate the obtained points with analytical curves.
- Добавил в систему: Шанина Виолетта Валерьевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Matveev_Shanina_2021.pdf | 1,9 МБ | 11 октября 2021 [Violetta] |