Undrained Young’s Modulus of Fine-Grained Soils
| Autor: | N. S. Kontopoulos, C. A. Jones, John T. Germaine, Brendan Casey, Naeem O. Abdulhadi |
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| Rok vydání: | 2016 |
| Předmět: |
Settlement (structural)
0211 other engineering and technologies Modulus Young's modulus 02 engineering and technology Plasticity 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Stress (mechanics) symbols.namesake Soil water Shear stress symbols Geotechnical engineering Soil composition Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Journal of Geotechnical and Geoenvironmental Engineering. 142 |
| ISSN: | 1943-5606 1090-0241 |
| DOI: | 10.1061/(asce)gt.1943-5606.0001382 |
| Popis: | A reliable estimate of secant undrained Young’s modulus (Eu) is necessary to quantify the undrained settlement of structures underlain by fine-grained soils. A large number of CK0UC triaxial tests have been carried out on eight resedimented clays to establish the effects of soil composition, applied shear stress, overconsolidation, and vertical consolidation stress on the magnitude of Eu. These tests were performed at effective stresses ranging from 0.02 to 100 MPa. Low plasticity soils tend to have a higher Eu compared with high plasticity soils. The effect of composition diminishes as the applied shear stress increases. Overconsolidated (OC) soil has a higher undrained modulus than normally consolidated (NC) soil, though a change in the overconsolidation ratio of OC soil does not have a significant effect on Eu. Regression analyses performed on the experimental data define relationships for Eu as a function of stress level for both NC and OC soil. |
| Databáze: | OpenAIRE |
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