The Residual Shear Strength of the Shaly and Sandy Facies of the Opalinus Clay
| Autor: | Maurizio Ziccarelli, Silvio B. Giger, Marco Rosone, Alessio Ferrari |
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| Přispěvatelé: | A. Ferrari and L. Laloui, Rosone, Marco, Ferrari, Alessio, Ziccarelli, Maurizio, Giger, Silvio B. |
| Rok vydání: | 2018 |
| Předmět: |
Settore ICAR/07 - Geotecnica
Effective stress 0211 other engineering and technologies 02 engineering and technology Geotechnical Engineering and Engineering Geology 010502 geochemistry & geophysics 01 natural sciences Residual strength Shear (geology) Mechanics of Materials Residual shear strength Facies Particle-size distribution Geotechnical engineering Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Springer Series in Geomechanics and Geoengineering ISBN: 9783319996691 |
| Popis: | The paper presents a comprehensive laboratory campaign carried out with the aim to asses the residual strength of the Opalinus Clay. Ring shear tests with vertical effective stress up to 1 MPa were performed on remoulded samples of two different facies of the Opalinus Clay. Test results show that the «Shaly» facies is characterized by a low range of variation of residual strength while the strength of the «Sandy» facies is very sensitive to the variation of grain size distribution. Microstructural analyses (SEM) suggest that the difference in the observed mechanical behavior of the two facies can be related to different particles arrangements along the shear surfaces. |
| Databáze: | OpenAIRE |
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