Beyond Standardization: Accounting for Gripping System Effects to Improve Geosynthetic Interface Characterization

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The research focuses on the critical role of accurately characterizing geosynthetic interface shear friction to prevent structural failures. It highlights the importance of determining interface friction angles and adhesion through standardized laboratory tests. Factors such as specimen gripping systems significantly influence test results, potentially leading to unsafe and costly design outcomes. The study investigates how different gripping systems affect shear strength at the geosynthetic/geosynthetic interface, aiming to enhance understanding for better design practices.