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Bulletin of Engineering Geology and the Environment

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01.11.2023 | Original Paper

Effect of strength anisotropy on schist rocks and slope stability analysis

verfasst von: Mehmet Ozdemir, Sunay Beyhan, Kaan Erarslan

Erschienen in: Bulletin of Engineering Geology and the Environment | Ausgabe 11/2023

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Abstract

In engineering works such as open and underground mining operations, the anisotropic property of the rock plays an important role in stability. This feature is evaluated according to the results obtained from measurements taken perpendicular to the layer planes or at random angles. However, mechanical, physical and other properties of anisotropic rocks take different values according to the angle of the anisotropy plane with the vertical plane. For this reason, the effect of strength anisotropy should be examined in engineering studies. In this study, the effect of directionally changing the anisotropic properties of the metamorphic rock mass (greenschist and mica schist), which is thought to cause instability, on the slope stability at the copper mine site located in the Hanönü district of Kastamonu, Turkey, were investigated. In order to evaluate the effect, Generalised Hoek–Brown, Mohr–Coulomb, Anisotropic Linear and Snowden Anisotropic Linear failure criteria were used at different orientation angles. For this purpose, mechanical and physical tests were carried out on samples with orientation angles of 0°, 15°, 30°, 45°, 60°, 75° and 90°. The data obtained from the experimental studies were evaluated separately at the different orientation angles, the slope stability analyses were performed and the appropriate slope safety results were found for the site. In general, maximum slope safety result values at 60° and minimum at 0° were obtained. In addition, appropriate slope angle, width and height are suggested in line with the slope safety results obtained.

Vorheriger Artikel Comparison of artificial intelligence and multivariate regression methods in predicting the uniaxial compressive strength of rock during the specific resistivity monitoring

Nächster Artikel An evaluation on Barton-Bandis shear strength criterion for discontinuities in weak materials under low normal stresses

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Titel: Effect of strength anisotropy on schist rocks and slope stability analysis
verfasst von: Mehmet Ozdemir
Sunay Beyhan
Kaan Erarslan
Publikationsdatum: 01.11.2023
Verlag: Springer Berlin Heidelberg
Erschienen in: Bulletin of Engineering Geology and the Environment / Ausgabe 11/2023
Print ISSN: 1435-9529
Elektronische ISSN: 1435-9537
DOI: https://doi.org/10.1007/s10064-023-03441-8

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