Szczegóły publikacji
Opis bibliograficzny
Linear and non-linear interpretation of rock strength tests for Hoek-Brown $m_{i}$ constant determination / P. MAŁKOWSKI, Z. NIEDBALSKI // W: New challenges in rock mechanics and rock engineering : proceedings of The ISRM Rock mechanics symposium 2024 : EUROCK 2024 : 15–19 July 2024, Alicante, Spain / ed. by Roberto Tomás, [et al.]. — Abingdon ; Boca Raton : CRC Press/Balkema : Taylor & Francis Group, cop. 2024. — Dod ISBN: 978-1-032-55145-6. — ISBN: 978-1-032-55144-9; e-ISBN: 978-1-003-42923-4. — S. 206–211. — Bibliogr. s. 211, Abstr.
Autorzy (2)
Dane bibliometryczne
| ID BaDAP | 159137 |
|---|---|
| Data dodania do BaDAP | 2025-04-11 |
| DOI | 10.1201/9781003429234-25 |
| Rok publikacji | 2024 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawcy | CRC Press / Balkema, Taylor & Francis Group |
Abstract
Hoek-Brown failure criterion is one of the most widely used failure criterion for rocks in the world. For its use, the mi empirical parameter for a specific rock type is needed. To determine the mi constant, a triaxial test is recommended, which gives a linear relationship σ1-σ3. However, the full stress path for every rock starts with uniaxial tension and this gives a nonlinear envelope. 55 series of tests are carried out for 4 rock types: sandstone, clay stone, limestone and conglomerate – to show what is the difference between the results of the mi determination, using two different approaches. The analysis of the results shows that the consistency with the regression models developed by researchers is higher if using the second set of results – with average tensile strength. So, this approach allows to determine the mi parameter more precisely for every tested type of rock.
