000165137 001__ 165137
000165137 005__ 20251212165958.0
000165137 0247_ $$2doi$$a10.1016/j.jrmge.2024.11.024
000165137 0248_ $$2sideral$$a146579
000165137 037__ $$aART-2025-146579
000165137 041__ $$aeng
000165137 100__ $$aÚcar, Roberto
000165137 245__ $$aEstimating rock strength parameters across varied failure criteria: Application of spreadsheet and R-based orthogonal regression to triaxial test data
000165137 260__ $$c2025
000165137 5060_ $$aAccess copy available to the general public$$fUnrestricted
000165137 5203_ $$aTriaxial tests, a staple in rock engineering, are labor-intensive, sample-demanding, and costly, making their optimization highly advantageous. These tests are essential for characterizing rock strength, and by adopting a failure criterion, they allow for the derivation of criterion parameters through regression, facilitating their integration into modeling programs. In this study, we introduce the application of an underutilized statistical techniquedorthogonal regressiond well-suited for analyzing triaxial test data. Additionally, we present an innovation in this technique by minimizing the Euclidean distance while incorporating orthogonality between vectors as a constraint, for the case of orthogonal linear regression. Also, we consider the Modified Least Squares method. We exemplify this approach by developing the necessary equations to apply the Mohr-Coulomb, Murrell, Hoek-Brown, and Úcar criteria, and implement these equations in both spreadsheet calculations and R scripts. Finally, we demonstrate the technique's application using five datasets of varied lithologies from specialized literature, showcasing its versatility and effectiveness.
000165137 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E32-23R
000165137 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000165137 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165137 700__ $$0(orcid)0000-0001-5091-9398$$aArlegui, Luis$$uUniversidad de Zaragoza
000165137 700__ $$aBelandria, Norly
000165137 700__ $$aTorrijo, Francisco
000165137 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000165137 773__ $$g17, 8 (2025), 4685-4699$$tJournal of Rock Mechanics and Geotechnical Engineering$$x1674-7755
000165137 8564_ $$s1770128$$uhttps://zaguan.unizar.es/record/165137/files/texto_completo.pdf$$yVersión publicada
000165137 8564_ $$s2634799$$uhttps://zaguan.unizar.es/record/165137/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165137 909CO $$ooai:zaguan.unizar.es:165137$$particulos$$pdriver
000165137 951__ $$a2025-12-12-14:43:30
000165137 980__ $$aARTICLE