Nuevas funciones continuas para el cálculo del Slope Mass Rating (SMR): aplicación mediante un sistema de información geográfica a los taludes rocosos de una cantera
- R. Tomás 1
- M. Cano 12
- J.C. Cañaveras 1
- A. Cuenca 3
- J. Delgado 1
- A. Estévez 1
- J. A. Pina 1
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1
Universitat d'Alacant
info
- 2 Estructuras Aliben, S.A., C/ Médico Pedro Herrero, 2, 1º A, 03006 Alicante.
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3
Generalitat Valenciana
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ISSN: 0214-2708
Datum der Publikation: 2006
Ausgabe: 19
Nummer: 1-2
Seiten: 87-97
Art: Artikel
Andere Publikationen in: Revista de la Sociedad Geológica de España
Zusammenfassung
Slope Mass Rating (SMR, Romana, 1985) is a geomechanic index used to rock slope characterization. This index is obtained from basic RMR (Bieniawski, 1989) by means of a set of factors that take into account the parallelism between the discontinuities and slope directions (F1 ), discontinuity dip (F2 ), discontinuity and slope dip relation (F3 ), and the method employed for excavation (F4 ). RMR and SMR are obtained by means of characteristic values of the rock mass employing discrete functions. In this work we take a revision of the continuous functions proposed by Tom·s et al (2004) for SMR, introducing changes in F3 determination and hydraulic conditions dependent term (rG) and extending their use to wedge failure. These functions are applied to 47 rock slopes previously analysed by means of conventional methodology to do a comparative analysis of both indexes. Finally we characterize the rock slope of an abandoned open pit by means of both continuous and discrete SMR using a Geographical Information System (GIS). The results obtained applying continuous classification show that they provide SMR values higher than the discrete ones (about 10 points) allowing to discriminate between slopes with similar quality and eliminate the ambiguity resulting of their calculus.