Strength to the cutting in discontinuities with different degrees of roughness
Abstract
In this research triaxial testings were done on artificial rocks made with a mortar (cement, sand and water) of different strength. Cylinders were made with and without a discontinuity orientated to 60° with regard to the horizontal axis and three different degrees of roughness, (polished flat, polished wavy and wavy). The mortar testing strength parameters were obtained and was analyzed the influence of the different roughness degrees by the Barton’s criterion, obtaining the roughness coefficient of the discontinuity.
Downloads
References
AYALA, Francisco J., Manual de Ingeniería de Taludes. Instituto Tecnológico Geominera de España ITGE, Madrid, España, 1987.
BARTON y CHOUBEY, A review of the Shear Strenght of filled discontinuities in rock, Ed.e. Broch, 1974.
CORREA A., Álvaro de la Cruz. Caracterización de Rocas ensayos de laboratorio. Universidad Nacional de Colombia, Sociedad Colombiana de Geotecnia, Bogotá. 2000.
HELIN, Fu. BAOCHEN, Liu. 2007. Application of Fractal Theory in Analyzing Character of Joints and Cracks inside a Rock. Pagina consultada el 7 de Noviembre del 2007. En: http://www.ejge.com/2001/Ppr0106/Abs0106.htm
HOEK E., BRAY J.W. Rock slope engineering, 3er Edic. IMM, London 1981.
HOEK E., BROWN E.T. Excavaciones Subterráneas en Roca. Editorial Mc. Graw-Hill Book, 1985.
HOEK, Evert., 2007. Practical Rock Engineering. Página consultada el 6 de Noviembre de 2007. En: http://www.rocscience.com/hoek/pdf/Practical_Rock_Engineering.pdf
INDRARATNA S.; Runjith P.G.; Gale W. Geotechnical and Geological Engineering. Volume 17, Number 3-4. 1999.
LOPEZ BARON, Angel M., MILLAN MONTEJO, Sebastián C y RINCON MORANTES, Jhon Fredy.; Parámetros de Resistencia de Rocas según Orientación y Rugosidad de las Discontinuidades; Bogotá, 2006, Trabajo de Grado (Ing. Civil). Universidad Militar Nueva Granada; Facultad de Ingeniería.
PATTON, F.D. Multiple modes of shear failure in rock. Proc. 1st Congr. Int. Soc. Rock Mech., Lisbon, 1966.
RAMÍREZ, Oyanguren P., DE LA CUADRA, Irizar l., LÍAN, Huerta R., GRIGALBO, Obeso E. Mecánica de rocas aplicada a la minería metálica subterránea. Instituto Tecnológico Geominera de España ITGE, Madrid, España, 1991.
SUÁREZ DÍAZ, Jaime. Deslizamientos y Estabilidad de Taludes en Zonas Tropicales. Edición UIS, Bucaramanga. ISBN 958-33-0800-5. 1998.
UNAL y UNVER, Characterization of Rock Joint surface degradation under Shear Loads. Int. J. Rock Mech. Min. Sci. Vol. 41, No. 3, 2004.
