Documents disponibles écrits par cet auteur

A simplified analytical model for predicting the shear behaviour of regular triangular rock/concrete joints under constant normal stiffness / A. Haque in Géotechnique, Vol. 62 N° 2 (Fevrier 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 2 (Fevrier 2012) . - pp. 171 –176 Titre : A simplified analytical model for predicting the shear behaviour of regular triangular rock/concrete joints under constant normal stiffness Type de document : texte imprimé Auteurs : A. Haque, Auteur ; J. Kodikara, Auteur Année de publication : 2012 Article en page(s) : pp. 171 –176 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Soft  rocks  Numerical  modelling  Shear  strength  Piles  Rocks/rock  mechanics Résumé : In developing a shear strength model for rock joints, it is essential to understand the shear behaviour of idealised elastic asperities. In this paper, the shear behaviour of regular triangular elastic asperities subjected to constant normal stiffness (CNS) boundary conditions is examined for a range of Young's moduli of the rock. The results show that dilation of the joint decreases with a decrease in rock Young's modulus, because of the increased elastic deformation of asperities. Finally, a simplified analytical model for predicting the peak shear strength of regular triangular concrete/rock joints is developed, incorporating a non-dimensional equation for joint normal stiffness. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.8.T.018 [article] A simplified analytical model for predicting the shear behaviour of regular triangular rock/concrete joints under constant normal stiffness [texte imprimé] / A. Haque, Auteur ; J. Kodikara, Auteur . - 2012 . - pp. 171 –176. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 2 (Fevrier 2012) . - pp. 171 –176 Mots-clés : Soft  rocks  Numerical  modelling  Shear  strength  Piles  Rocks/rock  mechanics Résumé : In developing a shear strength model for rock joints, it is essential to understand the shear behaviour of idealised elastic asperities. In this paper, the shear behaviour of regular triangular elastic asperities subjected to constant normal stiffness (CNS) boundary conditions is examined for a range of Young's moduli of the rock. The results show that dilation of the joint decreases with a decrease in rock Young's modulus, because of the increased elastic deformation of asperities. Finally, a simplified analytical model for predicting the peak shear strength of regular triangular concrete/rock joints is developed, incorporating a non-dimensional equation for joint normal stiffness. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.8.T.018