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Title:
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Influence of suction on the mechanical behaviour of rock joints under shear loading
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Author:
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Zandarín, Maria Teresa; Alonso Pérez de Agreda, Eduardo; Olivella Pastallé, Sebastià
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
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Abstract:
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A direct shear equipment was modified for testing rock joints with suction control. Modification includes a vapour forced convection circuit connected to the air chamber of shear cell for controlling relative humidity during testing. The main features of the device are described and test program procedures are presented. In addition the results of tests conducted under different suction, net normal stress and asperity roughness angle conditions are presented and analyzed. Finally, new expressions of resistance parameters of hyperbolic failure envelope are proposed incorporating the effect of suction and asperity roughness angle. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
-Rock mechanics
-Test program
-Rock joint
-Shear cells
-Shear loadings
-Air chambers
-Direct shear
-Failure envelope
-Mechanical behaviour
-Normal stress
-Resistance parameters
-Mecànica de roques |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Taylor & Francis
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