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Rock bolt behaviour in stress-fractured ground: a FE analysis using zero-thickness interface elements and fracture-based constitutive laws

Author
Fornia, A.; Carol, I.; Garolera, D.; Kaiser, P. K.; Eberhardt, E.
Type of activity
Presentation of work at congresses
Name of edition
8th International Symposium on Ground Support in Mining and Underground Construction
Date of publication
2016
Presentation's date
2016-09
Book of congress proceedings
Proceedings of the 8th International Symposium on Ground Support in Mining and Underground Construction
First page
1
Last page
12
Repository
http://hdl.handle.net/2117/101506 Open in new window
Abstract
A finite element analysis using zero-thickness interface elements of the Goodman type, which incorporate a fracture mechanics-based mixed-mode constitutive law, is presented to study stress-induced cracking and spalling around a highly stressed tunnel. The effect of bolting on stress-fracturing and rock mass deformations (strains of the rock matrix and opening/sliding of the fractures) is considered by applying bolts at various spacing densities. The adopted tunnel excavation and far-field loadi...
Citation
Fornia, A., Carol, I., Garolera, D., Kaiser, P. K., Eberhardt, E. Rock bolt behaviour in stress-fractured ground: a FE analysis using zero-thickness interface elements and fracture-based constitutive laws. A: International Symposium on Ground Support in Mining and Underground Construction. "Proceedings of the 8th International Symposium on Ground Support in Mining and Underground Construction". 2016, p. 1-12.
Group of research
MECMAT - Mechanics of Materials

Participants