During construction of underground openings, such as: tunnels, shafts and caverns stress concentrations increase near these openings and instability problem occur in these underground excavations. Tests on thick-walled hollow cylinders of rock are a relatively easy, economical and realistic means to better understand stability and the mechanisms associated to underground openings failure. The mode of rupture observed in the tests was a pair of radial rupture planes. These rupture planes correspond to a compacting failure mechanism, because, these planes are perpendicular to major principal stress (tangential stress). This kind of rupture usually occurs in very porous material.
Hoseini, M. (2008). Design and Construction of an Experimental Apparatus for Investigating Stability of Underground Excavation. Journal of Mining Engineering, 3(6), 19-26.
MLA
Hoseini, M. "Design and Construction of an Experimental Apparatus for Investigating Stability of Underground Excavation", Journal of Mining Engineering, 3, 6, 2008, 19-26.
HARVARD
Hoseini M. (2008). 'Design and Construction of an Experimental Apparatus for Investigating Stability of Underground Excavation', Journal of Mining Engineering, 3(6), pp. 19-26.
CHICAGO
M. Hoseini, "Design and Construction of an Experimental Apparatus for Investigating Stability of Underground Excavation," Journal of Mining Engineering, 3 6 (2008): 19-26,
VANCOUVER
Hoseini M. Design and Construction of an Experimental Apparatus for Investigating Stability of Underground Excavation. IRJME. 2008;3(6):19-26 (In Persian).
