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).
