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le P, Desrues J, Raynaud S. Experimental characterisation of the localization phenomenon inside a Vosges sandstone in a triaxial cell. Int J Rock Mech Min Sci 2000。37:1223–37.[21] Fang Z, Harrison JP. A mechanical degradation index for rock. Int J Rock Mech Min Sci 2001。38:1193–9. [22] Trapezdnikov LP. Temperature crack resistance in massive concrete. Moscow: Energoatomizdat。 1986 [in Russian]. [23] Efimov VP. The rock strength in different tension conditions. J. Min. Sci. 2009。45:569–75. [24] You M, Chen X, Su C. Brazilian strengths of discs and rings in dry and saturated. Chin J Rock Mech Eng 2011。30:464–72 [in Chinese]. [25] Carter BJ, Duncan SEJ, Lajtai EZ. Fitting strength criteria to intact rock. Geotech Geol Eng 1991。9:73–81. [26] Ramsey JM. Chester MF. Hybrid fracture and the transition from extension fracture to shear fracture. Nature 2004。428:63–6. [27] Bobich JK. Experimental analysis of the extension to shear fracture transition in Berea sandstone. Master thesis, Texas Aamp。M University。 2005. [28] You M. Strength and failure of rock due to hydraulic fracture. In: Xie F, editor. Rock stress and earthquake。 2010. p. 185–8. [29] Jaeger JC, Cook NGW, Zimmerman RW. Fundamentals of rock mechanics. New York: WileyBlackwell。 2007. [30] Mogi K. On the pressure dependency of strength of rocks and the Coulomb fracture criterion. Tectonophysics 1974。21:273–85. [31] Savage JC, Byerlee JD, Lockner DA. Is internal friction friction? Geophys Res Lett 1996。23:487–90. [32] You MQ. Characteristics of exponential strength criterion of rock in principal stress space. Chin J Rock Mech Eng 2009。28:1541–51 [in Chinese]. [33] Takahashi M, Koide H. Effect of the intermediate principal stress on strength and deformation behavior of sedimentary rocks at the depth shallower than 2000 m. In: Maury V, Fourmaintraux D, editors. Rock at great depth, 1. Rotterdam: Balkema。 1989. p. 19–26. [34] Haimson B, Chang C. A new true triaxial cell for testing mechanical properties of rock, and its use to determine rock strength and deformability of westerly granite. Int J Rock Mech Min Sci 2000。37:285–96