Rock Mech Rock Eng (2017) 50:2227–2234 DOI 10.1007/s00603-017-1224-0 TECHNICAL NOTE Simultaneous Identiﬁcation of Rock Strength and Fracture Properties Via Scratch Test 1,2,3 3 1,2 1,2 • • • Xianqun He Chaoshui Xu Kang Peng Gun Huang Received: 4 October 2016 / Accepted: 15 April 2017 / Published online: 25 April 2017 Springer-Verlag Wien 2017 Keywords Rock cutting Failure mode Uniaxial 1 Introduction compressive strength Fracture toughness Material properties are essential inputs for successful List of symbols engineering applications in different industries and areas, A Contact area between the cutting tool and the rock and thus, a number of methods have been proposed to bearing the load, A = wd/cos a measure different properties for different materials. B Dimensionless geometric factor Some common measured mechanical properties include d Depth of cut the yield strength, compressive strength and fracture d Critical transition depth toughness. In rock engineering, for instance, the uniaxial F Mean tangential cutting force measured from scratch compressive strength (UCS) and the opening mode test (mode I) fracture toughness, K , are the two frequently IC F Mean normal cutting force measured from scratch employed parameters in geo-structural design and con- test struction. Accordingly, the procedures
Rock Mechanics and Rock Engineering – Springer Journals
Published: Apr 25, 2017
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