1. ASTM (1986) Standard test method of unconfined compressive strength of intact rock core specimens. D2938
2. ASTM (2001a) 08 Standard test method for splitting tensile strength of intact rock core specimens. D3967. 95(a)
3. ASTM (2001b) Standard method for determination of the point load strength index of rock. ASTM Standards on Disc 04.08. Designation D5731
4. ASTM (2010) Standard test method for compressive strength and elastic moduli of intact rock core specimens under varying states of stress and temperatures D7012
5. Barla M, Camusso M, Aiassa S (2006) Analysis of jacking forces during microtunnelling in limestone. Tunn Undergr Space Technol 21:668–683