Numerical Simulation of Bedrock Sagging Sinkholes in Strain-Softening Rock Induced by Embankment Construction

Table 4

Comparison between Hoek–Brown criterion and Mohr–Coulomb criterion.

Samples		Intact rock	Rock mass
UCS (MPa)	Laboratory measurements	120	88
	Estimated by Hoek–Brown	120	62
	Estimated by Mohr–Coulomb	111	72
σti (MPa)	Laboratory measurements	11	3.5
	Estimated by Hoek–Brown	10	4.0
	Estimated by Mohr–Coulomb	19	16