Coupling Effect of Creep Deformation and Prestress Loss of Anchored Jointed Rock

Table 1

Mechanical parameters of test piece.

Specimen parameters	Mechanical parameters
	Uniaxial compressive strength (MPa)	Elastic modulus (GPa)	Poisson’s ratio	Cohesion (MPa)	Internal friction angle (°)
Average value	15.9	2.10	0.19	7.12	28.8