Experimental Investigations on Rheological Properties of Mudstone in Kilometer-Deep Mine

Table 8

Rheological strains of mudstone rheological test specimen.

Stress environment	Type of rheological test	Lateral rheology (‰)	Axial rheology (‰)	Maximum deviating stress (σ1−σ3) (MPa)
Period affected by driving	A—unloading confining pressure with axial compression rheological test	0.492	0.24	63
Period affected by stable driving	A—unloading confining pressure with constant axial pressure rheological test	0.688	0.671	55
Period affected by mining	B—uniaxial rheological test	—	1.849	40