Research Article

Mechanical Characteristics for Rocks under Different Paths and Unloading Rates under Confining Pressures

Table 1

Initial geostress condition of various rock samples.

PathsNumber
(MPa)(MPa)(MPa⋅s−1)(MPa⋅s−1)

Ix0-010201.520.050
x1-020265.220.050
x2-030301.100.050
y0-010201.520.10
y1-020265.220.10
y2-030301.100.10
z0-010201.520.50
z1-020265.220.50
z2-030301.100.50
b0-010201.521.00
b1-020265.221.00
b2-030301.101.00

IIx0-110201.520.05−0.05
x1-120265.220.05−0.05
x2-130301.100.05−0.05
y0-110201.520.1−0.1
y1-120265.220.1−0.1
y2-130301.100.1−0.1
z0-110201.520.5−0.5
z1-120265.220.5−0.5
z2-130301.100.5−0.5
b0-110201.521.0−1.0
b1-120265.221.0−1.0
b2-130301.101.0−1.0

IIIx0-210201.520.050.05
x1-220265.220.050.05
x2-230301.100.050.05
y0-210201.520.10.1
y1-220265.220.10.1
y2-230301.100.10.1
z0-210201.520.50.5
z1-220265.220.50.5
z2-230301.100.50.5
b0-210201.521.01.0
b1-220265.221.01.0
b2-230301.101.01.0