Table 7 Component matrix.

From: Study on the destruction law of physical and shear properties of soil in mining disturbance

Index

Component

1

2

3

50 kPa shear strength

0.896

− 0.316

0.101

cohesive force C

0.792

− 0.566

0.015

150 kPa shear strength

0.767

0.502

0.273

200 kPa shear strength

0.666

0.610

0.374

100 kPa shear strength

0.639

0.192

− 0.063

Internal friction angle

− 0.231

0.928

0.176

Dry unit weight data

− 0.104

0.706

− 0.333

Natural moisture content

− 0.324

− 0.366

0.709

Natural density data

0.443

− 0.028

− 0.645