Table 1 Scheme of disturbance creep test.
From: Mudstone creep experiment and nonlinear damage model study under cyclic disturbance load
Influence factor | Sample number | Confining pressure (σ/MPa) | Disturbance amplitude (Δσ/MPa) | Disturbance frequency (ƒ/Hz) |
|---|---|---|---|---|
Undisturbed | N1 | 3 | — | — |
Amplitude Frequency | N2 | 3 | 1.6 | 3 |
N3 | 3 | 3.2 | 3 | |
N4 | 3 | 4.8 | 3 | |
N5 | 3 | 3.2 | 1 | |
N6 | 3 | 3.2 | 5 |
