
Figure 1
Non-linear stress–strain characteristics: Es – secant modulus, Et – tangent modulus.

Figure 2
Comparison of the G modulus degradation function

Figure 3
RC/TS apparatus scheme.

Figure 4
The granulometric composition of the studied soils.
Table 1
Parameters of tested soils.
| Soil | Gs [-] | d50[mm] | Ip | Cu[-] | e [-] | ρ [kg/m3] |
|---|---|---|---|---|---|---|
| Sandy silt saSi | 2.66 | 0.047 | 0.11 | 17.1 | 0.67 | 1870 |
| Medium sand MSa (1) | 2.65 | 0.33 | - | 2.6 | 0.42 | 1860 |
| Medium sand MSa (2) | 2.65 | 0.33 | - | 4.0 | 0.37 | 1930 |
Table 2
Parameters of tested samples.
| Sample | Soil | Diameter, mm | Height, mm | Cell pressure, kPa | Maximum angle, mrad |
|---|---|---|---|---|---|
| S3057 | Sandy silt saSi | 70.2 | 141.4 | 100–300 | 17.2 |
| S5919 | Medium sand MSa (1) | 70.0 | 143.1 | 50–200 | 2.2 |
| S3935 | Medium sand MSa (2) | 72.8 | 143.2 | 50–400 | 1.3 |

Figure 5
The results of the RC tests for sample S3057.

Figure 6
The results of the RC tests for sample S5919.

Figure 7
The results of the RC tests for sample S3935.

Figure 8
The results of the TS test of sample S3935.

Figure 9
The results of the TS test of sample S3935.

Figure 10
Results of TS analysis – sample S3057.

Figure 11
Exemplary discretisation of sample S3057.

Figure 12
Exemplary results of back analysis of sample S3057.

Figure 13
The results of RC/TS analyses of the sample S3057.

Figure 14
The results of RC/TS analyses of the sample S5919.

Figure 15
The results of RC/TS analyses of the sample S3935.