Research Article
Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content
Table 2
The mechanical properties of rock samples under different moisture content.
| Rock type | Moisture content | Shear strength/MPa | Cohesion/MPa | Internal friction angle/° |
| Sandstone | 1.27% | 64.95 | 21.68 | 31.93 | 1.85% | 45.01 | 15.54 | 29.20 | 1.91% | 33.97 | 14.73 | 29.14 | 2.16% | 30.14 | 13.06 | 29.16 | 2.24% | 30.10 | 12.65 | 28.82 | 2.29% | 30.04 | 12.64 | 28.62 | 2.27% | 29.96 | 12.40 | 28.88 |
| Mudstone | 1.97% | 15.44 | 5.95 | 28.18 | 3.41% | 9.38 | 4.98 | 27.20 | 4.59% | 8.01 | 4.60 | 26.19 | 4.84% | 7.75 | 4.36 | 26.14 | 4.97% | 8.03 | 4.27 | 26.57 |
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