Research Article
Study on Construction Influence of Shield Tunnel of Urban Rail Transit on Large-Section Mining Tunnel
Table 4
Results of the direct shear test.
| Vertical stress (kPa) | Shear stress (kPa) | Displacement (0.01 mm) | Fitting equation | Internal friction angle (°) | Cohesion (kPa) |
| 100 | 53.3216 | 30.4 | y = 0.4507x + 5.3372 | 24.26 | 5.3372 | 150 | 72.2648 | 41.2 | 200 | 90.6818 | 51.7 | 300 | 143.1264 | 81.6 |
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