Research Article
Geological Core Ground Reorientation Technology Application on In Situ Stress Measurement of an Over-Kilometer-Deep Shaft
Table 3
In situ stress results of the stress relief method.
| | No. | Depth (m) | Maximum principal stress σ1 | Intermediate principal stress σ2 | Minimum principal stress σ3 | | Magnitude (MPa) | Azimuth (°) | Dip (°) | Magnitude (MPa) | Azimuth (°) | Dip (°) | Magnitude (MPa) | Azimuth (°) | Dip (°) |
| | 1# | 655 | 29.67 | 24.06 | 14.17 | 11.53 | 285.31 | 31.09 | 2.74 | 135.31 | 55.15 | | 2# | 756 | 32.74 | 332.15 | 26.91 | 17.07 | 77.15 | 26.69 | 1.11 | 204.56 | 50.39 | | 3# | 765 | 32.27 | 322.84 | 24.47 | 17.67 | 70.18 | 33.22 | 0.58 | 204.04 | 46.62 | | 4# | 958 | 39.35 | 318.84 | 47.34 | 28.10 | 94.19 | 33.23 | 10.67 | 200.73 | 23.47 |
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