Research Article
Research on Stability of an Open-Pit Mine Dump with Fiber Optic Monitoring
Table 7
Corresponding data of the strain of each optical fiber.
| Fiber no. | Fiber length (m) | Position with sudden change in the strain (m) | Strain in the place with sudden change (με) | Strain increment (με) |
| X11 | 0.667 | 0.59 | 1624 | 571 | X12 | 0.667 | 0.43 | 2028 | 917 | X13 | 0.667 | 0.36 | 2558 | 1236 | X14 | 0.667 | 0.32 | 2777 | 1497 | X15 | 0.667 | 0.44 | 2323 | 1170 | X16 | 0.667 | 0.61 | 1708 | 731 | X21 | 1.078 | 0.92 | 1042 | 346 | X22 | 1.078 | 0.69 | 1675 | 721 | X23 | 1.078 | 0.63 | 1991 | 971 | X24 | 1.078 | 0.64 | 1969 | 912 | X25 | 1.078 | 0.67 | 1910 | 952 | X26 | 1.078 | 0.87 | 1292 | 552 | Y11 | 2.0 | 0.21/1.75 | 2066/2195 | 892/994 | Y12 | 2.0 | 0.82/1.27 | 1772/1698 | 892/690 | Y21 | 2.0 | 0.81/1.20 | 1541/1321 | 661/424 | Y21 | 2.0 | — | — | — | Z1 | 1.694 | 0.46 | 695 | 309 | Z2 | 1.694 | 0.43 | 709 | 314 | Z3 | 1.694 | 0.85 | 885 | 338 | Z4 | 1.694 | 0.87 | 896 | 357 |
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