Combined Application of Optical Fibers and CRLD Bolts to Monitor Deformation of a Pit-in-Pit Foundation

<div>Horizontal strain curves measured by optical inclinometer tubes for the outer pit under different conditions: (a) X11 tube; (b) X12 tube; (c) X13 tube; (d) X14 tube; (e) X15 tube; (f) X16 tube; (g) X17 tube; (h) X18 tube.</div>

Advances in Civil Engineering

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Figure 14

Figure 14: Combined Application of Optical Fibers and CRLD Bolts to Monitor Deformation of a Pit-in-Pit Foundation 