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

<div>Monitoring curves from FBG soil pressure cells under different conditions: (a) soil pressure curves for the upper part; (b) soil pressure curves for the lower part.</div>

Advances in Civil Engineering

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Figure 20

Figure 20: Combined Application of Optical Fibers and CRLD Bolts to Monitor Deformation of a Pit-in-Pit Foundation 