Influence of Base Rock Deterioration on Tunnel Bottom Structure Damage under Train Excitation

<div>Schematic diagram of the installation of fiber grating water-earth pressures sensor: (a) fiber grating water pressure sensor; (b) fiber grating water pressure sensor; (c) fiber grating earth pressure; (d) fiber grating earth pressure.</div>

Advances in Civil Engineering

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Figure 5

Figure 5: Influence of Base Rock Deterioration on Tunnel Bottom Structure Damage under Train Excitation 