Seismic Characterization of Tunnel Boring Machine Activity

Signal and Noise Spectra at AQ2 and AQ9

	Station AQ2
V	N	E

	Station QA9
V	N	E

Introduction | Spectrograms | Signal and Noise Spectra | TBM Signal Attentuation
Frequency-Wavenumber Analysis of the Mini-Array | Acoustic Resonances | Conclusions