Volume Loss Assessment with MT-InSAR during Tunnel Construction in the City of Naples (Italy)

The construction of tunnels in urban areas can affect the nearby existing infrastructures and buildings, as shallow excavations induce movements up to ground surface. An important parameter be monitored during excavation is volume loss, which plays a crucial role determining at InSAR satellite monitoring has potential detect millimetric scale on vast area for tunneling applications. In present study, Multi-Temporal (MT-InSAR) technique, based persistent scattering method, used retrieve vertical displacements induced by twin metro line City Naples (Italy). Here, loss obtained fitting Gaussian curve settlement data first tunnel. latter then predict second about one year later compared MT-InSAR data. These show typical shape profile, confirming empirical distribution capability displacements. Therefore, feed algorithms improve prediction tunneling-induced