Fig. 8

Pcpv every 12 h of the three components a Z, b NS and c EW) of each station (LGT101: green, LGT102 blue, and LGT103 yellow). Red dashed lines separate the three time intervals corresponding to three different kind of workings (i) piling work, ii) Embankment consolidation, i.e., parapet breakdown, excavation, embankment arrangement and foot wall consolidation (Arno river side), and iii) ordinary activities, i.e., backfill and restoring of the original condition, ordinary construction activities)