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A Challenging GPR Investigation to Assess the State of Damage of a Water Tunnel
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 22nd EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, Mar 2009, cp-157-00038
Abstract
The GPR method was used to assess the conditions of a water tunnel built to force a river to<br>underpass the road running along the Valganna valley, 60km north of Milan (Italy). The tunnel is<br>concrete lined and has a semicircular section with a diameter that varies between 3 and 4m. The most<br>damaged section of the tunnel runs parallel to the valley for about 300m before intersecting the road<br>where the valley makes a pronounced left turn.