f Lessons from a multi-source multi-component seismics to investigate a tunnel-site

A large engineering project is currently underway in Netherlands to build a tunnel west of Rotterdam under the Meuse river. It is using, for the first time in The Netherlands, the technology of drilling and laying the tubes simultaneously. In this context, test areas have been made available on both sides of the river to carry out a series of eivilengineering, geo-technical and geophysical investigations.