- Image 1 of 12 - Collection tanks: dimansions

- Image 2 of 12 - Collection tanks: constructive phases

- Image 3 of 12 - Collection tanks: reinforcement detail

- Image 4 of 12 - Tunnel booster - general dimensions

- Image 5 of 12 - Tunnel booster - metal carpentry

- Image 6 of 12 - Tunnel booster - launchment phases and lifting structure design

- Image 7 of 12 - Stuck Tbm - photo

- Image 8 of 12 - Stuck Tbm - front view

- Image 9 of 12 - Stuck Tbm - lateral view

- Image 10 of 12 - Fake tunnel segments lifting - photo

- Image 11 of 12 - Fake tunnel segments lifting - metal carpentry

- Image 12 of 12 - Fake tunnel segments lifting - segment connection structure