Madrid-Segovia, Spain

GUADARRAMA HIGH SPEED RAILWAY TUNNELS

Client

ADIF (Spanish Railway Infrastructure Administrator)

Year

2009

Construction budget

EUR 512 million

Key facts

New rail access to north and north-western Spain comprising a 30 km twin-tube tunnel. TYPSA worked on the 15 km in Lot 1 (south portal, west tunnel)

Lot 1: Double-shield TBM excavated tunnel 15 km in length. Maximum overburden of 992 m, with cross galleries every 250 m.

Excavation cross-section: 9.200 mm

Tunnel lining: segmental ring 8.500 mm inner diameter

Slab track

Geology: Glandular orthogneiss, meta-sediments, granitic plutonic rock. Several sets of faults.

Services

Technical support and construction works supervision.