Transcript Main TBM Projects in Spain

Main TBM Projects in Spain
MAIN TBM PROJECTS IN SPAIN
Abdalajis Tunnels (9 Km) 2 TBMs
Pajares Tunnels (25 Km) 5 TBMs
Tunnel del Perthus (8 Km)
San Pedro Tunnels (8 Km) 2 TBMs
Guadarrama Tunnels (29 Km) 4 TBMs
Line 9 (Barcelona Metro) 3 TBMs
MINOVA HAD DONE ITS MAIN INJECTION
WORKS IN THESE PROJECTS AND IN
MORE THAN 70 TUNNELS.
ABDALAJIS TUNNELS (MÁLAGA)
 Lenght = 9 Km
 Drilled by 2 TBMs double shield.
 The geology was clays bitominous, calcite,
sandstones...sedimentary rocks
 They had a lot of problems with fails, no
competent ground, methane, cavities, high
water ingress.
 It was the main project in Minova
 Consume of Geofoam =
1.200 T Sacyr TBM+ 1.040 T Dragados TBM
 Consume of Geoflex =183 T in both TBMs
PAJARES TUNNELS (LEÓNASTURIAS)
PAJARES TUNNELS (LEÓNASTURIAS)
Total Length = 25 Km
Drilled by 5 TBMs. 1 Double Shield (Lote 2)
and 4 simple close shield.
The geology is very variable: calcite,
quartzstones, sandstones, clays, coal... with
a lot of fails.
The main problems are fails, karsts in
calcites, quartz fracturated with a lot of
water, very soft clays and cavities.
Consume of Geofoam at the moment.
Lote 1 = 250 T
Lote 2 = 300 T
Lote 3 = 1.030 T
Lote 4 = 720 T
TUNNEL DEL PERTHUS (La
Jonquera, border Spain-France)
Total Length = 7 Km
Drilled by 2 TBMs. 1 Double Shield
The geology is very variable: granite,
quartzstones, sandstones, clays, with a lot of
fails.
The main problems are fails, very soft clays
and cavities karsts in calcites, quartz
fracturated with a lot of water.
Consume of Geofoam.
1.166 T
SAN PEDRO TUNNELS (MADRID)
Length = 8 Km
Drilled by 2 open shield TBMs at the
beginning. The other side is drilled by
blasting methods.
One TBM was atrapped and they have
finished the drilling it by blasting method.
Just one TBM could drill all the 8 Km.
The geology are mainly plutonic and
filonianic rocks but they are very
meteorizated and have a lot of fails
The main problems are fails and soft
grounds. Not very much water ingress
Consume of Geofoam = 969 T
Consume of Geoflex = 63 T
GUADARRAMA TUNNELS (MADRIDSEGOVIA)
Lenght = 29,5 Km
Drilled by 4 TBMs with double shield, 2
in each side of the tunnels.
The geology was mainly granite and
plutonic rocks
They had a lot of problems with fails
Consume of Geofoam = 262 T.
Consume of Geoflex = 6 T.
LINE 9 (Barcelona Metro)
Length = 8 Km
Drilled by 3 TBMs. 1 Mix (NFM)and 2
simple close shield.
The geology is mainly granite, granite
meteorizated, sands, clays...
The main problems are fails, cavities,
meteorizated granite very soft, sands
with high freatic level and thermal
water.
Consume of Geofoam = 471 T
Consume of Geoflex = 63 T