|
 |
| N° |
DIAM. |
Length |
Rock Type |
TBM Type |
Rock Support |
Year |
Country |
Owner |
| 69 |
TUNEL LOS BRONCES - CHILE
|
| |
4,5 |
7,65 |
Monzonite quartz, tourmalinic breccia
" Andesite, porphyry
" Monzonite quartz, |
TBM Double Shiel Compact + Back up |
1st phase lining by fixing of bolts and metallic panels |
2008 |
CHILE |
DRAGADOS-BESALCO S.A. |
| 67 |
TSUEN WAN DRAINAGE TUNNEL
|
| |
7,27 |
5,1 |
Volcanic tuffs and granodiorites |
Double Shield Universal TBM |
Tunnel lining by precast concrete segments, 25 cm thick |
2008 |
Hong Kong |
Drainage Services Department, |
| 64 |
CREVOLA TOCE III - NEW HEADRACE TUNNEL
|
| |
4,2 |
9154 |
Gneiss, mica schists, marbles and lime schists, dolomitic segments |
Double Shield TBM Compact |
Tunnel lining with steel ribs |
2008 |
ITALY |
ENEL SPA |
|

|