PRODUCTS
Hardrock and Boulder TBM
Cutter heads can be chosen from three types, flat type, semi-dome type and dome type depending on ground conditions and boulder or rock configulation.
Disc cutters can be chosen from two types, chip insert type and quenched type depending on ground conditions.
We have a delivery record of manufacturing with a maximum diameter of 10.82 m TBM.
⌀8.78m The Dover Channel Undersea Railroad Tunnel T2
| Year of delivery / Place of delivery | 1988, 1989 / France |
| Construction name | The Dover Channel Undersea Railroad Tunnel T2 The Dover Channel Undersea Railroad Tunnel T3 |
| Owner name | EURO TUNNEL |
| Contractor name | TML |
| Excavation distance | 20,010m 18,858m |
| Features | Vacuum erector |
⌀2.97m Koishiwara Dam Headrace Facility Construction
| Year of delivery / Place of delivery | 2017 / Fukuoka Prefecture |
| Construction name | Koishiwara Dam Headrace Facility Construction |
| Owner name | Japan Water Agency |
| Contractor name | Taisei Corporation |
| Excavation distance | 10,795m |
| Features | Design water pressure 2.0Mpa, oil backup system |
⌀6.88m East-West Transmission Cable Tunnel Contract EW1
| Year of delivery / Place of delivery | 2014 / Singapore |
| Construction name | East-West Transmission Cable Tunnel Contract EW1 |
| Owner name | SP PowerAssets Limited |
| Contractor name | Obayashi Corporation |
| Excavation distance | 3,018m |
| Features | Delivered full back-up system |
⌀10.82m Fushimi Tunnel Construction
| Year of delivery / Place of delivery | 2004 / Kyoto Prefecture |
| Construction name | Fushimi Tunnel Construction |
| Owner name | Hanshin Expressway Public Corporation |
| Contractor name | Obayashi / Sato Kogyo / Seibu Construction JV |
| Excavation distance | 1,704m |
| Features | Slurry TBM for large-diameter hard rocks and boulders |