TEPCO completes Trans-Bay tunnel, pipelay next

Tokyo Electric Power Co. has completed excavation of a tunnel under central Tokyo Bay and is ready to lay the Trans-Bay Gas Pipeline through it, linking the LNG receiving terminal at Futtsu thermal power station in Futtsu City, Chiba prefecture, with the Higashi-Ogishima thermal power station in Kawasaki city, Kanagawa prefecture.TEPCO used the shield tunneling technique for the project and achieved a record length of 9 km for the use of a single shield machine. Digging began at both Futtsu and Higashi-Ogishima, and connected under central Tokyo Bay.The Futtsu LNG receiving terminal has ten 1.1-million cu m LNG tanks, while the Higashi-Ogishima LNG receiving terminal as nine 540,000 cu m ...

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