News

Two milestones have been achieved for National Grid team members and the Hochtief Murphy Joint Venture (HMJV) for the London Power Tunnels 2 (LPT2) project during two months. Starting from Brixton, the drive of Lovat TBM Caroline to Wimbledon was completed on 23/07/2022, while her daily performance was 61.1m in a 16hr along her 5.7km […]

Construction of the new Hell tunnel with 3.9-km-length for the E6 Ranheim-Værnes project, was completed by Nye Veier and Acciona earlier this month. The location of commencing tunnel’s excavation using the drill&blast method in April 2021 was the Hommelvik side, while in June 2021 it started from the Hell side. Beginning the digging process from […]

On 28 July 2022, the process of lowering the cutterhead of the tunnel boring machine (TBM) for Transport for London’s Silvertown Tunnel project into its launch chamber was done. As the largest diameter TBM in the UK, the intended TBM weighs 1,800t and measures 11.91m across. Following that the Riverlinx construction joint venture (CJV) lowered […]

Experimentation of a new tunnel excavation method using Komatsu’s newly developed mining TBM, is being implemented by Japanese machinery manufacturer Komatsu Ltd and Chile’s state-owned mining company as well as the world’s largest copper producer, Codelco. Commencing in 2024 at Codelco’s Chuquicamata mine in Chile, this trial intends to speed up the potential introduction of […]

Following completion of the micro tunnel boring machine Domenica’s second drive on Watercare’s Central Interceptor, which is New Zealand’s largest wastewater project, and ahead of schedule landmark has been achieved in this project. Delivery of the works on the Central Interceptor scheme, is currently done by the Ghella Abergeldie Joint Venture (GAJV), while its micro […]

On 9 June 2022, the opening ceremony of the first TBM to be used in order to excavate the access tunnel of the Gotthard motorway tunnel’s second tube was held. While the Client is the Federal Roads Office FEDRO, the designers and the construction management are the DL Bedrina consortium, led by the Pini Group. […]