The wear of tunnelling tools successively reduces their excavation capability, which slows down the penetration rate of the tunnel-boring machine (TBM) and eventually requires a replacement of the...

In mid-March 2021, the Swiss Federal Roads Office (FEDRO) has awarded the 86.6 million Swiss francs (78.5 million euros) contract to build a 4 km access shaft for the second Gotthard tube (Lot 243) to...

In March 2021, the Swiss construction group Implenia was awarded the contract for the construction of the Lysaker–Fornebu railway tunnel in Norway. The contract consists of planning and building a...

Since the 6th Rock Mechanics and Tunnelling Day could not take place in 2020 due to the Corona pandemic, the event is now planned for 10 June 2021. However, the regulations to be expected due to the...

The largest ever Robbins Crossover (XRE) TBM in China launched in late March 2021 in Guangzhou for contractors Sichuan Jinshi Heavy Equipment Leasing Co., Ltd and CREC Bureau 2. The 9.16 m diameter...

Following the success of the 1st PIARC International Conference on Tunnels held in Lyon, France, in October 2018, the World Road Association PIARC and the Spanish National Committee (ATC) will jointly...

MBCC Group, one of the leading suppliers of construction chemicals and solutions worldwide, and TPH Bausysteme GmbH signed a purchase agreement for the acquisition of TPH by MBCC Group in March 2021....

On 26 February 2021, DSI Underground SMART, a wholly owned subsidiary of DSI Underground completed the acquisition of the virtual reality training specialist Edvirt. Edvirt provides products and...

The world´s largest known resource of polyhalite minerals is located in northern England in the county of North Yorkshire, close to Whitby. To unearth the mineral, which is used in the production of...