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Developed in cooperation between YIT and Posiva, the grouting method eliminated the major risks related to the schedule of the construction project. The cooperative construction model was highly praised.

Posiva has spent more than 40 years preparing for the permanent disposal of spent nuclear fuel.

1,900 new parking spaces and smooth public transport connections in many directions near workplaces and new homes. The Keilaniemi underground car park will serve many kinds of travellers in Espoo.

Did you know that, when a tunnel is excavated, the blasts are always supervised by a third party? Or that rock scalers working in the tunnels use machines to remove loose rocks from tunnel walls and ceilings to improve occupational safety? Or that the amount of rock that is detached from the rock in one blast is called a break?

‘Unique’ is a fitting word to describe Helen’s seawater heat recovery project in Salmisaari, which has now entered its approximately two-year planning and development phase. The official contract signing event for the development phase of the alliance was held in Helsinki on Tuesday, 6 September 2022.

An excavation project for a seasonal heat storage will begin soon in Kuusikonmäki, Vantaa. It is not unusual to carry out quarrying, underground excavations and related blasting work in residential areas in Finland. But how to prepare for excavation and how will it affect the local residents?

Occupational safety has taken a huge leap forward in development in 50 years and the speed of change is accelerating due to the development of technology and artificial intelligence. In the construction industry, occupational safety is taken extremely seriously. All accidents must be prevented and learned from.

Large machines, explosions and working underground captivated Visa Myllymäki, Vice President, Rock Tunneling, already during his studies.