Viinikankadun maanalaisen ajoyhteyden ja P-Hämpin laajennuksen pohjatutkimukset

TENDER DESCRIPTION

The procurement is a service contract based on unit prices for carrying out subsurface ground investigations for the underground vehicular connection on Viinikankatu and the extension of P-Hämp in the scope in accordance with the tender documents. The ground investigations shall be completed together with their final reports by 31.12.2026 at the latest, or as soon as possible if access is not available to all investigation points during 2026. As specified in the investigation programmes attached to the request for tender, the procurement includes rock coring and sampling borehole investigations, rotary core drilling investigations, investigating the in-situ stress state of the rock, carrying out sampling, conducting laboratory tests on samples, and reporting the investigation results. The supplier is responsible for safety planning of the investigations, including, among other things, the planning and implementation of temporary traffic arrangements during the work. In addition, the supplier is responsible for obtaining the required permits from the relevant authorities. Some of the investigation points are located in the railway area. Working in the railway area requires a…

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