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Call for tender under the SQS 239894 - Category 4 - Site investigations for HDD crossing at Roskilde Fjord

Buyer: Energinet Eltransmission A/S

Published
11 December 2024
Procedure
Negotiated procedure
Notice number
00757298-2024
Reference
d79e7ee4-8d2d-431b-b81c-0066474ab48d
Official source
Official source

CPV codes

Description

The scope of work includes performance of site investigations for one HDD location: 1. Roskilde Fjord, HDD range approximately 1700 m. The site investigations include: • Work Package A (Lot 1) - Geophysical investigations with electrical resistivity mapping of the geology to identify shallow soft soil, low and high resistivity units between boreholes and homogeneity and fractureness of pre-quaternary soil units (Danien Chalk). Detailed seismic mapping down to at least 50 m under the seabed. Furthermore, the seabed surface must be mapped with respect to water depth and surface characteristics. • Work Package B (Lot 2) - Geotechnical investigations with conventional geotechnical boreholes, CPT tests and laboratory tests, but also coreing of underlying pre-quaternary soil units of Danien Chalk, including advanced laboratory testing on selected samples (geological description). This package also includes geophysic well-logging. The results must be delivered as site investigation reports supported by profiles, charts as well as digital deliverables for both WP1 and WP2.

Lots (2)

LotDescriptionCPV codeAmount
1 Site investigations for HDD crossing at Roskilde Fjord - LOT A 71351200 Servicios de consultoría en materia geológica y geofísica
2 Site investigations for HDD crossing at Roskilde Fjord - LOT B 71351200 Servicios de consultoría en materia geológica y geofísica

Awards

Awarded toAmountDate
COWI A/S
Per Aarsleff A/S

Official publications

Other tenders from Energinet Eltransmission A/S

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Data collected from official public procurement sources. Amounts as published by the buyer.