Düker Nord-Ostsee-Kanal: Los 1 - Tunnelbauwerk inkl. Medienleitungen und Kabel

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The Stadtwerke Kiel (hereinafter referred to as SWK) plan to modernise and expand the supply capacity and supply security in the north of Kiel. The aim is to create a revision-proof and low-maintenance connection for gas, water, district heating, electricity and telecommunications lines. This is to be achieved by constructing a new culvert under the Nord-Ostsee-Kanal to accommodate the above-mentioned services. The overall project "Düker Nord-Ostsee-Kanal" is divided into four lots including tunnel structure and utility pipes (Lot 1), connection lines (Lot 2), technical equipment (Lot 3) and the extension/expansion of the shaft structures (Lot 4). The subject matter of this Lot 1 is the tunnel structure including the utility pipes and cables to be laid in it, as well as the following works: a) Construction of an approximately 880 m long tunnel structure DN 3200 with reinforced concrete pipes using the pipe jacking method (microtunnelling) under the Nord-Ostsee-Kanal. b) Construction of the required construction pits: starting construction pit as an overlapping bored pile wall with a depth of approx. 11 m and an internal diameter of approx. 16 m; target (receiving) construction…

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