Sustainable Dredging and Sediment Re-Use at Port of Kokkola, Finland
Type:
Presented during:
WODCON XXIII - Dredging is changing - The Practice. The Science. The Business.
Authors:
M. Mengelt, T. Marjamäki
Abstract
"The Port of Kokkola, Finland infrastructure improvements project is nearly completed. The goal is to improve harbour operations to facilitate development of industry nearby. In connection with the harbour improvements, the fairway to the harbour and the harbour basin are dredged to deepen them to allow access by larger vessels. The dredging masses consist of a wide variety of soil and blasted rock units, some of which are contaminated from historic harbour and vessel traffic operations. The project emphasizes sustainable dredging and material re-use practices. The contaminated masses are re-used on site and are deposited into basins located beneath the new harbour yards. Some of the masses are planned to be stabilized using Nordic dry-mix stabilization methodology and employing an optimized mixture of stabilizers. The intention is to create a low-carbon, sustainable construction product to support future port operations in Kokkola. The presentation will provide overview of design and insight into construction performed from 2019-2022."
Keywords: sustainability, stabilisation, reuse, low-carbon, circular economy