Beneficial on-site reuse of dredged harbor mud: A geotechnical challenge in alternative sediment management
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Other Titles: | Hafenschlick als Baumaterial: Eine geotechnische Herausforderung zur Erweiterung des Osthafens, Bremerhaven | Authors: | Schlue, Benjamin F. | Supervisor: | Mörz, Tobias | 1. Expert: | Mörz, Tobias | Experts: | Kopf, Achim | Abstract: | Sediment accumulation in waterways, estuaries and harbors results in expenditures of more than 1 billion Euros annually in Europe alone. These costs are mainly due to dredging for maintenance of navigable water depth and subsequent relocation, transport, treatment and/or disposal of the dredged material. Of special concern is the treatment of sediments dredged from harbors. A pilot study to use dredged harbor mud as backfill material was conducted in the East Harbor of Bremerhaven, Germany between 2005 and 2007. During this project, a total of about 180,000 m3 of harbor mud was relocated by pumping behind a newly installed sheet piling, creating 14 acres of new harbor area. The subsequent occurrence of strong surface deformation of the backfill, indicating a partial collapse of the mud layer, highlights the need to better understand the geotechnical properties of harbor mud. The purpose of this work is to gain a better understanding of the usability of harbor mud as backfill material and therefore help improve the planning reliability in using dredged harbor sediments in future land reclamation projects. |
Keywords: | harbor mud; beneficial reuse; shear strength; consolidation; vane shear testing; oedometer | Issue Date: | 12-Dec-2008 | Type: | Dissertation | Secondary publication: | no | URN: | urn:nbn:de:gbv:46-diss000112327 | Institution: | Universität Bremen | Faculty: | Fachbereich 05: Geowissenschaften (FB 05) |
Appears in Collections: | Dissertationen |
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