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Long term compression behaviour of soft organic sediments
Publikationstyp
Conference Paper
Date Issued
2013
Sprache
English
Author(s)
Institut
TORE-URI
Start Page
249
End Page
254
Citation
International Workshop "Advances in Multiphysical Testing of Soils and Shales" 2012: 249-254 (2013)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Springer
ISBN of container
978-3-642-32491-8
978-3-642-32492-5
Within the coming years a doubling of the container handling in the ports of Hamburg, Germany, is estimated. As a consequence, a significant increase in required space for the new logistic areas is expected. To meet that demand a number of unused canals are backfilled using dredged material from the port or from the Elbe River. The sediments are backfilled in a quasi liquid state, so that they experience one-dimensional consolidation under saturated conditions. In order to study the behaviour of these fills, several laboratory long-term consolidation tests were carried out on soft organic sediments coming from the ports of Hamburg and Bremerhaven. Results show an increase in settlement rate during the secondary compression, the so called tertiary compression. The variation of the tertiary compression coefficient and start-time are investigated in relation to loading, temperature, fibre content, organic content, salinity and gas formation.
Subjects
Fibre Content
Organic Content
Vertical Load
Compression Index
Oedometer Test
DDC Class
550: Geowissenschaften
620: Ingenieurwissenschaften
690: Hausbau, Bauhandwerk