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Path: home - About us - AG Seiten - Marine Geotechnics
 

Marine Geotechnics

Marine Geotechnology is an interdisciplinary field of research and focuses mainly on two topics:

Geotechnical laboratory investigations:
Determination of physical (geotechnical) properties as key parameters for the stability of sediments and rocks. Typical applications include the determination of the stability of continental slopes, the simulation of static and dynamic load onto water-saturated sediments, or shear experiments up to normal loads equivalent to the seismogenic zone at active continental margins.
For the suite of measurements, two engineering geological-geotechnical laboratories are available at MARUM Bremen (Geotechnical laboratory)

In situ measurements and long term monitoring:
In order to calibrate the geotechnical tests in the laboratory, we develop equipment for in situ measurement of physical properties. Our marine instruments penetrate the seafloor and measure for minutes up to months (long-term stations). The main objective is to measure variations over time since processes like landslides, earthquakes, siltations and others follow a cyclicity. Main interests include the measurement of sediment shear strength, pore pressure as a trigger for episodic processes, and temperature.

Two CPT-free fall lances (cone penetration testing), long-term pore water probes, a smart borehole plug, an ocean bottom station or a 360° scanning sonar have been realised. They are introduced in more detail as In situ instruments.

Members of the working group

NamePhoneFaxe-mail
Ai, Fei+49  421 218 - 65806+49  421 218 - 65810e-mail address
Fleischmann, Timo+49  421 218 - 65813+49  421 218 - 65810e-mail address
Hammerschmidt, Sebastian+49  421 218 - 65812+49  421 218 - 9865812e-mail address
Hüpers, Andre+49  421 218 - 65802+49  421 218 - 65810e-mail address
Ikari, Matt+49  421 218 - 65659e-mail address
Kopf, Achim J.+49  421 218 - 65800+49  421 218 - 65805e-mail address
Lange, Matthias+49  421 218 - 65842+49  421 218 - 65810e-mail address
Rajasekaran, Vigneshwaran+49  421 218 - 65806+49  421 218 - 65810e-mail address
Renken, Petra+49  421 218 - 65801+49  421 218 - 65810e-mail address
Stark, Nina+49  421 218 - 65808+49  421 218 - 65810e-mail address
Stegmann, Sylvia+49  421 218 - 65808+49  421 218 - 65805e-mail address
Steiner, Alois+49  421 218 - 65809+49  421 218 - 65810e-mail address
Strasser, Michaele-mail address
Wiemer, Gauvain+49  421 218 - 65533+49  421 218 - 65805e-mail address
Zoellner, Christian+49  421 218 - 65809+49  421 218 - 65810e-mail address

Projects and working areas

Projects and working areas

  • Slope stability and landslides (Eastern Mediterranean Sea, Ligurian Basin, Chile, Gibraltar Arc, Lake Lucerne/CH)
  • Seismogenesis (Nankai Trough, Gibraltar Arc, Costa Rica, Hellenic subduction zone, SAFOD, Chelungpu FZ, Gulf of Corinth, Alpine Fault)
  • Sediment physical properties (North Sea, Baltic Sea, Nankai Trough, Gibraltar Arc, Costa Rica, Hellenic subduction zone, Hawaii, New Zealand)
  • Bed load dynamics and fluid mud properties (German Bight estuaries, New Zealand)
  • Active mud volcanism (Azerbaijan, Eastern Mediterranean Sea, Costa Rica, Nankai Trough/Japan)
  • Long-term monitoring of pore pressure (Nankai Trough, North Sea, Azerbaijan)

In situ instruments

  • Shallow-water CPTu probe (200 m)
  • Shallow-water CPTu probe (500 m)
  • Deep-water CPTu probe (4000 m)
  • NIMROD free fall penetrometer
  • FINO pore pressure probe
  • Gas flux meter
  • 360° sonar tower
  • Underwater docking station North Sea
  • Borehole pore pressure system (Smart Plug/Genius Plug)
  • Temperature gradient probe
  • Long-term piezometer systems

 

Marine geotechnical laboratory

Expeditions Marine Geotechnics

The Marine Geotechnics group at MARUM leads an avaerag 2 expeditions each year and is involved in approximately 10 campaigns (national research vessels as well as int. programmes such as IODP), where one or several scientists or technicians are part if the scientific party of another survey. The main areas of interest can be found in Projects and Working areas (see above).

For details regarding both upcoming or very recent expeditions, click here.

 

Collaborators at Univ. Bremen

NamePhoneFaxe-mail
Diepenbroek, Michael+49  421 218 - 65590e-mail address
Kasten, Sabine+49  471 4831 - 1936+49  471 4831 - 1149e-mail address
Mörz, Tobias+49  421 218 - 65840+49  421 218 - 65810e-mail address
Pichler, Thomas+49  421 218 - 65100+49  421 218 - 65105e-mail address
Schindler, Uwe+49  421 218 - 65595+49  421 218 - 65505e-mail address
Spieß, Volkhard+49  421 218 - 65370+49  421 218 - 65399e-mail address
Strasser, Michaele-mail address
Villinger, Heinrich+49  421 218 - 65340e-mail address
Vogt, Christoph+49  421 218 - 65170+49  421 218 - 65189e-mail address
Winter, Christian+49  421 218 - 65656+49  421 218 - 9865656e-mail address

Graduate students

Sofia Kufner
Simon Haas
Sebastian Schlenzek
Maria Belke Brea
Nils Monsees
Nina Dorniok
Marc Guell
Haifa Rifai

Collaborators and associated institutions

  • see German version

 
Imprint | © marum | This page was last updated by: Prof. Dr. Achim J. Kopf. Date: 05-03-2012, 11:03 PM 58