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Seitenpfad:

Ting-Wei Wu

Doktorand_innen

Gruppe: 

Marine Geotechnik

Telefon: 

+49 421 218-65814

Fax:

+49 421 218-00000

E-Mail:

Raum: 

MARUM Pavillion, 1130

Ting-Wei Wu

PhD Project

My project is funded by the European Commission, project SLATE (Submarine landslides and their impact on European continental margins). Topic:  Quantitative Geotechnical Characterization of Seismic Strengthening Effect on Subaquatic Slope Stability

This project consists of a laboratory based on quantifying the effects of earthquake. The seismic strengthening process involves gradual densification of sediment caused by repeated earthquake events that dewater the sediment (also called: dynamic compaction, as opposed to liquefaction in case the shaking is more intense). By using a dynamic triaxial system at the MARUM with frequencies up to 50 Hz, the increase in undrained shear strength as a function of dynamic loading and pore water drainage can be measured, which sheds light on the stability of the studied slope as a result. The main goal is to explore the nature and seismic strengthening in sediments of different mineralogical and grain size compositions.Expected scientific outcome is to improve our understanding of:

  • Seismic strengthening of materials and their dependence on parameters as well as the seismic intensity, number of seismic events and overburden stresses.
  • Seismic strengthening of geotechnically more complex types of soils, for example silts, clays, sand-silt-clay mixtures, tephra, and diatom ooze.
  • Case study on natural samples incorporating real earthquake signals.

Curriculum Vitae

2017 - present
PhD student at MARUM, University of Bremen, Germany

2016 - 2017
Research assistant at the Institute of Earth Sciences, Academia Sinica, Taiwan

2014 - 2016
Master of Science (M.Sc.), Marine Geophysics, 1/12, University of Western Brittany (Brest), France

2010 - 2014
Bachelor of Science (B.Sc.), Earth Sciences, 8/50, National Central University, Taiwan

2012 - 2013 and 2016
Guest student to M. Sc. Marine Geosciences, University of Bremen, Germany

 

Expedition and Training

Activity

Location

Date

Research stay
Ifremer (Center of Brest/Plouzané), France
22 October - 21 December 2018
ECORD Training Course
Bremen MARUM (IODP virtual ship experience)
23 April - 27 April 2018
FS POSEIDON
POS500
Nice Aiport landslide area
Ports: Catania - Malaga
25 May - 10 June 2016

Languages

Native: Taiwanese Mandarin, Taiwanese Hokkien

High (C2): American English

High-intermediate (N2): Japanese

Intermediate (B1): German, French

Publications

2019

(Accepted by Terrestrial, Atmospheric and Oceanic Sciences) Wu, T.-W. , Chi, W.-C., Lin, Y.-S., and Chen, S.-C., Temperature as a Tracer for Fluid Movement at Hydrothermal Sites Near the Yonaguni Knoll IV, Okinawa Trough.

2018

Roesner, A., Wiemer, G., Kreiter, S., Wenau, S., Wu, T.-W. , Courboulex, F., Spiess, V., and Kopf, A., Impact of Seismicity on Nice Slope stability-Ligurian Basin, SE France: a geotechnical revisit. Landslides 13, p. 119. DOI: 10.1007 / s10346-018-1060-7.

2017

Chi, W.-C., Lee, S.-Y., Lin, Y.-S., Chen, W.-J, and Wu, T.-W. , Geological Investigation of Mineral Resource Potential in the Offshore Area of ​​Northeastern Taiwan: Seismic and Heat Flow Surveys (2/4): Fluid Migration Model. Central Geological Survey report no. 106-12-C, 49 pp, Taipei. Originally written in Chinese with English abstract.

2016

Kopf, A., Fleischmann, T., Gauchery, T., Meinecke, G., Renken, J., Spiesecke, U., Stange, N., Völker, D., von Wahl, T., Wenau, S. , Wittauer, C., and Wu, T.-W. Poseidon cruise Pos500 "LISA": Ligurian slope AUV mapping, gravity coring and seismic reflection. Reports from the MARUM and Department of Geosciences of the Univ. Bremen, No. 312, 62 pp. (ISSN 2195-9633)

Laborarbeit-Probenvorbereitung
Feldarbeit-Vierwaldstättersee
MARUM DTTD