Logo Universitat Bremen
 
Sorry, this page is not available in English.
Page path:

Ting-Wei Wu

Doctoral Students

Group: 

Marine Geotechnics

Phone: 

+49 421 218-65814

Fax:

+49 421 218-00000

Email:

Room: 

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, generic study that aims at quantifying the strengthening effect of earthquake loading on marine slope sediment deposits. 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 so that ex­cess pore pres­su­re de­structs the se­di­ment fa­bric and bon­d­ing forces bet­ween par­ti­cles). 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 significance of seismic strengthening in sediments of different mineralogical and grain size compositions. Expected scientific outcome is to enhance our understanding of:

  • Seismic strengthening of granular material and its dependence on parameters such 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 the 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

Cruise

Area

Date

ECORD Training Course
Bremen MARUM (IODP virtual ship experience)
23 April - 27 April 2018
FS POSEIDON
POS500
Nice Aiport landslide area
Ports: Catania - Málaga
25 May - 10 June 2016

Languages

Native: Taiwanese Mandarin, Taiwanese Hokkien

High (C2): American English

High-intermediate (N2): Japanese

Intermediate (B1): German, French

Publications

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.

(Submitted to SCI journal) 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.

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., Re­port and preli­mi­na­ry re­sults of R/​V Po­sei­don crui­se Pos500 “LISA”: Li­gu­ri­an Slo­pe AUV map­ping, gra­vi­ty co­ring and seis­mic re­flec­tion. Be­rich­te aus dem MARUM und Fach­be­reich Geo­wis­sen­schaf­ten der Univ. Bre­men, No. 312, 62 pp. (ISSN 2195-9633)

Laborarbeit-Probenvorbereitung
Feldarbeit-Vierwaldstättersee
Laborarbeit-Probenvorbereitung
MARUM DTTD