Research
PhD defence by Elena Peri

PhD defence by Elena Peri

Elena will defend her thesis "COMPRESSION AND TIME-DEPENDENT BEHAVIOUR IN DANISH CLAYS AND CHALK - AN EXPERIMENTAL STUDY".

Time

15.04.2021 kl. 09.10 - 13.00

Description

SUMMARY OF THE THESIS

To guarantee safe geotechnical design and reliable prediction of settlements of a construction, it is important to investigate different aspects of soil compression behaviour. For example, the swelling potential of the soil after an excavation or the long-term creep behaviour. It is fundamental to carry out an accurate testing program, which usually implies high cost and a long time. For this reason, the quality of testing is too often neglected, and this leads to an approximated interpretation of soil parameters.

This thesis investigates the compression behaviour of a set of Danish clays and chalk, in relation to laboratory procedure, interpretation of results and influence of testing time. The experimental program consists of incremental loading oedometer and constant volume swelling tests. Among others, Rørdal chalk, chalk found in North Denmark, and Søvind Marl, a fissured clay with high plasticity and swelling potential are investigated. Oedometer results on medium-stiff clays contributed to the investigation about the preconsolidation stress interpretation and the tests’ numerical validation through different constitutive soil models.

ASSESSMENT COMMITTEE

  • Prof. John Dalsgaard Sørensen, Dept. of the Built Environment, Aalborg University (chairman)
  • GEO Engineering Director, Ph.D. Lindita Kellezi, GEO, Lyngby, Denmark
  • Prof. Dr.-Ing. Martin Achmus, University of Hannover, Germany

PHD SUPERVISORS

  • Supervisor, Prof. Lars Damkilde, Dept. of the Built Environment, Aalborg University

MODERATOR

  • Assoc. Prof. Jannie Sønderkær Nielsen, Dept. of the Built Environment, Aalborg University

GRADUATE PROGRAMME

  • Civil Engineering

PROGRAMME

9:10 Welcome by moderator

9:15 Lecture and presentation by Ph.D. student

10:00 Break
During the break, participants can email questions to the moderator, Jannie Sønderkær Nielsen, jsn@build.aau.dk, who will present these questions after the Q&A session with the assessment committee.

10:10 Q&A session with the assessment committee

12:10 End of defence
The assessment committee enters another “room”, evaluates and writes the final assessment.

Approx. 12:45 The assessment committee re-joins the “Defence room” and announces its decision.

13:00 End of event

How to participate

The defence will be carried out online via Microsoft Teams. On the day of the defence, please click here to join the meeting.

For a copy of the thesis, please send an email to Linda V. Andersen, lva@build.aau.dk.
 

See this invitation in pdf format

Host

Department of the Built Environment, Aalborg University

Address

Microsoft Teams

Events

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