Geotechnical Forum - Winter semester 2021/2022
ZOOM-LINK
ZOOM link to the event:
publication here 30 minutes before the event begins
Thursdays, 6:15pm - 7:45pm
1.) 21.10.2021
Dipl.-Ing. Hartmut Hangen
HUESKER Synthetic GmbH, Gescher
Felix Lehmann, M.Eng.
ELE Beratende Ingenieure GmbH, Essen
Bridge abutments made of geosynthetic-reinforced earth - construction method, load-bearing behavior and initial experience in Germany
The construction and replacement of road bridges is of great importance for the improvement and maintenance of the infrastructure in Germany. Innovative construction methods are increasingly being sought in order to shorten construction times and reduce disruption to road users. One such method is the construction of bridge abutments using geosynthetic reinforced earth (GRS). Here, the superstructure is founded directly on the geosynthetic soil with support beams, which results in a significant difference in load-bearing and deformation behavior compared to solid bridge abutments. In the presentation, the construction method and load-bearing behavior will be presented and initial experiences in Germany will be reported.
2.) NEW DATE: 20.01.2022 (originally: 04.11.2021)
PD Dr. rer. nat. Ernst Niederleithinger
Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin
Non-destructive testing of foundations before reuse
A number of non-destructive testing methods are available for the quality assurance of new foundations. The portfolio ranges from the simple hammer blow method ("pile integrity testing") to complex ultrasonic methods for meter-thick foundation slabs.
But do these methods also work in existing structures? Can the data required for reuse, conversion and further use be recorded? And how can the non-destructive testing methods be successfully integrated into investigation concepts? This will be discussed primarily using the example of the foundations of overhead line pylons.
3.) 18.11.2021
NEW PRESENTER: Josef Rabanser
Martin Place Station Sydney, Australia
Sydney Metro's new Martin Place integrated station includes the underground station, two new above-ground buildings, and new underground pedestrian connections and other public realm improvements. The tunneling challenges of this major project in the heart of downtown Sydney are discussed. Special emphasis is placed on continuum and discontinuum modeling in the tunnels and building structures of the major underground structures.
4.) 09.12.2021
Prof. Dr.-Ing. Holger Schüttrumpf
Institut für Wasserbau und Wasserwirtschaft, RWTH Aachen
Experiences from the 2021 flood in North Rhine-Westphalia and Rhineland-Palatinate
The flood of 2021 had dramatic consequences for the inhabitants of the affected areas along the rivers Ahr, Erft, Vicht and Inde. The presentation covers the description and evaluation of the flood event from an engineering point of view.