Latest SCI publications

Latest Projects

Research project (§ 26 & § 27)
Duration : 2021-12-01 - 2022-11-30

ÖBB-Infrastruktur maintains and operates about 150 tunnel structures with an age of more than 100 years. The majority of these are masonry tunnels whose lining can be of various types (e.g. quarry stone masonry, brick masonry, concrete molds). Damage caused, for example, by aging and influences from operation as well as requirements for current clearance specifications require in part extensive repair or renewal measures on the existing masonry. These measures, some of which are carried out during ongoing rail operations, are usually accompanied by a temporary weakening of the existing tunnel vault. In this research project, monitoring systems are to be developed that can be used reliably and economically in the course of vault repairs of old masonry tunnels under tunnel conditions.
Research project (§ 26 & § 27)
Duration : 2022-05-01 - 2025-04-30

Within the framework of the Protection Forest Centre Traunkirchen at the Forest Campus Austria, there is a cooperation agreement between the four partners BMLRT/​Dep. III/4 — Torrent and Avalanche Control and Protection Forest, Österreichische Bundesforste AG, Austrian Research Centre for Forests and the University of Natural Resources and Applied Life Sciences, Vienna — with the primary objective of promoting a joint protection forest policy in Austria. One of the objectives of the work plan of the Protection Forest Centre Traunkirchen is to establish a model catchment in the Rindbach basin near Ebensee (Upper Austria). This torrential-model catchment is to serve in the long term (>30 years) to convey the geological, hydrological, hydraulic, forestry and construction interrelationships under natural conditions, as a natural laboratory and as a training area for practical training courses. In the course of the submitted project MEZG-Rindbach, an interdisciplinary team of scientists will collect basic data which, in the context of integral natural hazard management, will record the relationships between natural hazard processes, vegetation condition and dynamics, site conditions (soil, geomorphology, geology, climate) and the management of (protective) forests. In addition to the provision of all collected data and their meta-information, which serve as a basis for subsequent analyses or re-surveys, another aim of the three-year project is to present ​“best-practise” models or simulations of the above-mentioned interrelationships.
Research project (§ 26 & § 27)
Duration : 2022-01-01 - 2023-12-31

In this research project, a 3D grain-scale continuum-discontinuum hierarchical multiscale computational framework is proposed to improve the deep understanding of compaction banding formations in the sedimentary porous rocks that are of strong interest and of major challenge in the modern geomechanics. The proposed grain-scale continuum-discontinuum multiscale numerical framework for porous geological media consists of three levels including FEM meshes at macro-scale, DEM grains at meso-scale and hypoplastic peridynamic points at micro-scale. Furthermore, the region partitioning search algorithm and CPU-GPU heterogeneous computing architecture both contribute to improvement of computational efficiency to construct an open-source 3D computational platform that is suitable to simulate large-scale geological and geotechnical problems. To systematically investigate the localized failure mechanism of compaction bands in porous geological media at laboratory and field scales, one laboratory-scale and one field-scale numerical models are simulated by 3D computational platform. The influencing factors of boundary conditions, stress fields, geomaterials heterogeneity, nonlocal characteristic length, granular shapes, etc. on the localization failure processes of compaction bands will be summarized and analyzed. Sequentially, effects of microstructural mechanism including pore collapse, grain debonding, intra-granular damage and grain crushing on the nucleation and propagation of compaction bands during the localized failure processes. Furthermore, localized failure mechanism of the geological tectonic phenomena, i.e., coexistence of pure compaction bands and shear enhanced bands, will be numerical explored .

Supervised Theses and Dissertations