| Program | VEGA |
| Principal Investigator: | Ing. Bulko Roman, PhD. |
| Researchers: | doc. Mgr. Sitányiová Dana, PhD., Ing. Masarovičová Soňa, PhD., doc. Ing. Nguyen Giang, CSc., Ing. Štefánik Martin |
| Project Duration: | 1/2025 - 12/2028 |
| Engineering geological (IG) survey is a key element in the planning, design and implementation of geotechnical projects. Its main objective is to obtain detailed information about the geological conditions at the site of the future construction and their impact on structural stability and safety. In this research project, we focus on integrating laboratory and field tests to assess the stiffness and strength of soils under small deformations. For this purpose, we will use Bender elements in a geotechnical laboratory under controlled conditions and measured data from SCPT tests under real conditions. Through laboratory tests with Bender elements, we will obtain a reliable method for determining the shear wave velocity, while measured data from SCPT tests provide us with information under real conditions. The integration of these two methods will allow us to obtain a comprehensive view of the mechanical properties of soils and will provide us with important data for engineering applications in the field of geotechnics and construction. | |
| Program | VEGA |
| Principal Investigator: | prof. Ing. Drusa Marián, PhD. |
| Researchers: | Ing. Vlček Jozef, PhD., Ing. Gago Filip, PhD., doc. Ing. Mužík Juraj, PhD., Ing. Mihálik Ján, PhD., Ing. Dobeš Peter, PhD., Ing. Kaisová Renáta, Ing. Cigáň Filip, Mgr. Malík František |
| Project Duration: | 1/2024 - 12/2027 |
| New materials and their interaction in the subgrade of transport structures offer several advantageous solutions in cases of unsupportable subgrades. These solutions are designed to shorten construction time, save natural resources, reduce carbon footprint, eliminate the effects of climatic conditions during construction and eliminate complex technological procedures during construction. As was the case with the advent of geosynthetics, foam concrete and reinforced foam concrete bring new possibilities for structural solutions for road base layers and paved areas, base layers of railway subgrades, and base layers of floors of residential and industrial buildings. | |
| Program | VEGA |
| Principal Investigator: | doc. Ing. Mužík Juraj, PhD. |
| Researchers: | Ing. Bulko Roman, PhD., Ing. Daniel Ľuboš, PhD., prof. Ing. Kovařík Karel, CSc., Ing. Masarovičová Soňa, PhD., Ing. Gago Filip, PhD., Ing. Mihálik Ján |
| Project Duration: | 4/2021 - 12/2023 |
| The project focuses on the design and implementation of soil constitutive models based on the neural network paradigm. The neural constitutive model should better describe the highly nonlinear behavior of the soil and implicitly describe some aspects of the response to mechanical stress, which is often not described even when using advanced soil constitutive models. The project involves the design of an application framework for the implementation of the neural network architecture and its learning process. Advanced constitutive models are rarely used in geotechnical practice, mainly due to the complexity of the model formulation and the large number of input parameters, which in some cases do not represent a direct physical characteristic, and their determination is quite problematic and non-intuitive. The goal is to implement a neural constitutive model capable of competing with advanced soil constitutive models, and its subsequent integration within the framework of numerical analyses using the finite element method. | |
| Program | VEGA |
| Principal Investigator: | prof. Ing. Drusa Marián, PhD. |
| Researchers: | prof. Ing. Decký Martin, Dr., Ing. Gago Filip, PhD., Ing. Dobeš Peter, PhD., doc. Ing. Mužík Juraj, PhD., Ing. Mihálik Ján, PhD., Ing. Vlček Jozef, PhD. |
| Project Duration: | 1/2020 - 12/2023 |
| The use of new materials in construction in various applications and processes has long been a current process supporting innovations in an effort to simplify, streamline and reduce the cost of construction. As was the case with the advent of geosynthetics, foam concrete and reinforced foam concrete bring new possibilities for structural solutions for road and paved surfaces, railway subgrades, passive house foundation structures or floor subgrades in residential and industrial buildings. | |
| Program | VEGA |
| Principal Investigator: | prof. Ing. Ižvolt Libor, PhD. |
| Researchers: | doc. Ing. Šestáková Janka, PhD., Ing. Vlček Jozef, PhD., doc. Ing. Hodás Stanislav, PhD., doc. Ing. Ižvoltová Jana, Dr., doc. Ing. Papán Daniel, PhD., prof. Ing. Drusa Marián, PhD., Ing. Smrčková Daša, Ing. Mečár Martin, PhD., Ing. Dobeš Peter, doc. Ing. Papánová Zuzana, PhD., Ing. Pultznerová Alžbeta, PhD. |
| Project Duration: | 1/2020 - 12/2023 |
| The subject of the project is the design and verification of transition area structures between the railway superstructure structures and the railway substructure objects as places of significant change in track stiffness. By applying numerical modeling and experimental analysis methods, the expected maximum load values at the individual interfaces of the structural layers of the proposed transition areas will be obtained, for various cases of the railway superstructure structure (classical and unconventional), railway substructure objects (bridges, culverts, underpasses, tunnels) and various structural compositions of the transition areas (modification of structural elements of the track grid and materials of the structural layers of the railway substructure) with regard to maintaining the required deformation resistance of the railway track structure during its service life. Verification of selected transition area designs will be carried out by experimental measurements of stress in individual structural layers and by monitoring the track geometry in the entire area of interest of selected modernized track sections. | |