Abstract #
This paper presents a method for determining the global stability of geotechnical structures in complicated geological conditions, with a specific focus on Slovakia, where slope deformations are a prevalent geohazard. The study contrasts two approaches: calculating global stability for a system of geotechnical structures as a whole versus assessing the stability of each object individually. The analysis includes case studies from the D3 highway construction project, which traverses several landslide-prone areas. The findings emphasize the importance of an integrated approach to stability assessment to ensure the safety and durability of large infrastructure projects.
Technical Relevance #
This document is highly relevant for geotechnical engineers and professionals involved in large-scale infrastructure projects, particularly those in regions with complex geological conditions. The comparison between different stability assessment methods offers valuable insights into how geotechnical systems can be designed and managed to prevent slope failures, especially in seismically active or landslide-prone areas.
Target Audience #
The document is intended for geotechnical engineers, researchers, and infrastructure project managers dealing with slope stability issues. It is particularly useful for professionals working on highway construction, urban planning, and other projects where the stability of large groups of geotechnical structures must be ensured.
Software and Methodology #
The methodology involves two levels of analysis: global stability calculations for a system of geotechnical structures and internal stability assessments for individual components within that system. The study uses detailed geological surveys and numerical modeling to assess the stability of different sections of the D3 highway in Slovakia. The process includes both static and dynamic (seismic) analyses to account for potential triggering events that could lead to slope failure.
Process Description #
The document begins with an overview of the geological conditions in Slovakia, focusing on areas with a high incidence of slope deformations. The D3 highway project is used as a case study to illustrate the challenges of designing for stability in such an environment. The process description covers the identification of critical shear surfaces, the division of the project into homogeneous sections, and the application of different stability assessment methods. The paper also discusses the use of pilot walls, anchors, and other stabilization measures to enhance the overall stability of the project.
Main Findings #
The study finds that a global stability approach, where the interaction between multiple geotechnical structures is considered, provides a more accurate assessment of overall safety compared to evaluating each structure independently. The findings also highlight the importance of adjusting construction processes based on real-time monitoring and updating the stability model as the project progresses. The seismic analysis revealed that additional measures might be needed to maintain stability under earthquake conditions.
Practical Applications #
The insights from this study are directly applicable to the design and construction of highways and other large-scale infrastructure projects in geologically complex areas. Engineers can use the global stability assessment method to optimize the placement and design of geotechnical structures, ensuring that they work together to prevent slope failures and other geotechnical hazards.
Limitations and Considerations #
The document notes that while the global stability approach offers a comprehensive view of the system’s safety, it requires detailed geological data and continuous monitoring, which may not always be available. Additionally, the study’s findings are specific to the geological conditions of Slovakia, and the methodology may need to be adapted for use in other regions with different soil and rock properties.
Conclusions #
The paper concludes that an integrated global stability approach is essential for the safe and effective management of large geotechnical projects, particularly in regions prone to landslides and seismic activity. The case study of the D3 highway demonstrates the value of this approach in preventing slope failures and ensuring the long-term stability of infrastructure. The study emphasizes the need for ongoing monitoring and the flexibility to adjust construction plans based on real-time data.
Related Resources #
Further reading includes case studies on the application of global stability assessment methods in other infrastructure projects, as well as research on the impact of seismic activity on slope stability. Additional resources on numerical modeling techniques for geotechnical stability analysis can also provide deeper insights into optimizing design strategies.
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