In the heart of North Macedonia, researchers are digging deep into the science of tunneling, with implications that could reshape the energy sector’s approach to underground construction. Zlatko Zafirovski, from the Department of Railways, Roads, and Geotechnics at Saints Cyril and Methodius University of Skopje, has been leading a groundbreaking study that could revolutionize how we build and support tunnels, especially in seismic zones.
Tunneling is a critical component of infrastructure development, particularly for the energy sector. From hydroelectric power plants to natural gas pipelines, tunnels are the unseen arteries that keep our energy systems pumping. However, building these tunnels, especially in areas prone to earthquakes, is a complex and risky endeavor. This is where Zafirovski’s research comes in.
The study, published in the journal “Geotechnical and Geological Engineering” (AGG+), focuses on the deconfinement method, a technique that models the time needed to set up support structures and obtain relevant parameters for dimensioning lining elements. “Through the so-called method 1-ß, we can successfully model the time needed to set up the support and obtain relevant parameters for dimensioning the elements of the lining for different load cases in static and seismic conditions,” Zafirovski explains.
The deconfinement method, also known as the 1-ß method, allows for the percentage-enabled realization of deformations in the excavation. This means that engineers can better predict and manage the behavior of tunnels during and after construction, particularly in areas with high seismic activity. For the energy sector, this could mean more reliable and safer underground infrastructure, reducing the risk of costly repairs and downtime.
The research uses PLAXIS 2D software for numerical modeling, providing a detailed analysis of tunnel construction phases. This parametric analysis offers a comprehensive understanding of how tunnels behave under various conditions, from static loads to seismic events. “The conducted analysis shows that the method can be applied to different stages of performance, providing valuable insights for dimensioning lining elements,” Zafirovski adds.
The implications of this research are vast. For the energy sector, it means more robust and resilient underground infrastructure. For construction companies, it offers a more precise and reliable method for tunnel support, reducing risks and costs. And for regions prone to seismic activity, it provides a safer and more sustainable approach to underground construction.
As the energy sector continues to expand and diversify, the need for reliable and safe underground infrastructure will only grow. Zafirovski’s research, published in AGG+, offers a promising solution, paving the way for future developments in the field. The study not only advances our understanding of tunnel construction but also sets a new standard for safety and efficiency in the energy sector. As we delve deeper into the earth to meet our energy needs, research like this will be crucial in ensuring that our underground infrastructure is as robust and reliable as the energy it supports.
