In the heart of Bulgaria, a groundbreaking study is reshaping how we approach foundation design for industrial facilities, particularly those built on challenging loess soil. Led by Nikolay Milev from the Department of Geotechnics at the University of Architecture, Civil Engineering and Geodesy (UACEG) in Sofia, this research could significantly impact the energy sector and beyond.
Loess soil, a wind-blown sediment found in various parts of the world, poses unique challenges due to its collapsible nature. In Silistra, Bulgaria, this soil extends to a depth of 12 meters, classified as “collapsible – Type II” according to the Bulgarian Shallow Foundations Code. This classification means that traditional foundation methods often fall short, leading to potential settlement and tilt issues that can jeopardize the structural integrity of industrial facilities like silos.
Milev’s study, published in Facta Universitatis. Series: Architecture and Civil Engineering, explores two innovative foundation strategies tailored to these challenging conditions. The first approach involves a dual mat foundation placed atop a thick base layer of soil-cement mixture and soil enhanced through rapid impact compaction (RIC). “This method not only mitigates the collapsibility of the soil but also ensures a swift and cost-efficient execution,” Milev explains.
The second strategy proposes a mat foundation on a thinner base layer of soil-cement mixture, supplemented by deep soil mix (DSM) columns. Both methods leverage soil improvement techniques readily available in the Bulgarian market, ensuring structural reliability and operational efficiency.
The implications of this research are far-reaching, particularly for the energy sector. Industrial silos, crucial for storing and processing materials, often face stringent operational limitations. By addressing the challenges posed by loess soil, Milev’s findings pave the way for more robust and reliable foundation designs. This could lead to reduced maintenance costs, increased operational lifespan, and enhanced safety standards.
Moreover, the study’s focus on local soil improvement practices highlights a sustainable approach to construction. By utilizing readily available materials and techniques, the methods proposed by Milev align with the growing trend towards eco-friendly and cost-effective construction solutions.
As the energy sector continues to evolve, the need for innovative foundation designs becomes increasingly apparent. Milev’s research offers a glimpse into the future of construction, where adaptability and sustainability go hand in hand. “The key is to understand the unique properties of the soil and develop strategies that work with, rather than against, these properties,” Milev notes.
For professionals in the construction and energy sectors, this study serves as a call to action. It underscores the importance of continuous research and development in geotechnical engineering, particularly in regions with challenging soil conditions. As we strive to build more resilient and efficient industrial facilities, the insights provided by Milev and his team could prove invaluable.
The study’s publication in Facta Universitatis. Series: Architecture and Civil Engineering, translates to ‘Facts of the University. Series: Architecture and Civil Engineering’ in English, further emphasizes its academic rigor and practical relevance. As the construction industry continues to evolve, Milev’s work stands as a testament to the power of innovation and adaptability.
