In the heart of Dorood City, a groundbreaking approach to constructing sewage infrastructure is making waves in the construction industry. The city’s high underground water levels have long posed significant challenges for traditional construction methods, but a new study published in ‘آب و فاضلاب’ (English: Water and Wastewater) led by Bahador Mirzaei, Senior Structural Engineer and Project/Design Manager at Water and Wastewater Consulting Engineers in Isfahan, Iran, may have found a game-changer.
The research, which focuses on the design and construction of the Sewage Pumping Station PS2, explores the limitations of conventional methods like deep wells, sheet pile walls, and secant walls in high groundwater conditions. “These methods often fall short in managing the constant influx of water, leading to delays, increased costs, and potential safety hazards,” Mirzaei explains.
The study introduces an innovative solution: the Top-Down method. Originally developed for constructing caissons and buildings, this approach has shown promise in addressing the unique challenges posed by high underground water levels. “The Top-Down method allows for simultaneous excavation and construction, significantly reducing the time the structure is exposed to water,” Mirzaei says. This method not only accelerates the construction process but also enhances safety and economic viability.
The Top-Down method involves constructing the superstructure first, followed by the excavation of the basement. This approach minimizes water ingress and ensures a more stable and controlled construction environment. The research delves into the technical and economic aspects of this method, highlighting its efficiency and robustness.
The implications of this research are vast, particularly for the energy sector. As urbanization continues to surge, so does the demand for efficient wastewater management systems. High groundwater levels are a common challenge in many urban areas, and the Top-Down method could revolutionize how these structures are built. By reducing construction time and costs, and improving safety, this method could pave the way for more sustainable and efficient infrastructure development.
The study also addresses practical challenges, such as the waterstop placement system and construction details, providing a comprehensive guide for engineers and contractors. The findings suggest that the Top-Down method could be a viable solution for constructing sewage structures in areas with high groundwater levels, offering a more efficient and cost-effective approach.
As the industry looks to the future, the Top-Down method could become a standard practice, shaping how we build and maintain essential infrastructure. The research by Mirzaei and his team, published in ‘آب و فاضلاب’, is a significant step forward, offering a practical and innovative solution to a long-standing problem. This could potentially lead to more resilient and efficient sewage systems, benefiting both the construction industry and the communities they serve.