The variable-diameter machine has been designed for what will become the largest integrated stormwater collection system in the region. The strategic infrastructure project is aimed at increasing Dubai’s stormwater drainage capacity by 700% and supporting the city’s long-term resilience for the next 100 years.
The project comes with significant engineering challenges, including extreme high temperatures, complex ground conditions, deep alignment, high water pressure, long-distance tunnelling, and changing diameter requirements along different sections of the route.
CREG says these conditions demand a high level of adaptability, reliability, and technical performance from the equipment.
To meet the challenges, CREG developed a variable-diameter pipe-jacking machine that can switch flexibly between 4.78m and 4.28m excavation diameters. This solution improves cost efficiency and enhances construction adaptability across different working conditions.
Once completed, the stormwater drainage project – also known as the Tasreef project – will strengthen Dubai’s flood control and drainage capacity, support better response to climate-related challenges, and improve stormwater resource use.
