Microtunneling GRP Pipe Systems
| Project ID: [000056] | |
| Country: | Arab Emirates |
| City: | Abu Dhabi |
| Year: | 2001 |
| Application: | Wastewater |
| Installation: | Jacking |
| Total Length [m]: | 24000 |
| Nominal Diameter DN [mm]: | 400 | 1800 |
| Outside Diameter De [mm] | 401/427 | 1842 |
| Nominal Pressure PN [bar]: | 1 |
| Nominal Stiffness SN [N/m²]: | 10000 |
Down in the Emirates
The ground conditions were very poor and soil consisted of layered mudstone, gypsum and sandy-silt with a high ground water table. The total project was divided into several contracts, whereas the biggest part was realized by the local firm. This section consisted of approx. 24 km in a diameter range of DN 400 to 1800 and HOBAS received the order to supply half of the project. HOBAS CC-GRP Pipe Systems were installed with a special concrete surrounding. The reason for the reinforced pipe is the tunnel boring machine, which has a certain diameter. The size of the machine does not have to be changed when the diameter of the GRP Pipe varies. The main reason why HOBAS CC-GRP Pipe Systems were taken was the smooth and highly corrosion resistant inner liner.
