Civil Engineers, planners and contractors who often support complex infrastructural projects such as direct economic highways, airports and other traffic routes often find themselves having to build on poor soils, marshlands and sometimes even land that needs to be reclaimed!
In many cases, the sub-grade is too weak to allow construction to proceed at a normal rate. Soft, cohesive soils are very slow to consolidate. 90% settlement can take up to 20-25 years without the use of vertical drains for soil consolidation.
Prefabricated vertical drain are not only providing a solution for fast soil improvement : it significantly reduces the needs of new material to substitute the soil in place, preserving the natural resources.
