You can solve the need to deal with pressure caused by hydrostatic uplift using heavy ballast. This is a proven concept for tunnels, underground railways and train stations, as well as underwater ramps and other constructions below groundwater level.
As high density ballast is not a commonly used solution, not everyone is experienced with this way of working. And we all know that the unknown might seem intimidating. However, we believe that with the right support, you will embrace this solution. In this article, we discuss the myths or challenges that surround dense ballast.
In 2019, work was completed on the infill of four shafts in Essex with high density concrete. The concrete was designed to act as a plug to resist hydrostatic pressure uplift caused by the close proximity of the River Thames.