Ultra Rapid UnderPass: The adaption of the URUP method for the Netherlands

With the URUP (Ultra Rapid UnderPass) method short underpasses for cyclists and pedestrians below roads and railways can be constructed. With this method a tunnel boring machine (TBM) starts on surface, bores an underpass, and ends on surface. The cross section of the underpass has a rectangular shape. Contractor Van Hattum en Blankevoort (VHB)...