Motorway Underpass Using Geomembranes as a Groundwater Barrier

In some places in the Netherlands, there is an absence of natural clay so groundwater flushes easily through the soil. As soon as excavation starts, groundwater will be present. Groundwater must be removed or taken care of to build roads, tunnels, etc. in dry conditions. This article describes a technique using geosynthetic materials for creating dry building pits.