Explore Genap’s sustainable project portfolio
Discover how Genap tackles real-world challenges with innovative and sustainable solutions. Explore our project portfolio and see how we leverage our expertise to craft tailor-made solutions to meet a variety of challenges.
Waterproof membrane structure for sewage system
Genap constructed a water-retaining membrane system for the installation of a sewage system below the groundwater level. The membrane system was submerged based on its own weight, without the use of a pontoon, to save costs and maximize efficiency.
Membrane constructions under tunnel approaches
For the reconstruction of the Peelo Zuid road section, an underpass intersection and bicycle tunnel are planned, with membrane layers for construction pits following the U-polder principle. Genap supplied 8,000 m² of PVC membrane and 4,000 m² of protective fleece for this project for BAM Wegen bv, where spatial constraints necessitated an innovative approach.
Centrale As Noord membrane construction underpass
The underpass of Koailoane, part of "De Centrale As" between Dokkum and Drachten, combines an elevated cycle path with a wildlife passage. Genap installed a liquid-proof membrane to keep the groundwater out, covered with ballast. For this innovative project, 150,000 m² of membrane was used to complete it.
Construction pit for tunnels around N421 bypass
The N421, constructed in 2015 between the A12 and Houten, includes tunnels under roads, for which Genap installed waterproof membranes. Structure 1 received 4,500 m² of PVC membrane, and Structure 3 received a combination of geotextile and PVC to ensure anhydrous construction pits.