Since the development of the synthetic prefabricated vertical drain (PVD) in the late 1970ties, Cofra is worldwide one of the leading contractors in this segment. Cofra has installation rigs available for each soil type, varying from very soft soils to very stiff intermediate layers that can be deployed on pontoons. Our installation rigs are designed for containerized transport and thus easy to ship to any project location in the world. Being part of maritime service provider Boskalis gives us a unique access to resources and floating equipment to help execute your project
Wide experience in offshore installation
Cofra has wide experiences in the installation of PVD from Pontoons, we perform off shore projects on more or less yearly basis.