Prefabricated vertical drains (PVD) are widely used to facilitate consolidation of soft soil deposits. To investigate the behaviour of PVD improved ground, in 1997 the Finnish National Road Administration has constructed a test embankment in Haarajoki, about 40 km northeast of Helsinki, where half of the area was improved with PVD whereas the other half was left unimproved.
T StapelfeldtP. VepsäläinenZhen‐Yu Yin
S. PrabavathyK. RajagopalN. Kumar Pitchumani
Buddhima IndraratnaA. S. BalasubramaniamP. Ratnayake