Why use PVD over sand drain
Why use PVD (Prefabricated vertical drain) over sand drain Installation of PVDs typically 6,000 linear meters per day (depending on the soil and the machine used it changes from 2000 to 8000) and result in a lower project cost. No (or less) risk of PVDs breaking during installation - sand drains can have discontinuities if mandril is withdrawn too fast. No (or less) risk of ...
