Prefabricated Horizontal Drain

Hori-Drain® is a pocket style Prefabricated Horizontal Drain (PHD) that improves soft ground. It is made of a mechanically strong PP core and a nonwoven filter jacket that is specialized for soil improvement and drainage works. Hori-Drain^® expedites soil consolidation by facilitating rapid drainage of pore water discharged through vertical drains installed in soft ground. Hori-Drain^® is installed by connecting with a part of prefabricated vertical drain(Verti-Drain^®) exposed outside of the ground after installation. Hori-Drain^® can effectively and economically replace the horizontal layer of natural aggregates(sand and gravel) thanks to its high level of drainage capacity. Core structure of 山 shape can prevent filter insert to water channels under high pressure in comparison to other types of core structures more effectively.