Soft ground improvement requires effective drainage to accelerate consolidation and manage excess pore water. While prefabricated vertical drains are installed deep into soft soil to facilitate vertical drainage, an efficient horizontal drainage system is also essential for transporting discharged pore water away from the improved ground.
DAEHAN i.m. offers Hori-Drain®, a pocket-style Prefabricated Horizontal Drain (PHD) designed for soft ground improvement and drainage applications. Made with a mechanically strong polypropylene (PP) core and a specialized nonwoven filter jacket, Hori-Drain® provides a high-capacity drainage path for pore water discharged through vertical drains.
By connecting Hori-Drain® to the portion of a prefabricated vertical drain (PVD) exposed above the ground after installation, the system can facilitate rapid horizontal drainage and accelerate the consolidation process.
What Is a Prefabricated Horizontal Drain?
A Prefabricated Horizontal Drain (PHD) is installed horizontally to collect water from vertical drains like Verti-Drain®. In soft ground improvement, vertical drains remove excess pore water, which horizontal drains then transport to discharge points. Hori-Drain® is designed for this, offering high drainage capacity as an alternative to traditional sand or gravel layers.
Hori-Drain®: An Efficient Horizontal Drainage Solution
Hori-Drain® is a pocket-style Prefabricated Horizontal Drain manufactured from a mechanically strong PP core and a nonwoven filter jacket specialized for soil improvement and drainage applications.
How Does Hori-Drain® Work With Vertical Drains?
- Vertical drain installation: Prefabricated vertical drains are installed into the soft ground.
- Pore water movement: Excess pore water moves from the surrounding soil toward the vertical drains.
- Vertical drainage: Water is transported through the vertical drainage channels.
- Horizontal connection: The exposed portion of the vertical drain is connected to Hori-Drain®.
- Horizontal water collection: Hori-Drain® collects and transports the discharged pore water.
- Drainage and consolidation: Efficient water discharge accelerates soil consolidation and supports soft ground improvement.
Key Advantages of Hori-Drain®:
- Eco-Friendly: Reduces use of natural aggregates like sand and gravel.
- Cost-Effective: Can cut construction costs by over 30%.
- Stable Production: Factory-made for consistent supply and quality.
- Easy Installation: Can be installed manually without heavy equipment.
- High Capacity: Drainage exceeds 3,500 cm³/s under 500 kPa load.
- Water Channel Protection: 山-shaped core prevents filter intrusion.
- Efficient Water Collection: Open channel offers at least 80% effective drainage area.
Applications of Hori-Drain®:
Hori-Drain® is used to replace natural materials like sand or gravel in horizontal drainage layers for soil improvement and various drainage needs, including:
- Replacing sand or gravel layers in soft ground improvement.
- Land development for roads, railways, airports, and seaports.
- Rainwater drainage.
- Drainage of bank slopes and dissipation of water pressure.
- Back wall drainage for retaining walls and concrete structures.
If you’re looking for horizontal drain manufacturer, you can find them at DAEHAN i.m.
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View more: Innovative Prefabricated Horizontal Drain for Infrastructure Projects
