Product

Asymmetry spiral drain / PCD: It prevents itself from being pleated or cut by earth pressure or the multilayer structure of the ground, and its drainage efficiency is relatively higher than other products, showing great improvement in effectiveness.

Cylindrical PBD / C-PBD: Inducing a water flow to a circular water pathway, it minimizes the risk of blockages by means of a non-woven filter jacket in conventional general-type PBD.

General-type PBD: Corrugated PBD is a plastic board drain consisting of a series of corrugated cross sections, and the Harmonica-shaped PBD consists of a series of harmonica-shaped cross sections. They are commonly used as pocket-sized plastic board drains combined with high-intensity polypropylene cores and filters.

Biodegradable PBD / S-PBD: This is an eco-friendly board drain for the improvement of soft ground, replacing a non-degradable PP material with a degradable one.

SPE Horizontal Drain / SHD: This is a horizontal drain that collects pore water discharged upwards by a vertical drain and induces it into a collecting well. It is made by combining it properly with PCD depending on the demand of the rate of drainage.

Double-core Horizontal Drain / DHD: DHD is devised to totally substitute a sand mat for improvement of soft ground, showing higher efficiency for water passage than high-quality sand and greatly reducing the cost of construction as there is no need for expensive aggregates.

Cylindrical Horizontal Plastic Board Drain / CHD: The cylindrical horizontal drain is devised to totally a substitute aggregate drain layer for improvement of soft ground, showing higher efficiency for water passage than high-quality aggregates. It is a factory product that offers the merits of easy supply and transportation, greatly reduces the cost of construction as there is no need for expensive aggregates, and also contributes to keeping construction sites clean.

Vacuum consolidation method: The method uses a plastic board drain, interpenetrating soft ground to soak pore water by bringing the ground to a vacuum state for consolidation and applying the weight of air pressure.

Joints: Joints are used to join a board drain to another without disconnection, which reduces overall length loss, cuts expenses for materials, and simultaneously prevents damage to the environment.

Product Vertical drain
Division	Type	Item	Use	Note
Vertical drain	Uneven-type	VD55	Shallow depth
	Uneven-type	VD70	Shallow depth
	Harmonica-shaped	VD75	Medium depth
		VD80	Medium depth
		VD90	deep depth
	Cylindrical	C-PBD	Shallow, medium, deep depth	New technology product, efficiency certified
	Pipe-type	PCD 32	high water content ground, deep depth, special geotechnical condition	New technology product
Vertical & horizontal drain	Pipe-type	PCD 50	high water content ground, deep depth, special geotechnical condition, horizontal drain layer	New technology product
Horizontal drain	Bunch-type	SHD	Horizontal drain layer