Prefabricated Vertical Drain (PVD)

LAND DRAIN (LD70)

"Land drain" is the water draining material for soft supporting soil. It has been applied in a variety of civil engineering sites such as earth filling for harbor, reclamation, road, railway and airport. Based on accumulated R&D,

it will help many kinds of development works with its low cost and stable work performance.

1. Material

    -core : PP,PE

    -Filter : PET

    -Sheath : PE 

    - Weight : 65~75 g/mr

    -Width : 100±5 mm

    -Thickness : 2.5~5.0 mm

2. Mechanical Properties(Filter)

    -Tensile Strength : >5.0 kN/M

    -Elongation : 20~60 %

    -AoS(095) : <75 μm

    -Permeability : >1.0 x 10 (-4) cm/sec

3. Assembled Drain

   -Elongation : > 30 %

   -Discharge Capacity : > 40 cm3/s

   -Tensile Strength : >2.0 kN

3. Roll Length : 200~300M

LD Series : LD60, LD70,LD80, LD90. Please refer to our website.

Highly economical

It can save the cost of works up to by 20-50%, compared to sand drain, given that the same water draining performance is attained.

Speedy driving

As the Drain Boards are light weight and easy for handling, they can be driven quickly into the subsoil. With a simple driving system weighting 3 to 5 tons,

Drain Boards covering a length of about max. 25,000M can be driven per a day.

Highly suited even for very weak soils

Light weight wakes it possible to employ simply a sand mat of thickness about 50cm so that soil improvement even at regions where the soil is very weak can be effected.

Highly permeability

Drain Boards possess a permeability that is practically the same even if the soil pressure is 6kg/cm2, a pressure corresponding to a depth of about 50 meters.

No cracking or peeling occurs in Drain Boards no matter how they are driven

After driven into the soil, the product can maintain its performance even in initial

compaction and the resulting bending. With excellent water permeability factor and

size of effective holes, the water drain product of “Land Drain”can get the maximum effects by lengthening the life of materials.

High physico chemical stability

Using the polyolefin materials, it is resistant to acidity and alkalinity and also resistant to organic microbes and bacteria in

the soil.