BRAND NAME :Prefabricated Composite Vertical Drain/ hdpe drainage board
PRODUCT DESCRIPTION :
Long term settlement of soft silt and clay often creates serious problems in construction. Many years it may be required for consolidation of thick compressible layers of soil. This design problem can be overcome by creating closely-spaced artificial vertical drainage paths to which the pore water can flow, thus decreasing the consolidation time to a matter of months. These artificial drainage paths, called wick drains, consist of a central plastic core, which functions as a free-draining water channel, surrounded by a thin geosynthetic filter jacket.
HOW TO USE THE PRODUCT
Wick drains are installed with specialized equipment, called stitchers. The stitchers, which are mounted on either backhoes or excavator consist of a vertical mast housing a special installation mandrel. The mandrel, containing the wick drain, is hydraulically pushed or vibrated into the ground to the desired treatment depth, typically to the bottom of the soft-soil stratum. As the mandrel is withdrawn back into the mast, the undamaged wick drain is left in place within the soil mass.
APPLICATION
Wick drain projects have included dams, large storage areas, highway embankments, sedimentation ponds, tanks, bridge abutments, buildings, and airport runways.
The most common application of wick drains is for accelerating the settlement rate of compressible soils. At some sites, the primary purpose of wick drains is to increase the shear strength of underlying soft soils. As soil consolidates, the shear strength increases due to a reduction in the water content. This application is particularly important when high area fills have to be placed over soft soils with low shear strength. Potential instability problems can be overcome by loading the site in stages and allowing the soft soils to gain in strength under each stage before placement of the next stage of fill.
SPECIFICATION
| PVD TECHNICAL DATA |
| item |
property |
unit |
type |
Remark |
| Complex |
|
|
|
A |
B |
C |
D |
|
| |
Setion Size |
Width |
mm |
100±2 |
100±2 |
100±2 |
100±2 |
|
| |
|
Thick |
mm |
≥3.5 |
≥4.0 |
≥4.5 |
≥5.5 |
|
| |
Vertical Flow Capacity |
cm3/s |
≥15 |
≥25 |
≥40 |
≥60 |
Side pressure 350kPa |
| |
Compound Tensile Strength |
kN/10cm |
>1.0 |
>1.3 |
>1.5 |
>1.5 |
Tension is kN/10cm |
| |
Elongation Percentage |
% |
<10 |
<10 |
<10 |
<10 |
Tension is kN/10cm |
| Filter Cloth |
Penetration Coefficient |
cm/s |
≥5x10-4 |
≥5x10-4 |
≥5x10-4 |
≥5x10-4 |
Sinking into water for 24 hours |
| |
Equivalent Aperture |
µ/m |
<75 |
<75 |
<75 |
<75 |
Aperture Ф98 |
| |
Tensile Strength |
Vertical dry Condition |
N/cm |
≥15 |
≥25 |
≥30 |
≥35 |
10% of extension rate |
| Core |
|
Horizon Wet Condition |
N/cm |
≥10 |
≥20 |
≥25 |
≥30 |
15% of extension rate |
| |
Structure |
|
|
Core section is like a harmonica shape |
| |
Raw Material |
|
|
Polypropylene,Polyethylene |
| Pack |
Antibacterial Property |
|
|
No Breeding |
| |
Length per roll |
|
m |
200±2 |
| |
Qty per 40'container |
|
m |
130000m, 120000m, 110000m, 100000m |
| |
Outer Diameter |
|
m |
1.20 |
| |
Inner diameter |
|
m |
0.16 |
OUR COMPANY
Wantong Composite Material Co.,LTD is specialized in the research,development,production and sales of geosynthetic materials, fiberglass products.Our Company is devoted to geosynthetic material and fiberglass products research, development and application.
Our company is in strict accordance with national standards and related standards.
We have advanced detection instruments. Our company passed ISO9001 and other quality system authentication.
We also been assessed by SGS and got their certificate.Our company provides before-sales, in-sales and after-sales services.
We wish to cooperate sincerely with friends at home and abroad, paint the grand blueprint and create brilliance together.
OUR PACKAGE
OUR CUSTOMER
The FAQ of our company
1. How long have you been in the Geo-synthetics and fiberglass product industry?
----Since 2007 years.
2. Are you manufacturer or trad company
-----We are the manufacture specialized in Geo-synthetics and fiberglass product, in Taian city, ShanDong Province, China.
3.How much the transportation freight of sample?
------The freight depends on the weight and packing size and destination from here to your location.
4. How long can I expect to get the sample?
------The samples will be ready for delivery in 3-5days. The samples will be sent via international express such as DHL, TNT, and EMS would be arrived within 3-5 days.
5. Can we have our LOGO or company name to be printed on your products or package?
------Sure, Your LOGO could be printed on your product by Hot stamping, Printing, Embossing, UV coating, Silk-screen Printing or Sticker.
6. Do you have stock?
------Most of product are under regular production, we can make delivery immediately if we the specific one in stock.
OUR CERTIFICATE
Audited Supplier 
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