Rock bag / Net bag for bag-type foot protection
Powerful Unit
- Examination confirmation of harbor-related commercial technology, and business evaluation technology assessment No. 18002
- CE marking
New Technology Information System (NETIS) Registration Number：CBK-120003-VR
Outline
Bag material for sea and lakes where the effects of waves are a concern
Powerful Unit/ROCK BAG (NET GABION) is a bag material made by polyester fiber. Its net strength and excellent durability prevents wear and breakage of the net caused by the boulders and driftwood. It can be used as a revetment and a bridge pier foot protection work and an emergency flood control material.
Characteristics
- All of the raw materials utilized are polyester fibers, there will be no degradation due to rusting.
- Because of super-thick raschel netting, the bag material is resistant to rupture.
- During installation, since the mouth closing part (knot part) does not protrude, the bag has a shape that avoids caught up by driftwood.
- It has flexibility required for revetment foundation consolidation work, the bag shape is able to fit onto the landscape changes occurring in the bottom.In addition, the ability to fit into gaps is also maintained, which is necessary for filling work.
- For the filling materials, locally generated materials (such as boulders, broken stones and rag stones) and concrete chunks can be used.
- The netting mesh size is 50-75mm, which allows marine organisms easily pass in and out.
Application
Used as a slope protection material
After installation
After installation
Used as a temporary road (Viaduct on National road)
After installation
Binding type
Under development : Powerful unit for scouring prevention and foot revetment for Offshore wind power generation monopile foundations
For detailsStandard / specification
Product No. and standard specification
|
Product No. (Mass) |
FPU-10 (For 1t) |
FPU-20 (For 2t) |
FPU-30 (For 3t) |
FPU-40 (For 4t) |
FPU-60 (For 6t) |
FPU-80 (For 8t) |
FPU-120 (For 12t) |
||
|---|---|---|---|---|---|---|---|---|---|
| Approximate capacity（m³） | 0.5 to 0.62 | 1.0 to 1.25 | 1.5 to 1.9 | 2.0 to 2.5 | 3.0 to 3.75 | 4.0 to 5.0 | 6.0 to 7.5 | ||
| Dimensions | W（mm） | 1,800 | 2,250 | 2,600 | 2,850 | 4,000 | 4,000 | 4,500 | |
| H（mm） | 1,600 | 2,150 | 2,400 | 2,650 | 2,700 | 3,000 | 3,300 | ||
| Shape | Single Net Bag | ||||||||
| Netting | Material | Polyester raschel net (Black spun-dyed) | |||||||
| Composition（dtex） | 1,670×80strands | 1,670×128strands | 1,670×230strands | ||||||
| Mesh spacing（mm） | 75 | 50 | 50 | 70 | |||||
| Tensile strength（N/ strand） | 2,700 or more | 4,000 or more | 7500 or more | ||||||
| Tensile strain（％） | 30 or more, and 50 or less | 20 or more, and 50 or less | |||||||
| Lifting rope※1 | Tensile strength（kN） | 12 or more | 22 or more | 46.7 or more | |||||
| Tensile strain（％） | 40 or less | ||||||||
| Mouth binding rope | Tensile strength（kN） | 3.5 or more | 12 or more | ||||||
| Tensile strain（％） | 40 or less | ||||||||
| Bottom binding rope | Tensile strength（kN） | 12 or more | 22 or more | ||||||
| Tensile strain（％） | 40 or less | ||||||||
| Filling material | Boulders, gravels, rubbles, concrete lumps (Sizes from 100mm up to human head size), etc. |
||||||||
※Binding types are also available.
Completed shape reference table
| Product No. (Mass) | FPU-10 (For 1t) |
FPU-20 (For 2t) |
FPU-30 (For 3t) |
FPU-40 (For 4t) |
FPU-60 (For 6t) |
FPU-80 (For 8t) |
FPU-120 (For 12t) |
||
|---|---|---|---|---|---|---|---|---|---|
| Diameter（mm） | 1,700 | 2,100 | 2,400 | 2,700 | 3,300 | 3,600 | 3,950 | ||
| Height（mm） | 550 | 700 | 750 | 900 | 950 | 950 | 1,250 | ||
| Circumferential height（mm） | 300 | 400 | 500 | 500 | 500 | 500 | 550 | ||
※ The completed shape dimensions described above are reference values in the case where the filling materials used are broken stones between 150 to 250mm in size. Because the stone size, specific gravity, and grain size will differ according to the site, the diameter and height will also change.
Additionally, in the case where the bags are placed in layers, because it can be expected that the heights in the table will become lower due to the weight and the method of placing the bags in layers, adjustments will be required at each site.
Construction example
Related catalog download
disaster recovery / Foot protection / maintenace road / net gabion / ocean / Offshore wind power generation / river / Rock bag / Solar power generation / wind power generation