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Inwoo Ecotech

GXP Natural Revetment Vegetation Mat

Method Comparison Table

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Method Comparison Table1

classification INWOO Green Vegetation Mat INWOO GXP Revetment Vegetation Mat Method Vegetation mat
Cross-sectional
Specification 1,000 X 2,000 2,000 X 1,000 W1100 X T20 X VAR
Construction slope 1:1.5 or higher 1:1.5 or higher 1:1.0 ~ 3.0
Picture
Method
  • It is a three-dimensional multi-layered structure (plain fiber layer + rice straw + coir-net + bamboo + natural rope) and uses high tensile fixing pins(100% natural material) to increase shear stress.
  • Greening and slope stability are achieved
  • Direct planting and watering of seedlings
  • Straightening and slop stopping
  • Installation of 4 layer(natural fibers + rice straw, coir-net + pentagonal mesh net) mats
  • Installation of X-shaped fixing pin(1 unit/㎡) which can withstand high flow velocity
  • Planting hole perforation for seedling planting
  • Direct planting and watering of seedlings
  • Application to the place that requires formation of pure community of target species, prevention of weed invasion, and early rooting of vegetation (vegetation completion type mat)
  • Revetment slop stopping work
  • installation and fixation of plant mat
  • worksite cleaning and irrigation
Tractive force 30 kg/㎡ 30 kg/㎡ 3.5 kg/㎡ or less
Flow velocity 6.0 m/s 6.0 m/s 4.0 m/s
advantage
  • Maximizing the rooting rate based on direct planting after perforation of mat
  • Reduction of maintenance cost over the long-term
  • Use of 100% eco-friendly materials to prevent harm to environment
  • Design blending harmoniously with regional characteristics
  • Use of bamboo fixing pins that prevent mat curling caused by flow velocity and ensure tight fixation to prevent scour
  • Restoration of ecosystem through seedlings planting method
  • With integration and use of X-shaped fixing pins, it can be used even in rivers with high flow velocity.
  • Suppressing the weed propagation and forming a single species community
  • High rooting rate and early performance
  • Water purification, depending on plant species
  • Creation of landscape as intended by designer intention
  • Creation of same landscape with perennial vegetation
  • Prevention of soil runoff and erosion by using the fiber layer
  • Realization of communities formed by pure target species
  • Excellent aesthetic effect of pure communities
  • Fast rooting with plant completion type mat and minimization of disruption to transplanting process
  • Use of natural materials, causing no secondary contamination
  • Prevention of soil loss and improvement in life rate of plants through heat preservation and moisture retention
  • Reduction of maintenance cost (weed removal, irrigation volume)
Disadvantage
  • Difficulty in construction on severe gradient slope
  • The planting type incurs the purchase cost of herbaceous flowers, compared to seed type
  • The labor mobilization ratio is high due to direct seedling planting method.
  • Cost arises for purchase of herbaceous flowers, compared to seed type.
  • Material cost is slightly high
  • Limitation of applicable species
  • Lack of convenience in construction due to the supply based on custom-production system
Construction cost Total : KRW 43,250 /㎡ Total : KRW 43,250 /㎡ Total : KRW 48,000 /㎡
classification INWOO Green Vegetation Mat
Cross-sectional
Specification 1,000 X 2,000
Construction slope 1:1.5 or higher
Picture
Method
  • It is a three-dimensional multi-layered structure (plain fiber layer + rice straw + coir-net + bamboo + natural rope) and uses high tensile fixing pins(100% natural material) to increase shear stress.
  • Greening and slope stability are achieved
  • Direct planting and watering of seedlings
Tractive force 30 kg/㎡
Flow velocity 6.0 m/s
advantage
  • Maximizing the rooting rate based on direct planting after perforation of mat
  • Reduction of maintenance cost over the long-term
  • Use of 100% eco-friendly materials to prevent harm to environment
  • Design blending harmoniously with regional characteristics
  • Use of bamboo fixing pins that prevent mat curling caused by flow velocity and ensure tight fixation to prevent scour
Disadvantage
  • Difficulty in construction on severe gradient slope
  • The planting type incurs the purchase cost of herbaceous flowers, compared to seed type
Construction cost Total : KRW 43,250 /㎡
classification INWOO GXP Revetment Vegetation Mat Method
Cross-sectional
Specification 2,000 X 1,000
Construction slope 1:1.5 or higher
Picture
Method
  • Straightening and slop stopping
  • Installation of 4 layer(natural fibers + rice straw, coir-net + pentagonal mesh net) mats
  • Installation of X-shaped fixing pin(1 unit/㎡) which can withstand high flow velocity
  • Planting hole perforation for seedling planting
  • Direct planting and watering of seedlings
Tractive force 30 kg/㎡
Flow velocity 6.0 m/s
advantage
  • Restoration of ecosystem through seedlings planting method
  • With integration and use of X-shaped fixing pins, it can be used even in rivers with high flow velocity.
  • Suppressing the weed propagation and forming a single species community
  • High rooting rate and early performance
  • Water purification, depending on plant species
  • Creation of landscape as intended by designer intention
  • Creation of same landscape with perennial vegetation
  • Prevention of soil runoff and erosion by using the fiber layer
Disadvantage
  • The labor mobilization ratio is high due to direct seedling planting method.
  • Cost arises for purchase of herbaceous flowers, compared to seed type.
Construction cost Total : KRW 43,250 /㎡
classification Vegetation mat
Cross-sectional
Specification W1100 X T20 X VAR
Construction slope 1:1.0 ~ 3.0
Picture
Method
  • Application to the place that requires formation of pure community of target species, prevention of weed invasion, and early rooting of vegetation (vegetation completion type mat)
  • Revetment slop stopping work
  • installation and fixation of plant mat
  • worksite cleaning and irrigation
Tractive force 3.5 kg/㎡ or less
Flow velocity 4.0 m/s
advantage
  • Realization of communities formed by pure target species
  • Excellent aesthetic effect of pure communities
  • Fast rooting with plant completion type mat and minimization of disruption to transplanting process
  • Use of natural materials, causing no secondary contamination
  • Prevention of soil loss and improvement in life rate of plants through heat preservation and moisture retention
  • Reduction of maintenance cost (weed removal, irrigation volume)
Disadvantage
  • Material cost is slightly high
  • Limitation of applicable species
  • Lack of convenience in construction due to the supply based on custom-production system
Construction cost Total : KRW 48,000 /㎡

Method Comparison Table2

classification Biomat Ecoblock (S-type) Biodegradable vegetation cube
Cross-sectional
Specification 1,000 X 2,000 1,000*1,000*T100 2.15(m) X 20(m) X 30(mm)
Construction slope 1:1.5 or higher 1:1.0 ~ 3.0 1.2 or higher
Picture
Method
  • It is a vegetation-based mat that induces natural plant growth and promotes water purification by bioston, a porous particle internal filler, which is fixed by the roots of plants, contributing preservation and restoration of river ecosystem.
  • Install eco-type vegetation blocks from the bottom to the top and fix steel reinforcing plates(5 pieces/㎡)[prevention of loss and sliding].
  • After installation, cover up with soil by 2 to 3cm and let the soil fall into the gap of the mat.
  • After installation is completed, submerge or spray the vegetation once every 2 to 3 days to induce rooting.
  • Lay the mat after slope arrangement
  • Extend, fix, and connect the woven mattress.
  • Lay and connect the end of mattress.
  • Prepare and transport the filling soil or local soil.
  • Soil filling and vegetation process
Tractive force 6.7 kg/㎡ 7.5 kg/㎡ or less 4 kg/㎡ or more; 10kg/㎡ if rooting is realized
Flow velocity 6.0 m/s(when rooting is realized) 7.5 m/s or higher 2 ~ 4 m/s
advantage
  • It is a thick vegetation-based mat with excellent water holding capacity and protects the roots of plants from drying and erosion immediately after construction.
  • Microorganisms attached to the inside of biostone, which is a porous particle, promote water purification effect.
  • Laying the foundation for formation of aquatic and wet plant communities
  • Highly flexible and easy construction, compared to existing revetment methods such as gabion methods, etc.
  • 100% eco-friendly product made from natural vegetation-based materials
  • It is an excellent product that can withstand flood and high flow velocity, has advantages of easy construction and flexibility, and therefore can prevent scour.
  • Increasing the durability by immersing natural rubber in machine-woven coir rope
  • No environmental load; and maintaining durability for certain period
  • Developed to replace concrete blocks
  • Made from PLA(Poly Lactic Acis) biodegradable material which maintains sufficient tensile strength until rooting of vegetation and plants at high water bed
  • Special structure of mat minimizes outflow of filled soil particles
  • It has flexibility and improves the workability on curved surface.
  • Mechanized process which shortens construction time and increases cost-effectiveness
Disadvantage
  • As vegetation revetment method is used, there is a risk of loss in the event of heavy rain prior to rooting of vegetation
  • Care needs to be taken when slope face gradient is steep(less than 1: 1.0)
  • It is not permanent..
  • It is more expensive than concrete block.
  • Sieving is required for the local filling soil.
  • Initial vegetation is required to be managed.
  • It is a biodegradable PLA fiber with a thickness of 10mm and expensive.
Construction cost Total : KRW 59,300 /㎡ Total : KRW 119,305 /㎡
(excluding the transportation cost)		 Total : KRW 62,000 /㎡
classification Biomat
Cross-sectional
Specification 1,000 X 2,000
Construction slope 1:1.5 or higher
Picture
Method
  • It is a vegetation-based mat that induces natural plant growth and promotes water purification by bioston, a porous particle internal filler, which is fixed by the roots of plants, contributing preservation and restoration of river ecosystem.
Tractive force 6.7 kg/㎡
Flow velocity 6.0 m/s(when rooting is realized)
advantage
  • It is a thick vegetation-based mat with excellent water holding capacity and protects the roots of plants from drying and erosion immediately after construction.
  • Microorganisms attached to the inside of biostone, which is a porous particle, promote water purification effect.
  • Laying the foundation for formation of aquatic and wet plant communities
  • Highly flexible and easy construction, compared to existing revetment methods such as gabion methods, etc.
Disadvantage
  • As vegetation revetment method is used, there is a risk of loss in the event of heavy rain prior to rooting of vegetation
  • Care needs to be taken when slope face gradient is steep(less than 1: 1.0)
Construction cost Total : KRW 59,300 /㎡
classification Ecoblock (S-type)
Cross-sectional
Specification 1,000*1,000*T100
Construction slope 1:1.0 ~ 3.0
Picture
Method
  • Install eco-type vegetation blocks from the bottom to the top and fix steel reinforcing plates(5 pieces/㎡)[prevention of loss and sliding].
  • After installation, cover up with soil by 2 to 3cm and let the soil fall into the gap of the mat.
  • After installation is completed, submerge or spray the vegetation once every 2 to 3 days to induce rooting.
Tractive force 7.5 kg/㎡ or less
Flow velocity 7.5 m/s or higher
advantage
  • 100% eco-friendly product made from natural vegetation-based materials
  • It is an excellent product that can withstand flood and high flow velocity, has advantages of easy construction and flexibility, and therefore can prevent scour.
  • Increasing the durability by immersing natural rubber in machine-woven coir rope
  • No environmental load; and maintaining durability for certain period
  • Developed to replace concrete blocks
Disadvantage
  • It is not permanent..
  • It is more expensive than concrete block.
Construction cost Total : KRW 119,305 /㎡
(excluding the transportation cost)
classification Biodegradable vegetation cube
Cross-sectional
Specification 2.15(m) X 20(m) X 30(mm)
Construction slope 1.2 or higher
Picture
Method
  • Lay the mat after slope arrangement
  • Extend, fix, and connect the woven mattress.
  • Lay and connect the end of mattress.
  • Prepare and transport the filling soil or local soil.
  • Soil filling and vegetation process
Tractive force 4 kg/㎡ or more; 10kg/㎡ if rooting is realized
Flow velocity 2 ~ 4 m/s
advantage
  • Made from PLA(Poly Lactic Acis) biodegradable material which maintains sufficient tensile strength until rooting of vegetation and plants at high water bed
  • Special structure of mat minimizes outflow of filled soil particles
  • It has flexibility and improves the workability on curved surface.
  • Mechanized process which shortens construction time and increases cost-effectiveness
Disadvantage
  • Sieving is required for the local filling soil.
  • Initial vegetation is required to be managed.
  • It is a biodegradable PLA fiber with a thickness of 10mm and expensive.
Construction cost Total : KRW 62,000 /㎡

Method Comparison Table3

classification Environmental vegetation revetment block Stone type block Landscaping stone + coir roll
Cross-sectional
Specification 990 X 990 X 225 1,000 X 1,000 X 250(22)
Construction slope 1:1 ~ 1:3 1:2.0 or higher
Picture
Method
  • Laying the filter mat after slope arrangement
  • Blocks should be interlocked one by one in foundation concrete
  • Blocks should be connected through 'connection rod' to ensure that they can withstand high tractive force and high flow veolocity.
  • Heavy block with natural stone pattern and some perforations or pores in large concrete block (1m*1m)
  • Connect and integrate by using the U-type block embedded in the block between the blocks
  • Fill the soil in the uneven surface and interspace of blocks to induce greening partly
  • It is advantageous for maintaining the linear shape of river in the case of sand revetment,etc.
  • Constant volume and elasticity
  • Quick rooting and creation of beautiful vegetation landscape
  • Creating various vegetation formation, and contributing to formation of waterside ecosystem
Tractive force 24 kg/㎡ 340 kg/㎡ 15 kg/㎡
Flow velocity 6 m/s 7 m/s 4 m/s
Advantage
  • Large surface roughness, reducing the flow velocity significantly
  • A factory-built product, reducing the construction period
  • All blocks are connected by connecting rod, reducing the concern about loss in the event of flooding
  • Maintenance of surrounding ecological functions and creation of excellent scenery
  • Prevention of green tide by removing water contaminants (phosphorus, 실소)
  • Use of natural minerals
  • Water quality maintenance period: 20 years (permanent for vegetation planting)
  • Fast construction due to equipment construction and easy on-site management
  • Good moisture retention due to the ring coupling among blocks
  • Heavy weight(280 to 380kg) with excellent water control capability
  • Forming a multi-porous space for inhabitation of animals to provide a place for breeding and evacuation to fishes and aquatic insects
  • Soil sedimentary herbaceous plants grow in the crevice between the stones, creating a beautiful waterfront space.
  • Elastic and flexible to absorb impacts and maintain natural streamline shape of rivers
  • Providing perfect plant life conditions due to water adsorption of coir
Disadvantage
  • Requiring precise construction
  • Material cost is slightly high
  • Base and ceiling concrete are needed for construction
  • Difficulty with carry-in of materials and construction when it is difficult to secure access roads
  • Irrigation is required until plant rooting at initial phase of construction
  • Restriction on revetment slope inclination
Construction cost Total : KRW 96,622 /㎡ Total : KRW 99,666 (90,666) /㎡
(excluding the transportation cost)		 Total : KRW 130,000 /㎡
classification Environmental vegetation revetment block
Cross-sectional
Specification 990 X 990 X 225
Construction slope 1:1 ~ 1:3
Picture
Method
  • Laying the filter mat after slope arrangement
  • Blocks should be interlocked one by one in foundation concrete
  • Blocks should be connected through 'connection rod' to ensure that they can withstand high tractive force and high flow veolocity.
Tractive force 24 kg/㎡
Flow velocity 6 m/s
Advantage
  • Large surface roughness, reducing the flow velocity significantly
  • A factory-built product, reducing the construction period
  • All blocks are connected by connecting rod, reducing the concern about loss in the event of flooding
  • Maintenance of surrounding ecological functions and creation of excellent scenery
Disadvantage
  • Requiring precise construction
  • Material cost is slightly high
Construction cost Total : KRW 96,622 /㎡
classification Stone type block
Cross-sectional
Specification 1,000 X 1,000 X 250(22)
Construction slope
Picture
Method
  • Heavy block with natural stone pattern and some perforations or pores in large concrete block (1m*1m)
  • Connect and integrate by using the U-type block embedded in the block between the blocks
  • Fill the soil in the uneven surface and interspace of blocks to induce greening partly
Tractive force 340 kg/㎡
Flow velocity 7 m/s
Advantage
  • Prevention of green tide by removing water contaminants (phosphorus, 실소)
  • Use of natural minerals
  • Water quality maintenance period: 20 years (permanent for vegetation planting)
  • Fast construction due to equipment construction and easy on-site management
  • Good moisture retention due to the ring coupling among blocks
  • Heavy weight(280 to 380kg) with excellent water control capability
Disadvantage
  • Base and ceiling concrete are needed for construction
  • Difficulty with carry-in of materials and construction when it is difficult to secure access roads
Construction cost Total : KRW 99,666 (90,666) /㎡
(excluding the transportation cost)
classification Landscaping stone + coir roll
Cross-sectional
Specification
Construction slope 1:2.0 or higher
Picture
Method
  • It is advantageous for maintaining the linear shape of river in the case of sand revetment,etc.
  • Constant volume and elasticity
  • Quick rooting and creation of beautiful vegetation landscape
  • Creating various vegetation formation, and contributing to formation of waterside ecosystem
Tractive force 15 kg/㎡
Flow velocity 4 m/s
Advantage
  • Forming a multi-porous space for inhabitation of animals to provide a place for breeding and evacuation to fishes and aquatic insects
  • Soil sedimentary herbaceous plants grow in the crevice between the stones, creating a beautiful waterfront space.
  • Elastic and flexible to absorb impacts and maintain natural streamline shape of rivers
  • Providing perfect plant life conditions due to water adsorption of coir
Disadvantage
  • Irrigation is required until plant rooting at initial phase of construction
  • Restriction on revetment slope inclination
Construction cost Total : KRW 130,000 /㎡

Method Comparison Table4

classification Vegetation Formation Roll Union Stone Soil Mattress
Cross-sectional
Specification 300*400 Boulder anchor type (300 ~ 500mm) 2,000 X 1,000 X 300
Construction slope 1:1.0 ~ 3.0 1:1.5 or higher 1:1.0 ~ 5.0 or higher
Picture
Method
  • Lay the stopper stone on the foundation surface and lay the rolls.
  • Install the rolls naturally along the shape of revetment
  • Install 2 pieces of treated woods per square meter on the side of rolls and fix them.
  • Fix the coir ropes between the treated woods.
  • This is a product integrating the wire rope into natural stone and is formed by plants growing in natural stones and crevice, creating very beautiful landscape. In addition, various methods, such as revetment block, rift block, spur dyke block, etc., can be applied, depending on river conditions.
  • Fasten the mattress wire mesh to assemble it to withstand large tractive force, put the mattress solar bag in it, fill it with the soil from the site, cover the solar bag lid and install it
  • The mattress solar bag has seeds attached to it to form an ecological stream.
Tractive force 4.3 kg/㎡ or less 37.0 kg/㎡ 30 kg/㎡ or higher
Flow velocity 3.5 m/s 10.0 m/s 5.0 m/s
Advantage
  • Natural rubber coated on 'roll' mesh, increasing the durable life to over 10 years
  • It is easy to change the low waterway channels for meandering and easy to build
  • It provides soil erosion and scour prevention effect, and enables planting of various kinds of herbaceous flowers [waterside plants]
  • It is easy to induce real rooting through the filling of coir yarn, rice straw, pit, etc. (domestic filling) even when there is no irrigation
  • A variety of natural-type multifarious revetment can be formed in a way suited for rive environment, depending on the type, size, and arrangement of stones
  • Natural river scenery can be formed, blending harmoniously with plants growing in the cracks among natural rocks
  • As a product integrated with wire rope, it enables effective response at the site and provides excellent workability
  • Filling stones are not required. As the soil from the field is used, it can replace mattress net bags
  • With the vegetation rate of 100%, it enables excellent rooting of plants
  • It is suitable for installation in curvature channel with flow velocity of over 5.0m/s or any section with high flow velocity
  • It has high flexibility, providing high resistance to scour at the compacted area of bottom
  • As the soil from the field is used, it is easy to supply materials
Disadvantage
  • Reinforcing materials, such as felt, etc., need to be used at the back of roll in the area with high flow velocity
  • When vegetation is not very good, the best performance is difficult to be expected(particularly in dry stream)
  • The price is slightly higher than concrete products
  • Care needs to be taken when the slop face gradient is steep(1:1.0 or less)
  • Care needs to be taken for construction at curved section
Construction cost Total : KRW 122,866 /㎡ Total : KRW 164,400 /㎡ Total : KRW 53,000 /㎡
classification Vegetation Formation Roll
Cross-sectional
Specification 300*400
Construction slope 1:1.0 ~ 3.0
Picture
Method
  • Lay the stopper stone on the foundation surface and lay the rolls.
  • Install the rolls naturally along the shape of revetment
  • Install 2 pieces of treated woods per square meter on the side of rolls and fix them.
  • Fix the coir ropes between the treated woods.
Tractive force 4.3 kg/㎡ or less
Flow velocity 3.5 m/s
Advantage
  • Natural rubber coated on 'roll' mesh, increasing the durable life to over 10 years
  • It is easy to change the low waterway channels for meandering and easy to build
  • It provides soil erosion and scour prevention effect, and enables planting of various kinds of herbaceous flowers [waterside plants]
  • It is easy to induce real rooting through the filling of coir yarn, rice straw, pit, etc. (domestic filling) even when there is no irrigation
Disadvantage
  • Reinforcing materials, such as felt, etc., need to be used at the back of roll in the area with high flow velocity
  • When vegetation is not very good, the best performance is difficult to be expected(particularly in dry stream)
Construction cost Total : KRW 122,866 /㎡
classification Union Stone
Cross-sectional
Specification Boulder anchor type (300 ~ 500mm)
Construction slope 1:1.5 or higher
Picture
Method
  • This is a product integrating the wire rope into natural stone and is formed by plants growing in natural stones and crevice, creating very beautiful landscape. In addition, various methods, such as revetment block, rift block, spur dyke block, etc., can be applied, depending on river conditions.
Tractive force 37.0 kg/㎡
Flow velocity 10.0 m/s
Advantage
  • A variety of natural-type multifarious revetment can be formed in a way suited for rive environment, depending on the type, size, and arrangement of stones
  • Natural river scenery can be formed, blending harmoniously with plants growing in the cracks among natural rocks
  • As a product integrated with wire rope, it enables effective response at the site and provides excellent workability
Disadvantage
  • The price is slightly higher than concrete products
  • Care needs to be taken when the slop face gradient is steep(1:1.0 or less)
Construction cost Total : KRW 164,400 /㎡
classification Soil Mattress
Cross-sectional
Specification 2,000 X 1,000 X 300
Construction slope 1:1.0 ~ 5.0 or higher
Picture
Method
  • Fasten the mattress wire mesh to assemble it to withstand large tractive force, put the mattress solar bag in it, fill it with the soil from the site, cover the solar bag lid and install it
  • The mattress solar bag has seeds attached to it to form an ecological stream.
Tractive force 30 kg/㎡ or higher
Flow velocity 5.0 m/s
Advantage
  • Filling stones are not required. As the soil from the field is used, it can replace mattress net bags
  • With the vegetation rate of 100%, it enables excellent rooting of plants
  • It is suitable for installation in curvature channel with flow velocity of over 5.0m/s or any section with high flow velocity
  • It has high flexibility, providing high resistance to scour at the compacted area of bottom
  • As the soil from the field is used, it is easy to supply materials
Disadvantage
  • Care needs to be taken for construction at curved section
Construction cost Total : KRW 53,000 /㎡