The cost of constructing roads on mine sites is insignificant when compared to the cost of maintaining them. Geofabrics geosynthetics are used in roads to ensure the best construction performance using the site resources available, to both minimise construction costs and prevent costly maintenance disruptions.
Solutions for Roads and Working Areas
New Road - Construction on Soft Soil
EXPLORE THE SOLUTIONS ON THIS PAGE

NEW ROADS – CONSTRUCTING ON SOFT GROUND

New Roads - Reduce Imported Materials
NEW ROADS – REDUCING COSTS OF IMPORTED MATERIAL

NEW ROADS – REDUCING COSTS OF IMPORTED MATERIAL

Road maintenance
ROAD MAINTENANCE – LESS MAINTAINENANCE, HAUL CYCLE SPEEDS, TYRE WEAR

ROAD MAINTENANCE

Haul Road Construction
HAUL ROAD CONSTRUCTION

HAUL ROAD CONSTRUCTION

Underground Roads
UNDERGROUND ROADS

UNDERGROUND ROADS

Airport Runways
AIRPORT RUNWAYS

Airport Runways

Light Traffic Areas
LIGHT TRAFFIC AND TEMPORARY ACCESS

LIGHT TRAFFIC AND TEMPORARY ACCESS

Working platforms
Working Platforms

Working Platforms

Road Side Drainage
ROADSIDE DRAINAGE

ROADSIDE DRAINAGE

Coastal Protection
Solutions for Coastal Infrastructure

Solutions for Coastal Infrastructure

Geofabrics Roads and Wroking Areas diagram

Geofabrics Expertise in Roads and Working Areas

Geofabrics Australasia™ engages our world wide partners to provide solutions that encompass all road types, from temporary access tracks to high volume haul roads. Our expertise ensures the right geosynthetic product is selected to improve site specific ground conditions, and the performance of site soils available. This ensures maximum cost benefits for the client through less imported material, faster construction timeframes and less maintenance shutdowns. In the age of mine automation, better roadway surfaces translate to higher production volume output, and higher returns for investors.

The unique design conditions on mines requires roads that are generally unsealed, have low traffic volumes and may contain high load conditions. The footprint will often demand road construction over poor ground conditions, and using site soils brings huge economic benefit over ideal road building aggregates. Drainage is a key aspect and must be designed with site aggregates.

The wide range of Geofabrics roads solutions for mining incorporates different engineering design strategies and an understanding of specific site conditions is critical to project success. When a client requests a solution, the Geofabrics Mining Technical Hub will consider a range of products available, with specific design strategies that are backed by 35 years of project history to provide a recommendation that is technically better and more cost effective.

Our solution systems have been used extensively in mining applications around Australasia and the world, and are supported with extensive research and design support. If your problem has occurred previously, we know how to solve it, and if it is new, we want you as an industry partner to research and create a solution in our designated GRID R&D Laboratory.

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SPECIFIC TESTING / HISTORICAL TESTING / TECHNICAL PAPERS / CASE STUDIES
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New Road - Construction on Soft Soil

NEW ROADS
– CONSTRUCTING ON SOFT GROUND

The need to construct embankments and roads over structurally weak ground is regularly encountered both for new mine infrastructure development and rehabilitation of waste storages. Geofabric’s solutions;

  • Enable site access for people and machines by building on the right Geogrid, Geoweb or High Strength Geotextile. Turnkey expertise is required as design must link to the installation process to maximise performance.
  • A High Strength Geotextile or Geogrid to provide reinforcement, will separate ground soils from introduced material and provide reinforcement and key drainage functions.
  • A Geoweb or Geogrid Stabilisation Solution to improve structural performance of the available road building material, facilitates superior road performance with poor soils, and thinner depth pavements when used with ideal road building aggregates.
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FEATURED PRODUCTS

TenCate High Strength Geotextiles on Extremely Soft Soils

TenCate high strength geotextiles can be laid directly on low bearing capacity soils to increase the shear strength of the fill material and see an increase in foundation bearing capacity. This enables rapid site access and construction, ordinarily only achieved through high volumes of imported soil, left to consolidate over an extended period.

The Geotextile both separates introduced material and provides a reinforcement function, so understanding the soil parameters and installation method onsite is critical to correct Geotextile selection. For critical tailings applications design must consider the Polymer utilised to manufacture the product, which will see loss of tensile performance if incompatible to site chemistry. The Geofabrics GRID and Technical Hub are well versed to support with this expertise.

Tensar Geogrid Mechanical Stabilisation

The Tensar TriAx  is the most advanced geogrid in today’s market and the result of 30 years continual innovation and development in designing superior Roads, Embankments and Working Platforms . The key Tensar design principle is to mechanically stabilise pavement aggregates that interact with the Geogrid, which results in a positive shear response through the pavement depth and a structurally superior formation. To achieve maximum benefit, the choice of Geogrid must be designed to the site soils available, and linked to the construction process and load conditions. The net result is a site-specific cost saving by implementing a thinner pavement that achieves the same performance, or the same depth road with far less rutting potential and surface maintenance interruptions.

GEOWEB Mechanical Stabilisation

A Geoweb Cellular Confinement System can be laid above a bidim geotextile, to provide a surface stabilisation system for road building over soft ground conditions. The structure distributes surface stresses extremely effectively to prevent rutting at the surface, whilst also allowing thin pavement construction using low quality soil. When filled with granular material, the Geoweb can provide a free drainage pavement layer with high performance. It is especially useful to repair localised areas that experience repeat rutting or loss of service condition.

Geofabrics bidim or High-Strength Geotextile Drainage Blankets

Road and embankment construction over soft ground will often lead to release of groundwater that can impact structural performance. The use of bidim nonwoven or TenCate High Porosity Geotextiles enclosing a granular drainage layer will relieve pore water pressure, and enable linear consolidation over time. The choice of a nonwoven bidim or High Strength Woven is critical to enable a geotextile structure that resists mechanical damage, but has superior filtration performance. The choice of Geotextile is designed to the damage potential of aggregate available, with specific filter properties for site soils. The Geofabrics GRID Technical Hub can provide historic expertise and review the opportunity to test with site specific materials in this regard.

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New Roads - Reduce Imported Materials

NEW ROADS
– REDUCING COSTS OF IMPORTED MATERIAL

Compared to conventional construction methods, the use of geosynthetics at the subgrade or within the pavement is an effective design option to reduce pavement thickness and lower the volume costs of sourcing ideal construction material.

The solution with most cost benefit will challenge traditional road design with aggregate alone, so requires both design expertise and project history that Geofabrics can provide.

  • The solutions of either a Geotextile, Geogrid or Geoweb can be evaluated by desktop, but the real economic benefit is achieved by applying actual site conditions.
  • Analysis of subgrade conditions, road building aggregates available, and traffic volumes and type, will link to a Geosynthetic product that provides maximum economic and environmental benefits.
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Tensar Geogrid Mechanical Stabilisation

The Tensar TriAx  was developed from 30 years of testing and empiricism, to establish a Geogrid structure that interacts most efficiently with road building aggregates, and maximises their structural performance. The result is a thinner pavement depth with Tensar Geogrid inclusion that performs the same as the full depth granular material.

The cost benefit achievable is a function of the interaction between Geogrid type and aggregate available onsite. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geogrid selection, and with our industry partner Tensar International can ensure the solution that provides the best cost benefits

Ten Cate High Strength Geotextiles – Maximising Insitu conditions

TenCate high strength geotextiles can be laid directly on low bearing capacity soils to reinforce the shear stresses of the fill material and observe an increase in foundation bearing capacity. This increase in bearing capacity is normally only achieved by introducing high volumes of imported soil, which present as costly, unsafe and environmentally less friendly. The Geotextile both separates and provides a reinforcement function, so understanding the soil parameters and construction method onsite is critical to ensuring correct Geotextile selection. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in these critical design parameters and with our industry partner Ten Cate Geosynthetics can ensure the solution provides the best cost benefits.

Geoweb Pavements – Utilise Insitu Soils to Build Roads

The Geoweb system consists of a robust three-dimensional structure housing a network of interconnected cells that confine road building soils. The confinement action prevents erosion and improves the structural performance of soils traditionally not preferred by designers for road building. The cost benefit is a road that is structurally better with less depth of pavement, and presents the option to build roads from cheaper, locally sourced soil material. The Geoweb cellular 3-D confinement system comes in collapsed, lightweight panels which can be rapidly deployed easily and safely onsite, ideally suited to build roads not constructable to traditional methods.

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Road maintenance

ROAD MAINTENANCE
– LESS MAINTAINENANCE, HAUL CYCLE SPEEDS, TYRE WEAR

The effect of Geosynthetic reinforcement serves to prevent surface rutting, which is the key economic driver in terms of road serviceability and automated fleet performance.

  • For the same depth of pavement with a Geogrid or Geoweb inclusion, surface deflection and rutting will increase the asset maintenance intervals by up to 500%.
  • This results in reduced labour and plant costs but also haul cycle speeds that are critical to production output are maintained as planned.
  • For temporary and low traffic roads onsite, a thin pavement that incorporates a Geosynthetic can enable access rapidly, reduce the need for large volumes of imported material and limit environmental impacts of full depth construction.
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Tensar Serviceability Improvement

The unique properties of TriAx Geogrids offers engineers, contractors and owners a solution that extends the service life of a pavement structure, sometimes by as much as 500%. This feature offers reduced maintenance and extends rehabilitation intervals which yields significant life cycle cost savings over conventional solutions. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geogrid selection, and with our industry partner Tensar International can ensure the solution that provides the best cost benefits.

PRESTO International Geoweb Serviceability Improvement

The Geoweb system consists of a robust three-dimensional structure housing a network of interconnected cells that confine road building soils and prevents surface rutting. The GEOWEB system can provide a 3% rolling resistance with little to no maintenance compared to the typical 8% rate at which most mine roads operate resulting in reduced fuel consumption. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geoweb selection, and with our industry partner can ensure a solution that provides the best cost benefits.

Geofabrics Megaflo Drainage

Good road drainage is a primary factor in maintaining road serviceability. The Megaflo® drainage system is a cheaper alternative to traditional roadside drainage systems. Megaflo® halves the installation time required for traditional methods and only requires a narrow trench, so installation and material costs are significantly reduced. 
Megaflo® is widely used in critical applications, because of its high compressive strength under mining loads and high flow velocity means less risk of siltation. It can be used with site sands rather than costly drainage aggregate when designed correctly. 

The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that can assist with the right Megaflo® Pipe and Geotextile choice to maximise performance on your specific site.

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Haul Road Construction

HAUL ROAD CONSTRUCTION

The key aspect of Haul Road design is to ensure minimise rutting and road surface changes that will impact traffic movements and cause interruptions. The cost impacts on production of reducing truck speeds and “wear and tear” of haul fleets is well in excess of the costs of good haul road construction. 

A carefully chosen Geogrid or Geoweb can be used to mechanically confine the aggregate that is used to construct the road and prevent it moving laterally under traffic loads. This results in a surface that is more resistant to rutting and surface deflections, requiring less maintenance, better OHS management and less dust generation. There is also potential to create pavements with less depth of aggregate material, maximising the use of readily available site soils. 

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FEATURED PRODUCTS

Tensar Serviceability Improvement

The unique properties of TriAx Geogrids offers engineers, contractors and owners a solution that extends the service life of a pavement structure, sometimes by as much as 500%. This feature offers reduced maintenance and extends rehabilitation intervals which yields significant life cycle cost savings over conventional solutions. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geogrid selection, and with our industry partner Tensar International can ensure the solution that provides the best cost benefits.

PRESTO International Geoweb Serviceability Improvement

The Geoweb system consists of a robust three-dimensional structure housing a network of interconnected cells that confine road building soils and prevents surface deflection. The GEOWEB system can provide a 3% rolling resistance with little to no maintenance compared to the typical 8% rate at which most mine roads operate resulting in reduced fuel consumption. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geoweb selection, and with our industry partner PRESTO International can ensure a solution that provides the best cost benefits.

Geofabrics Megaflo Drainage

Good road drainage is a primary factor in maintaining road serviceability. The Megaflo® drainage system is a cheaper alternative to traditional roadside drainage systems. Megaflo® halves the installation time required for traditional methods and only requires a narrow trench, so installation and material costs are significantly reduced.

Megaflo® is widely used in critical applications, because of its high compressive strength under mining loads and high flow velocity means less risk of siltation. It can be used with site sands rather than costly drainage aggregate when designed correctly.

The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that can assist with the right Megaflo® Pipe and Geotextile choice to maximise performance on your specific site.

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Underground Roads

UNDERGROUND ROADS

Underground roads are critical to production and operational efficiency, and road maintenance is significantly challenge by the space to operate and material available to construct. It is often geotechnical anomalies and incorrect drainage that creates areas of high subsidence or instability, as well as unacceptable surface rutting. A regular Geosynthetic solution implemented can use Geogrid and Geoweb stabilisation methods with site infill material to prevent surface rutting. This also allows improved performance for thinner pavement depths, which are critical when considering operating heights available. Geotextiles can also be used to bridge subsidence created by the impacts of blasting stopes or roadways either above or below the area of concern. The construction of thin underground pavements requires key inputs from the Geofabrics Mining Technical Hub, but can lead to significant maintenance cost savings when implemented correctly.

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PRESTO International Geoweb with Insitu Infill

The Geoweb system can confine road building soils and prevent surface deflection. Their use underground allows thin road construction using soils insitu to achieve the same pavement strength as ideal aggregates. The inclusion of granular material also allows road construction over areas that have significant drainage problems, enabling free drainage of surface water and minimal impact on road serviceability. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geoweb selection, and with our industry partner PRESTO International can ensure a solution that provides the best cost benefits.

High Strength Geotextiles, Geogrids and Geoweb over Voids

Areas in underground roadways or stopes may observe subsidence due to Geotechnical instability during blasting or drilling operations. Geosynthetics have a long history of bridging voids in road construction by bridging areas of challenging ground. High strength geotextiles, Tensar Geogrids and Geoweb all can be used to bridge voids depending on the site conditions and available soil and rock material. The Geofabrics Mining Technical Hub would need to review specific site conditions to partner up on these high risk solutions generally.

Geofabrics Megaflo Drainage

Good road drainage is essential underground to prevent road maintenance. The Megaflo® drainage system is a cheaper alternative to traditional roadside drainage systems. Megaflo® halves the installation time required for traditional methods and only requires a narrow trench, so installation and material costs are significantly reduced.

Megaflo® is widely used in critical applications, because of its high compressive strength under mining loads and high flow velocity means less risk of siltation. It can be used with site sands rather than costly drainage aggregate when designed correctly. 

The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that can assist with the right Megaflo® Pipe and Geotextile choice to maximise performance on your specific site.

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Airport Runways

AIRPORT RUNWAYS

For airport runways, the important aspect is to limit surface rutting that could impact the ability of air traffic to take off and land. It is rarely the loads that determine runway performance onsite, it will be a structural or drainage problems within or surrounding the pavement. The incorporation of pavement reinforcing Geotextiles and Geogrids will limit structural issues translating to surface rutting, and a well-designed site drainage system will limit the damaging effects of water.

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Tensar TRiax

The unique properties of TriAx Geogrids offers engineers, contractors and owners a solution that extends the service life of the airport pavement structure, sometimes by as much as 500%. This feature offers reduced maintenance and extends rehabilitation intervals which yields significant life cycle cost savings over conventional solutions. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geogrid selection, and with our industry partner Tensar International can ensure the solution that provides the best cost benefits.

Sealed Runways - Asphalt Reinforcement

Asphalt pavements that suffer fatigue cracking, exhibiting high severity oxidation and ravelling will at some point require rehabilitation. Geofabrics has solutions for Asphalt reinforcement to lengthen the life of the wearing surface, which is critical when asphalt sources are significant distances away. The choice of Tensar AR Grids or fibreglass reinforcing grids will depend on the site pavement needs, the Geofabrics Mining Technical Hub and GRID Laboratory is available for recommendations in this regard.

Geofabrics Megaflo Drainage

Good runway drainage is essential to prevent maintenance. The Megaflo® drainage system is a cheaper alternative to traditional roadside drainage systems. Megaflo® halves the installation time required for traditional methods and only requires a narrow trench, so installation and material costs are significantly reduced.

The Geofabrics Mining Technical Hub and GRID Laboratory can also assist with surface erosion treatments and surface water erosion controls, to ensure that stormwater management links to critical design parameters that can assist with the right Megaflo® Pipe and Geotextile choice to maximise performance on your specific site.

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Light Traffic Areas

LIGHT TRAFFIC AND TEMPORARY ACCESS

There are a range of Geosynthetic Solutions that can be laid on existing soils to enable thin pavements to carry significant loads. This allows rapid road construction for drilling rig access, low impact traffic roads and temporary access roads. The key aim here is to introduce a Geosynthetic solution that does not require extensive excavation or movement of road building materials and provides significantly less environmental impacts whilst achieving the required trafficable performance.

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Tensar Geogrid Mechanical Stabilisation

Geogrid reinforcement materials and separation geotextiles are used to redistribute the tensile forces within the road and prevent the mixing of fines and coarse aggregate. The increased road strength allows thin pavements to be constructed with a Geogrid over soft ground or for light traffic environments.

High Strength Geotextiles – Constructing Embankments with Site Rock

TenCate high strength geotextiles can be laid directly on low bearing capacity soils to increase foundation bearing capacity. This enables rapid site access and construction, ordinarily only achieved through high volumes of imported soil. The right Geotextile choice both separates introduced material and provides a reinforcement function, a product with high damage factor resistance  enables the use of rock that would ordinarily be sent to the waste dump. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience to enable the right product to maximise rock available and achieve project design intent.

PRESTO International Geoweb with Insitu Infill

The Geoweb system confines road building aggregates and prevent surface deflection of thin pavements. Their use allows thin road construction using onsite soils available to achieve the same performance as full depth aggregate pavements. The inclusion of granular material also allows road construction over areas that have significant drainage problems, enabling free drainage of surface water and minimal impact on road serviceability. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geoweb selection, and with our industry partner PRESTO International can ensure a solution that provides the best cost benefits.

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Working areas - working platforms

WORKING PLATFORMS / OPERATIONS / STOCKPILE AREAS

The working and high traffic areas of a mine, must ensure that the road or hardstand surface does not require excessive maintenance. The effect of Geosynthetic reinforcement and drainage serves to prevent surface rutting, which is the key economic driver in terms of road serviceability and automated fleet performance.

  • For the same depth of pavement with a Geogrid or Geoweb inclusion, lineal settlement prevents surface deflection and rutting to increase the asset maintenance intervals.
  • The result is a surface that exhibits less rutting and tyre maintenance, reducing labour and plant costs but also maintaining mine operations critical to production output.
  • Drainage is a critically overlooked, Geofabrics has extensive experience in drainage design that is a high contributing factor to road surface degradation.
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Tensar Serviceability Improvement

The unique properties of TriAx Geogrids offers engineers, contractors and owners a solution that extends the service life of a pavement structure, sometimes by as much as 500%. This feature offers reduced maintenance and extends rehabilitation intervals which yields significant life cycle cost savings over conventional solutions. 

The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geogrid selection, and with our industry partner Tensar International can ensure the solution that provides the best cost benefits

PRESTO International Geoweb with Insitu Infill for local instability

The Geoweb system consists of a robust three-dimensional structure housing a network of interconnected cells that can prevent rutting in thin road construction or remediate local areas of instability. The inclusion of granular material also allows free draining of hardstand areas that have significant drainage problems, enabling free drainage of surface water and minimal impact on road serviceability.

The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geoweb selection, and with our industry partner PRESTO International can ensure a solution that provides the best cost benefits.

Geofabrics Megaflo® Drainage

Good road drainage is a primary factor in maintaining road serviceability. The Megaflo® drainage system is a cheaper alternative to traditional roadside drainage systems. Megaflo® halves the installation time required for traditional methods and only requires a narrow trench, so installation and material costs are significantly reduced. Megaflo® is widely used in critical applications, because of its high compressive strength under mining loads and high flow velocity means less risk of siltation. It can be used with site sands rather than costly drainage aggregate when designed correctly. 

The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that can assist with the right Megaflo® Pipe and Geotextile choice to maximise performance on your specific site.

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Roadside Drainage

ROADSIDE DRAINAGE

Geofabrics has expertise to recommend the most suitable Geosynthetic to address drainage impacts that affect your roads and operating areas. The impact of good drainage is significantly underestimated in terms of its ability to cause service life issues through structural failure both observed in rutting and potholes. Geofabrics has specialist products and design support to understand and evaluate drainage problems onsite.

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Geofabrics Megaflo Drainage

Good road drainage is essential to maintain roads at optimal performance levels and often overlooked in new road construction. The Megaflo® drainage system is a cheaper alternative to traditional drainage systems. Megaflo® halves the installation time making it ideal for projects with tight construction deadlines. The Megaflo® drainage system requires only a narrow trench or less deep trench than round pipe, so installation costs are significantly reduced. Because of its stiff structure and high flow velocity, there is also less risk of siltation.

The Megaflo® panel profile is widely used in mining applications because of its high compressive strength and can be manufactured with various polymers according to the mine chemistry onsite, which is critical to ensure drainage performance. 

Drainage Geocomposites below Pavements

When building roads in areas that interrupt natural water courses, or are susceptible to elevated groundwater volumes, the use of a Drainage Geocomposite that consists of a Geonet with bidim Geotextiles both sides, can be used to drain subsurface water without allowing it to impact on pavement structure. If volumes are higher, a Geoweb Cellular Confinement System can incorporate free draining aggregates to drain and provide a positive reinforcement property to ensure road longevity. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geocomposite and Geoweb selection, and with our industry partner PRESTO International can ensure a solution that provides the best cost benefits.

Roadside Channel Drains

Good channel design requires sediment retention of the subgrade. When designing open channels onsite, the use of Geofabrics bidim® geotextiles is critical to resist erosion due to surface velocities. The choice of Geotextile will be determined by the channel rip-rap properties to ensure rock placement does not cause unacceptable damage and loss of function.

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SOLUTIONS FOR COALSTAL INFRASTRUCTURE
New Ports - Construction on Soft Ground
New Ports - Access over Soft Grounds

New Ports - Access over Soft Grounds

Coastal Protection
New Ports - Coastal Protection

New Ports - Coastal Protection

Haul Road Construction
Return to Roads and Working Areas

Return to Roads and Working Areas

Ports access over soft ground

New Ports
- Access Over Soft Ground

The need to construct embankments and roads over structurally weak ground in tidal zones or on the sea floor in coastal environments is regularly encountered in the development of port infrastructure.

Geofabric’s solutions;

  • Enable embankment and bund construction in alluvial tidal environments or on the seafloor by increasing the bearing capacity through the deployment of the right Geotextile. 
  • A High Strength Geotextile or Geogrid to reinforcement can bridge intermittent low bearing soils ensuring lineal settlement and embankment performance over time.
  • A Geoweb or Geogrid Stabilisation Solution to improve structural performance of the available road building material, facilitates superior road performance with poor soils, and thinner depth pavements when used with ideal road building aggregates.
  • Geofabrics has extensive experience in barge deployment to achieve installation in sub-aqueous conditions, the installation process must link to design to maximise performance. 
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Geotextiles for Construction in Coastal Zones

TenCate high strength or Geofabrics Texcel® Non-woven geotextiles can be laid directly on tidal flats that have intermittent geotechnical properties or directly on the seafloor to provide a reinforcement function to increase foundation bearing capacity. This allows rapid access, and a reduction in volume of construction aggregates and soils which are the critical economic driver to project success.

The Geotextile selection must consider both the interaction with the soil in this case, but different Geotextile types will both float and sink according to the polymer chosen. This results in a design that cannot be separated from the installation process, and Geofabrics extensive experience in coastal and subsea installations is critical to success.

Tensar Geogrid Mechanical Stabilisation

Tensar Geogrids and separation geotextiles are used to redistribute the tensile forces within the road and prevent the mixing of fines and coarse aggregate. The increased road strength allows thin pavements to be constructed with a Geogrid over soft ground or for quick access in coastal applications. When the full pavement depth is constructed, Tensar Geogrids provide a mechanical stabilisation function within the embankment, that results in significant cost savings and volume of the soil material required. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geogrid selection, and with our industry partner Tensar International can ensure the solution that provides the best cost benefits.

PRESTO International Geoweb Pavements Over Poor Tidal Soils

The Geoweb allows thin depth pavements to be constructed over inconsistent coastal soils to achieve the same performance as full depth pavements. The inclusion of granular material also allows road construction over areas that have significant drainage problems, enabling free drainage of surface water and minimal impact on road serviceability. The Geofabrics Mining Technical Hub and GRID Laboratory has extensive experience in critical design parameters that enable correct Geoweb selection, and with our industry partner PRESTO International can ensure a solution that provides the best cost benefits.

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Coastal protection

New Ports
- Coastal Protection

Geofabrics geosynthetics are a critical component within revetments used to protect critical port infrastructure from coastal and estuarine erosion.

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Geotextile Coastal Revetments

The use of Geofabrics Texcel Nonwoven geotextiles beneath coastal rock revetments is critical to prevent erosion of fine sediments and siltation of surrounding waterways. The Geofabrics GRID has extensive research data to ensure the right geotextile is selected according to the rock available onsite. This includes drop heights and installation methodology, which is critical. 

Geofabrics Elcorock Bunds and Revetments

Because of their strength and flexibility, Elcorock geotextile containers are widely used in the construction of sea walls. They have several advantages over traditional sea wall methods including reduced beach contamination from loose rock. Containers can be filled with sand and other easily sourced materials, and the system improves the general amenity of the area.

Temporary Bunds: The Elcorock container structure is a fast, economical way of building bunds or temporary emergency works, which are easy to remove once the structure has served its purpose. It is suitable for installation even in difficult areas and under tough conditions.

Erosion Mats to Prevent Waterway Sedimentation

The prevention of surface erosion around dams and coastal waterways can be cleverly prevented by the use of Geosynthetic Erosion blankets. The Geofabrics GRID Laboratory has longevity data to ensure that the erosion solution chosen, meets the design life required. The choice is often a short term biodegradeable Jute option, or synthetic long term Grassroots option.

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