cellular confinement

Geoweb®Cellular Confinement System

INFILL OPTIONS

A variety of infill materials can be used based upon details of the specific project/problem:

•topsoilwithvariousselectedvegetation

•aggregatesfromsandandgraveltolarger rock or stone

•concreteofvariousstrengthsandsurfacefinishes

•on-siteavailablefill

•combinationsoftheabovetomeetproject special conditions

advancing geotechnology

For the most advanced soil stabilisation technology today, rely on Presto’s Geoweb® cellular confinement system for solving challenging soil stability problems.

highest quality products /solutions

GEOWEB® system and components

methodologies, creative applications, and proven field results that provide long-term solutions to unique and difficult problems.

Presto leads the cellular confinement industry in research and development resulting in meaningful product improvements, innovative features, advanced engineering

complete manufacturing process adheres to a quality management system certified to ISO 9001:2000, assuring consistent quality products.

Presto takes pride in providing highest quality products and solutions. Geoweb® sections are manufactured from high-quality polyethylene to achieve maximum seam weld strength and overall system performance. And the

System components include:

•theperforatedGeoweb® section

•thespecificinfillmaterial

•ATRA® anchoring components

•engineeredtendonreinforcement(whenapplicable)

•othercritical,value-addedcomponents

TheGeoweb® system is an engineered, high-strength network of interconnected cells that confines and stabilises soils.TheGeoweb® system provides innovative solutions to challenging soil stability problems in slope and channel protection, load support and earth retention applications.

Please read the important notice at the end of this brochure

channel protection system

channel, slope, and shoreline•Perforationsfacilitateparallelslopedrainage

of the infilled cell. In saturated conditions, the removalofexcesswaterincreasesinfillfriction,reducingdownslopeslidingforces,resultinginamore stable system.

•Invegetatedsystems,perforationsallowrootstogrowfromcell-to-cellcreatinggreatervegetativestabilityagainstshort-termhydraulicevents.

TheGeoweb® channel protection system provides a wide variety of flexible protection treatments for open channels and hydraulic structures.Thesystemprovidesstabilityandprotectionofchannelsexposed to erosive conditions ranging from low-to-high flows either intermittent or continuous.

•Greatlyimprovesthehydraulicperformanceofconventionalprotection materials such as aggregate, rip-rap and vegetation by confining them within the cellular structure.

•Canproduceaflexibleconcreteslabforalow-friction,armored channel lining.

•Canbedesignedforspecificsiteconditionsbaseduponcompatibility with local environmental, ecological and aesthetic requirements, maximum anticipated flow, and associated hydraulic stresses.

•Surfaceroughnessandhydraulicefficiencyoftheliningsystemcan be changed to control flow.

•Subgradedrainagerequirementsanddeformationpotentialwithin the structure can also be addressed.

TYPICAL APPLICATIONS

•swalesanddrainageditches

•stormwaterdiversionorcontainment

•processwaterchannels

•spillways/downchutes/dropstructures

•culvertoutfalls

•intermittentorcontinuous/lowtohighflowchannels

slope & shoreline protection systemTheGeoweb® slope and shoreline protection system confines, reinforces and restrains the upper soil layer and infill controlling down-slope movement and slippage due to hydrodynamic and gravitational forces.

•Provideseffectiveslopeprotectionandstructuralconfinement of granular materials such as sand, gravel and larger rock or stone.

•Becomesaflexibleconcretematwithbuilt-inexpansionjoints when cells are infilled with concrete.

•Meetsawiderangeofstructuralandhydraulicrequirementsas single or multi-layered systems.

•Createsadditionalstabilitybyintegratingtendonsonsteeper slopes and shoreline embankments or when a geomembraneorhardsoil/rocksurfacepreventsanchoringwith stakes.

TYPICAL APPLICATIONS

•cutorfillembankmentslopes

•shorelinerevetments

•stormwater/waste water lagoons

•containmentdikes&levees

•geomembraneprotection

•landfillliningsandcovers

•damfacesandspillways

•abutmentprotection

benefits of

•Withconcreteinfill,perforationsallowinfilltointerlockwiththecellwalls,increasingfrictionalresistance,creatingabetterarmoredslope.

•Withaggregateinfill,perforationscreategreaterfrictionalresistancebetweeninfillmaterialsandthetextured/perforatedcellwall,resultingingreaterresistancetohydraulicscour.

earth retention systemTheGeoweb® system, when layered, becomes an earth retention system meeting all project-specific structural requirements.Thesystemallowsforconstructionflexibilityand provides aesthetics through a completely vegetated face. Horizontal terraces are formed where vegetation can flourish intheexposedoutercellinfill.Thesystemcapturesrainwaterand controls groundwater evaporation, creating a more natural environment for vegetation.

•Maintainsstructuralstabilityagainstallloadingthrough its mass and frictional values of the infill.

•Meetssitechallengeswhensubgradesoilsarecompressible or construction is in difficult-to-access locations.

•Createsblendingwithanyenvironmentthroughuseoftan,green or special-colored facia panels.

TYPICAL APPLICATIONS

•bioengineeredwalls

•steepenedembankments

•dike&leveeprotection

•culvertheadwalls

•landscapedevelopmentwalls

•vegetatedchannelstructures

•soundbarriers

earth retention

perforations

•Perforationsimprovefrictionalinteractionbetweenthetextured/perforatedcellwall,creatinggreaterbackwallfriction,potentiallyreducinghorizontaldestabilisingforcesandincreasingverticalstabilisingforces.

•Perforationscreateabetterfull-walldrainedsystemthatsignificantlyreduceshydrostaticforces,resultinginmoreeconomicalwalldesigns.

load support system

TYPICAL APPLICATIONS

•permanentandtemporarysiteaccessroads

•permeable,load-supportingsurfaces

•intermodal/portfacilities

•transportation/storageyards

•roadwayshoulders

•stabiliseddrainagelayer

•stabilisedbaseforasphalt/modularblockpavements

•trackballastandsubballaststructures

•trailsandwalkways

•boatrampsandlowwatercrossings

•foundationmattresses&pipelineprotection

•trenchinverts

TheGeoweb® load support system stabilises the selected infillandprovidessolutionsinthreekeyareas:1)aloaddistributionsystemoverweaksoils,2)basestabilisationforpavedsurfacesand3)surfacestabilisationforunpavedsurfaces.Confinedinfillinthesystemproducesastifflayerwith high flexural strength.

•Significantlyminimisessurfacerutting.

•Distributesloadslaterallyandreducesverticaldeflectionand subgrade contact pressures.

•Controlsshearingandlateralmovementofthecoarseand permeable infill material.

•Withopenaggregateinfill,reducesstormwaterrunoffandcreateson-sitewaterdetention/retentionbasin.

•Inmostcases,theGeoweb® system doubles the effective structural number for load support.

•Perforationsandatexturedsurfaceincreasethefrictionanglebetweenaggregateinfillandthecellwall,generatingbetteraggregatelockupandgreateroverallloaddistribution.

•Perforationsfacilitatelateralcell-to-celldrainageofexcessivegroundandsurfacewater,reducingthenegativeeffectsoftraffickingoversaturatedsoils.

load support

Geoweb® sections are available in various cell types and depths, and section lengths to most economically meet project requirements.

GEOWEB® system standard sizes

Tendons,ATRA®AnchorsandATRA®Load-RestraintClipsmaybeintegrated to meet engineering requirements:

TENDONS Tendonsmayberequiredandareavailableinvarioustensilestrengths tomeetspecificrequirements.Theuseoftendons:

•Providesadditionalstabilityagainstgravitationaland hydrodynamic forces.

•Isparticularlyeffectiveonsteeperembankments,wherehighflowsexistorwhenageomembraneunderlayerorhardsoil/rockpreventsanchoring with stakes.

ATRA® ANCHORS Presto’sATRA®Clipprovidestimeandmaterialcostsavingsduring installation of the Geoweb®system.(1)

•Usedwith½ inchrebarstakes,ATRA® Anchors are easier to drivethanJ-hookstakes,improvinginstallationproductivity.(4)

•TendonsandanATRA® Anchor array provide additional anchoringtoresistslidingand/orupliftforces.(2)

•Specialiseddrivingtoolsareavailable tosignificantlyspeedthedrivingofanchors.(5)

ATRA® RESTRAINT CLIP TheATRA®Clipbecomesaload-transfermechanismwhenconnectedtotendonsatspecificload-transferpoints.(3)

Typeandspacingoftendonsandanchorsaredeterminedthroughanalytical methods available through Presto Geosystems.

Other components may include an underlying geotextile separation layerand/orimperviousgeomembranelayer,geogrids,anerosioncontrol blanket, turf reinforcement mat or other surface treatments.

integral system components

Cell TypeSectionWidth

SectionLengthRange CellsLong:29

Variable Minimum Maximum

GW30V2.3m(7.7ft)to 2.8m(9.2ft)

7.6m(24.8ft) 9.1m(30.0ft)

Available cell depths

75mm(3in),100mm(4in),150mm(6in),200mm(8in)

Cellsizeanddeptharedeterminedbythedetailsoftheapplication,problemordesiredsolution.

RefertotheGeoweb® material specification for more information.

Nominal Cell Area ±

1%

460 cm2 (71.3 in 2)GW

30VCell

Type

287 mm

(11.3 in) ± 10%

320 mm (12.6 in) ± 10%

3

4 5

2

1.ATRA®Clip2.ATRA® Anchor with tendon3.ATRA®RestraintClip4.ATRA® Anchor5.ATRA® Anchor and specialised driving tools

1

comprehensive tools and services

PRESTO GEOSYSTEMS’ COMMITMENT — To provide the highest quality products and solutions.

PRESTOGEOSYSTEMS P.O.Box2399 670NorthPerkinsStreet Appleton,Wisconsin54912-2399,USA

P: 920-738-1707 TF:800-548-3424

F: 920-738-1222

E: info@prestogeo.com

www.prestogeo.com

DISTRIBUTED BY:

Geosystems®, Geoweb®, ATRA®, and SPECMaker® are registered trademarks of Presto Products Co. Creating sustainable environments™ is a trademark of Presto Products Co. This information has been prepared for the benefit of customers interested in the Geoweb® cellular confinement system. It was reviewed carefully prior to publication. Presto assumes no liability for its accuracy or completeness. Final determination of the suitability of any information or material for the use contemplated, or for its manner of use, is the sole responsibility of the user.

PrestoGeosystemsanditsdistributors/representativesoffer the most-complete services in the industry to support project design and installation requirements.

TOOLS: •Technicalresourcesbinder/CD

•Engineeringanalysis/technicaloverviews

•OnlineSPECMaker® specification development tool

•Projectcasestudies

•Detailedconstructioninstructions

SERVICES: ProjectEvaluationService:Weanalysespecific project needs and provide recommended preliminary designs for each project.

Construction Services: Qualified on-site field support specialists can be available for construction training, and start-up installation supervision.

Presto Geosystems is committed to helping you apply the best solutions to your soil stabilisation problems. Our solutions-focused approach to solving problems adds valuetoeveryproject.Relyontheleadersintheindustrywhen you need a solution that is right for your application. ContactPrestoGeosystemsorPrestoGeosystems’worldwidenetworkofknowledgeabledistributors/representatives for assistance.

UNSURPASSEDQUALITY Presto’s commitment to quality begins with manufacturing and continues through final installation.

•QualitymanagementsystemcertifiedtoISO9001:2000.

•Sectionsmanufacturedfromhigh-qualitypolyethyleneprovides consistent and maximum seam weld strength.

•Materialsengineeredtoestablishedgeosynthetic industry guidelines.

•Sectionsbackedbya10-yearlimitedwarranty.

IMPORTANT NOTICE

The information contained in this brochure is general in nature. In particular the content of this brochure does not take account of specific conditions that may be present at your site. Site conditions may alter the performance and longevity of the product and in extreme cases may make the product wholly unsuitable. Actual dimensions and performance may vary. If your project requires accuracy to a certain specified tolerance level you must advise us before ordering the product from us. We can then advise whether the product will meet the required tolerances. Where provided, installation instructions cover installation of product in site conditions that are conducive to its use and optimum performance. If you have any doubts as to the installation instructions or their application to your site, please contact us for clarification before commencing installation. This brochure should not be used for construction purposes and in all cases we recommend that advice be obtained from a suitably qualified consulting engineer or industry specialist before proceeding with installation. © Copyright held by Geofabrics Australasia Pty Ltd. All rights are reserved and no part of this publication may be copied without prior permission.

www.geofabrics.com.au

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