Everythingtailor-made

Geocells

environment friendly technologies

Whygeocells?Thecellularconfinementsystemwasdevelopedinthelate1970saspartofascientificresearchofPrestoProductCo.with the U.S. Army Corps of Engineers. This method wasusedasapioneeringprojectinoperationDesertStormdur-ingthePersianGulfWar. Cellularconfinementsystemimprovestheperformanceofsuchcohesionlessmaterialsasgravelorsand.Byconfin-ingthematerial,thegeosyntheticstructureenablesalsotheproperdensityofcompaction. The main elements of this system are open sectionsfilled with various infill materials. This infill improvementhelps to eliminate the need for more costly, complicatedstructural elements or expensive techniques. Cellular con-finementsystemprovidesoptimalsolutionsforpoorcarry-ingcapacityofsoilandatthesametimecost-effectivesoilstabilizationresults. CellularconfinementsystemhasbeenpopularonthePolishmarketasgeocellsorgeokrata,fabricatedusingme-dium-densitypolyethylene(MDPE)orhigh-densitypolyeth-ylene(HDPE)whichisclassifiedasnon-hazardousproduct.Itsoperatingtemperaturerangesfrom–50°Cto+80°C,itsmeltingpointcanvaryfrom+125°Cto+132°C. Theplastic and itsproduct itself arenot regardedasdangeroustohealth.Also,thankstoitsinsolubilityinwaterandchemical resistance (also insoil) it is regardedasnotpresentingarisktotheenvironment.

Single cell view

d=75,100,150or200mm

W

210

mm

stan

dard

cell

L

Section expanded

Cellular confinement system popular on market as geocells in two variants:•cellularconfinementsystemfromnon-perforatedtextured strips,marking:(TN),•cellularconfinementsystemfromperforatedtextured strips,marking:(TP).Geocellisalsoavailableforthefollowingcelldepths:50mm,75mm,100mm,150mm,200mm,300mm.Thewidthdimensionofthestripindicatesthecelldepth. Cellularconfinementsystemisalsoavailableindifferentvariantsregardingthecellsizethatisdeterminedbyfollowingweldspacing:•smallcells–330mm±2%–GWSmarking,•mediumcells–465mm±2%–GWMmarking,•largecells–660mm±2%–GWLmarking, Cellular confinement system brings about the following effects:•reductionofroad-structurethicknessasdifferentfrom theconventionalsolutions,duetoeliminationofdeep soilreplacement,•increasingshearresistanceofthegeocellinfillmaterials duetoitstheirconfinementandcompactionwithin thecells,•reductionofsoilsettlementastheeffectofnatural compactionandpreventionoflateralmovementsof aggregateinfillofgeocell,•reductionofhighstressestothesubbaseastheresultof theimprovedloaddistributionontheadjacentgeocells.•enablingstormwaterfiltrationthroughthebeddinglayers thankstotheapplicationofloosematerials,•stabilityanderosionresistanceofearthslopesurfaces,•soilreinforcingandstabilisationforexampleunderroad embankmentsandsportsfields.

Different type of infill materialWithreferencetothedesignrequirementsandgeotechni-calsiteconditions,theapplicationofdifferenttypesofinfillmaterialsispossible:•topsoilwithvariousselectedvegetation,•variousmineralmaterialsincludingsand,gravel, aggregateorstones•concreteofvariousstrengthsandsurfacefinishes,•on-sitefillmaterials,•withreferencetothedesignrequirements–combined optionsoftheonesabove.

Connected sections – abutted cells walls

Cell dimentions

51˚

wscwIc

I sc

I Ic

is manufactured

Perforation benefits•perforationsandatexturedsurfaceincreasethe frictionanglebetweenaggregateinfillandthecellwall, generatingbetteraggregatelockupandgreateroverall loaddistribution,•perforationsfacilitatelateralcell-to-celldrainage ofexcessivegroundandsurfacewater,reducingthe negativeeffectsoftraffickingoversaturatedsoils.

InstallationLightweightsectionsaredeliveredincollapsedformandareeasilyexpanded.Theycanbefastandeasilyexpand-edinanuncomplicatedmanner.Infillcanbeplacedman-ually,withsimpletoolsorconstructionequipment. Geocell is installed using rectangular stretcher frames–theiraimistoexpandthesuitablydimensionedsec-tions.Stretcher frames used in installation are neces-sary to obtain proper section geometry. They are used only during infilling and are designed for multiple use.Individual geocell sections canbeeasily connectedus-ing versatile clip arms, staples and anchors. For moredemanding constructions some other accessories arealsousedincludingtendons,anchoringsystems,etc.Suitablydimensionedgeocellsectionsareshippedtotheconstructionsiteintheircollapsedform,bandedandse-curedwithstretchfoilonpallets. Sectionsarefoldedinsuchamannerthatiseasytounfoldandexpandthematsite.

Flexible design solutionGeocell constructions can be easily adapted to awide range of design requirements and site con-ditions.Theversatilityof thesystemresults fromits inherent flexibility, unique load deformationbehavior and suitability for awide rangeof infillmaterialsandfoundationsoils.

Natural colored facingStandardwallsectionsareavailablewithgreen, tan, orblackfaciacolorstocreateablendingwithnaturalenvironments. Special facia colors can be manufac-turedtomeetuniqueaestheticrequirements. To meet up your individual expectations we have prepared polyethylene which is ultraviolet-light-stabilized to resist color fading and increasesystemdurability andquality performance to levelsmeetingtypicalengineeringrequirements.

Strengthsofcellularconfinement The confining cell structure imparts an effective co-hesion to the infill material, thereby increasing its shearstrength and stiffness. This improvement results from thehoopstrengthofthecellwalls,thepassiveresistanceoftheadjacentcellsandthehighfrictionalinteractionbetweentheinfillandthecellwalls. The cell wall structure shows improved lateral loadspreadingastheresultofincreasedwall-infillinterfacefric-tion;Theblockscreateaflexiblestructurebridgesystemofincreased stiffness. The structuralbridge results in signifi-cantimprovementsinthelong-termperformanceoftheloadsupportsystemandhelpstoreducethethicknessofstruc-turalsupportelements. The advantagesof using cellular confinement system(geocells)forsingle-layerroadbases,yardsorpavedsurfac-esisthereductionofcostsofgroundworksandinfillmate-rials.Thecellularconfinementsystemenablesalsotheap-plicationoflessexpensiveon-siteaggregateinfillinplaceofmorecostlyimportedmaterials. As loadsaredistributedthroughthestructuralbridgeoverthesoftsubgrade,thethicknessandweightofstruc-turalsupportelementscanbereducedby50%ormore incomparisontotheconventionalloadsupport.

Load distribution with the Geocells systemRutting without confinement

Load

1 Confinementstrengthscreatedby frictionstrengthsbetweentheinfill materialandthecellswalls.

2 Confinementstrengthscreatedby passiveresistanceofadheringcells.

3 Confinementstrengthscreatedby boudarydurabilityofthecellswalls.

1

2

3

2

3

Rutting without cellular confinement system – starts when the wedge 1 pushes and displaces zones 2 and 3

12

32

3

The system of geocells prevents ruttingof the ground confining zone 2 by stopping its displacement caused by the load.

Distribution of confinement strengths

About us 15 years of experience

Clear cut development strategyWe can say that it is the existence of our two strengths that makes us a strong and dynamically developing en-terprise. We are aiming to develop strategy based on solid information, to win advantage on the competitive market and to create efficient, customer-oriented and cost-effective enterprise. Our mission is a broader devel-opment on the European markets while keeping a strong position of a leader on our domestic market in Poland.

Everything tailor-madeOur aim is the delivery of tailor-made services. Fast and efficient sales require an individual approach to consumer preference!

Unique performanceWhat makes Geo Globe Polska different from its competi-tors is both quality and a comprehensive range of provided services. We take greatest care of every detail at each stage of work. Our production involves the highest technology. We hold electronic circulation of documentation and ERP man-agement system. Thanks to our professionally equipped laboratory our products undergo a thorough testing before they reach our Client.

Our team – professionals and enthusiastsThere is more than a hundred qualified specialists in Geo Globe Polska, among them a lot of employees with life expe-rience in plastic processing industry.

Certified qualityIn Geo Globe Polska we opt for quality. In 2005 we imple-mented and certified an integrated environment and qual-ity management system that conforms to ISO 9001 and ISO 14001 standards. Our products hold many approvals and certifications. We are also very proud of our cooperation with Barbara Experimental Mine in Mikołów, Central Mining Institute in Katowice, Building Technical Institute and Road and Bridge Research Institute.

Awards For the three consecutive years our company has been awarded Gazela Biznesu, a prestigious award for the most dynamically developing companies. In 2008 Kruk i Fischer was among the laureates of the 18th edition of Teraz Polska contest for the production of cellular confinement system, winning the highest assess-ment scores in analyses carried out by a panel of experts in the category of Best Products. Dun and Brand Street Poland together with its partner Getin Bank granted to Kruk i Fisch-er the Certificate of Transparent Enterprise. Being awarded is an expression of financial reliability and honesty; it also boosts our prestige and competitiveness on the market. We have also been exceptionally honoured during the 6th Gala Event of the Polish Nationwide Ranking Export Leaders. From the Award Committee we received rewards in the following categories: Sales Dynamics, Sales Dynamics – Regional Stage – Southern Poland, Innovativeness 2008.

Geo Globe Polska

Head Office:40-304 Katowice ul. Wiertnicza 36

Commercial Office:08008 Barcelona (Spain)

tel.: + 34 606 354 787acros@geoglobe.pl

Geo Globe Polskawww.geoglobe.plwww.geomaxx.es