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GEWI®Plus Geotechnical Systems
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steel grade yield tensile nominal cross sectional weight load ultimate strength strength diameter area per metre at yield load
[N/mm2] [N/mm2] [mm] [mm2] [kg/m] [kN] [kN]
GEWI®Plus 670 800 30 707 5.55 475 565
GEWI®Plus 670 800 35 962 7.55 640 770
GEWI®Plus 670 800 43 1,466 11.51 980 1,170
GEWI®Plus 670 800 57.5 2,597 20.38 1,740 2,080
GEWI®Plus 670 800 63.5 3,167 24.86 2,120 2,540
GEWI®Plus 670 800 75 4,418 34.68 2,960 3,535
GEWI®Plus – Ground Anchors 30-75 mm
Advantages and Characteristics■ Easy system handling
■ Simple restressing and destressingthrough anchorage with nut
■ Permanent corrosion protectionpossible
■ Easy removal of temporary anchorsthrough threaded sleeves
■ Flexibility in transport lengths byusing couplers
■ High bond strength between GEWI®Plus threadbar and cement grout
■ High stiffness during installation
■ Angle compensation using wedgewashers
■ Quality assurance through internaland external supervision ofproduction
corrosion protection
steel cap
anchor platewith steel tube
injection adapter
GEWI®Plus bar
cement grout
smooth sheathing
corrugated sheathing
spacer
grout cap
domed nut
Temporary GEWI®Plus Ground Anchor
Permanent GEWI®Plus Ground Anchor
domed nut
anchor platewith steel tube
smooth sheathing
cement grout
GEWI®Plus bar
spacer
profile ring
corrugated sheathing
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GEWI®Plus – Soil Nails 18-75 mm
Advantages and CharacteristicsThe essential advantages of the GEWI®Plus soil nails are:
■ High durability through doublecorrosion protection possible
■ Low susceptibility to corrosion
■ Angle compensation up to 20° through formed plate
■ Flexibility in length by using couplers
■ Extension bars may be attached by using couplers
■ Spacers ensure proper grout cover
■ High standard of quality control from production stage to installationof the soil nails ensures consistentquality
formed plate
domed nut
GEWI®Plus bar
cement grout
domed nut
formed plate
GEWI®Plus bar
cement grout
corrugated sheathing
spacer
steel grade yield tensile nominal cross sectional weight load ultimate strength strength diameter area per metre at yield load
[N/mm2] [N/mm2] [mm] [mm2] [kg/m] [kN] [kN]
GEWI®Plus 670 800 18 250 1.96 170 200
GEWI®Plus 670 800 22 375 2.94 250 300
GEWI®Plus 670 800 25 491 3.85 330 390
GEWI®Plus 670 800 28 616 4.83 410 490
GEWI®Plus 670 800 30 707 5.55 475 565
GEWI®Plus 670 800 35 962 7.55 640 770
GEWI®Plus 670 800 43 1,466 11.51 980 1,170
GEWI®Plus 670 800 57.5 2,597 20.38 1,740 2,080
GEWI®Plus 670 800 63.5 3,167 24.86 2,120 2,540
GEWI®Plus 670 800 75 4,418 34.68 2,960 3,535
GEWI®Plus Soil Nail
GEWI®Plus Soil Naildouble corrosion protection
spacer
structural concreteor shotcrete
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Advantages and CharacteristicsThe DYWIDAG GEWI®Plus pile is adrilled micropile with a central steelelement based on the GEWI®Plusthreadbar with hot-rolled, continuousthread deformations on both sides. TheGEWI®Plus threadbar is encapsulatedin cement grout which acts both ascorrosion protection and as loadtransfer into the soil or rock.
■ Excellent load transfer into concretestructures by means of anchoringelements
■ Tensile, compressive and alternatingloads can be efficiently transferred tothe structure
■ The coarse GEWI®Plus threadguarantees maximum bond betweensteel and cement grout
■ The stress-strain curve of the GEWI®Plus bar shows high ductility
■ Settlement can be prevented byusing preloaded GEWI®Plus piles
■ Load transfer into soil optimized bypost-grouting
■ Double corrosion protected piles can be used for high corrosionimpact like in aggressive media such as seawater or contaminatedground
■ Can be cut off or coupled at any given point
■ A small drill hole diameter permitseconomic drilling equipment
■ robust coarse thread remainsthreadable even when dirty ordamaged
GEWI®Plus – Piles 28-75 mm
additional reinforcement forcompression pile
end-anchorage with lock nut
pile neck protection
spacer
coupler
GEWI®Plus bar
GEWI®Plus bar
GEWI®Plus Pile GEWI®Plus Pile double corrosion protection
anchor nut withplate and lock nut
additional reinforcement for tension pile
corrugated sheathing
spacer
cement grout
GEWI®Plus bar
steel grade yield tensile nominal cross sectional weight load ultimate strength strength diameter area per metre at yield load
[N/mm2] [N/mm2] [mm] [mm2] [kg/m] [kN] [kN]
GEWI®Plus 670 800 28 616 4.83 410 490
GEWI®Plus 670 800 30 707 5.55 475 565
GEWI®Plus 670 800 35 962 7.55 640 770
GEWI®Plus 670 800 43 1,466 11.51 980 1,170
GEWI®Plus 670 800 57.5 2,597 20.38 1,740 2,080
GEWI®Plus 670 800 63.5 3,167 24.86 2,120 2,540
GEWI®Plus 670 800 75 4,418 34.68 2,960 3,535
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GEWI®Plus – the ultimate in threadbar technology
The booming market of geotechnicalsystems needs higher performance!
DYWIDAG-SYSTEMS INTERNATIONALfaces this challenge. With the newGEWI®Plus systems we present thelatest stage of threadbar technology forground works:
■ complete systems for piles, anchors,rock bolts and soil nails
■ bar diameters from 18 to 75 mm
■ yield loads from 160 to 2,960 kN
■ ultimate loads from 200 to 3,535 kN
■ all systems in accordance with thelatest European standards andprovisional European standards
■ corrosion protection systemscomplying with the latestdevelopments and European stan-dards
■ yield strength: 670 N/mm2 – an increase of 34% compared tostandard GEWI® rebars (500 N/mm2)
■ ultimate strength: 800N/mm2 – an increase of 45% compared tostandard GEWI® rebars (550 N/mm2)
■ for the same design load you will save about 25% of steel quantity compared to standard GEWI® rebars
These factors bring big advantages during transportand in handling.
■ the robust GEWI®Plus thread is specially designedfor rough site conditions
■ the right-hand thread over the full length offers thepossibility to fix and couple the bars at any point.Adaptions to varying conditions are very easy andcan be done quickly on site
■ in spite of the high strengths, GEWI®Plus is notsensitive to stress crack corrosion and hydrogeninduced embrittlement
■ GEWI®Plus is fully integrated in the qualityassurance system of DYWIDAG-SYSTEMSINTERNATIONAL – all our workshops arecertificated to DIN EN ISO 9001
■ DYWIDAG-SYSTEMS INTERNATIONAL is theinventor of the GEWI® thread, we have all theknow-how in this business. As the producer of thesystems for more than 30 years we can help youwith our experience and show you a solution foralmost every problem that you will face on site
GEWI®Plus – a system for the future
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www.dywidag-systems.com
Please note: This brochure serves basic information purposes only. Technical data and information provided herein shall be considered non-binding and may be subject to change without notice. We do not assume any liabilityfor losses or damages attributed to the use of this technical data and any improper use of our products. Should you require further information on particular products, please do not hesitate to contact us.
AustriadywidAg-systemsinternAtionAl gmbhwagram 494061 pasching/linz, Austriaphone +43-7229-61 04 90Fax +43-7229-61 04 980 e-mail: [email protected]
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SpaindywidAg sistemAs ConstruCtivos, s.A.Avenida de la industria, 4pol. ind. la Cantuena28947 Fuenlabrada (mAdrid), spainphone +34-91-642 20 72Fax +34-91-642 27 10e-mail: dywidag @dywidag-sistemas.comwww.dywidag-sistemas.com
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