EARTH ANCHORING SYSTEMSFOR COMMUNICATION &

ELECTRICITY DISTRIBUTION

EARTH ANCHORING SYSTEMSFOR COMMUNICATION &

ELECTRICITY DISTRIBUTION

No excavation is necessary saving time, labour and money.

No danger of working in deep unshuttered holes or with expensive earthmoving equipment to establish an anchoring point.

The anchor drives into undisturbed earth and is ready for use in adirectlyfew minutes.

With the use of lightweight portable tools, multiple anchor installationscan be achieved by a crew of two over a very short period of time.

Every anchor can be proof tested to check the actual load.

A combination of cost effective anchor systems and compact installationequipment means that existing methods the system willcompared toprove to be extremely advantageous.

Platipus® have over 30 years of experience in the design, manufacture andsupply of Percussion Driven Earth Anchoring solutions (PDEA’s ) for a wide®

variety of market sectors. The proof of our work, engineering skills anddiligence speaks for itself in the comprehensive portfolio of projects andapplications shown on our website.

Key Benefits of the Platipus System

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INTRODUCTION

Our anchoring system out performs conventional methods of stay anchoringand utilizes low cost, lightweight, portable installation equipment, most ofwhich is readily available within the industry.

There are steps to the installation of an anchor system:three

Platipus anchors perform exceptionally well in a granular soil, displaying®

/ non-cohesiveshort loadlock and extension characteristics, a broad frustum of soil immediately in front ofthe anchor and extremely high loads.

The stress distribution in front of a loaded anchor can be modelled using foundation theory.The ultimate performance of an anchor within the soil is defined by the load at which thestress concentration immediately in front of the anchor exceeds the bearing capacity ofthe soil.

Factors that will affect the ultimate performance of the anchor include:-

Stiff cohesive soils, such as boulder clays, can also give outstanding results. However,weaker cohesive soils, like soft alluvial clays, can result in long loadlock and extensiondistances and a small frustum of soil in front of the anchor. Consequently these conditionsrequire a larger size of anchor and if possible a deeper driven depth to achieve design loads.

Granular Soil/ Non-Cohesive(Based on Terzaghi’s calculation)

Soft Cohesive Soil(Based on Skempton’s calculation)

lShear angle of the soiSize of the anchor

DRIVING THE ANCHOR REMOVING THE RODS LOADLOCKING / SETTING

The first stage is where a load isapplied to rotate the anchor intoits loadlocked position. Elementsof both load and extension arepresent.

The second stage is where theanchor system is generating afrustum of soil immediately infront of the anchor. At this pointload normally increases withminimum extension. The soiltype will affect the overallextension.

The third stage is where theanchor produces its ultimate load.As the anchor load approachesthe bearing capacity of the soil,the rate of increase in load willreduce until bearing capacityfailure of the soil takes place.

Caution: If the mechanical shearstrength of the soil is exceeded,the residual load will decreasewith continued extension as theanchor shears through theground.

LOADLOCK COMPACTION AND LOAD MAXIMUM LOAD RANGE

Depth of installationPore water pressure

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‘SIMPLY’ HOW A MECHANICAL ANCHOR WORKS

STRESS DISTRIBUTION & BEARING CAPACITY

TYPICAL ANCHOR BEHAVIOUR

BEARING CAPACITY FAILURE

The Stealth RangeThe ‘Stealth’ anchor covers a wide range oflightweight anchoring requirements. A number

systems available a wide range ofof anchor are forutility applications.

They are easy to install using simple hand or poweredtools and are available in either aluminium alloy orgalvanised castspheroidal graphite iron.

Plastic Impregnated Wire TendonA composite solid section of a “herringbone construction”, 7 x 7 galvanised steel wire tendon and black ultravioletinhibited polyethylene. The herringbone construction creates larger voids between the strands which enables deepimpregnation of plastic, locking the cover and preventing stripping. It also reduces capillary action of water entering thewire tendon if damage to the covering penetrates through to the steel wires.

The wire effectively withstands abrasion and abusive treatment. It is also highly resistant to extreme soil conditions anddoes not require external greasing or painting resulting in considerable savings on maintenance costs.

The Soil Air Interface is the area above and below the naturalground level where tendon corrosion is most likely to . Itwire occuris an area greatly affected by moisture levels, certain bacteria,temperatures, oxygen levels and H levels. An increase inPcorrosion can also occur if this area is exposed to agriculturalfertilizers, animal excrement and any chemicals with excessivePH levels.

Non aggressive soils with H levels between 6.5 and 7.5 havePlittle effect on the wire tendon. Further down in the ground the wiretendon is surrounded by compacted soil which reduces itsvulnerability to all of these elements and the chance of corrosion.

The Bat RangeThe ‘Bat’ anchor has been specifically designed to achieve higher loads andalso enhance anchoring in soft cohesive soils.

Designed to accept the T-Loc lower termination. The main advantage to thisdesign is the flexibility it gives to on-site anchor system assembly.

The range consists of sizes available in spheroidal graphitethree galvanisedcast iron and generally requires more powerful equipment for installation.

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THE ANCHOR SYSTEMS

WIRE TENDON

SOIL/AIR INTERFACE

336 x 206 x 91(13.22 x 8.11 x 3.58)

423 x 259 x 105(16.65 x 10.19 x 4.13)

30 10- 0+ kN( 00 - 000lbs)66 22

50 150- + kN( 00 - 00lbs)110 330

2 m-3(6'-10')SG Cast Iron

SG Cast Iron

45,500(70.52)

71,500(110.82)B8

B6

Stealth Range

TypicalLoad

RangeMaterials

MinimumDrivenDepth

AnchorType

310 10 3x 1 x 9(12.2 x 4.3 x 3.6)

2 60 - 0+ kN( 00 - 00lbs)44 132

1.5-2.5m(5'-8')

SG Cast Iron28,600

33(44. )

263 x 90 x 76(10.35 x 3.54 x 2.99)

10 4- 0 kN( 00 - 00lbs)22 88

Aluminium AlloySG Cast Iron

19,555(30.31)

1. m1-1.5(3.5'-5')

BAT Range

3 m-4(10'-13')

ProjectedSurface AreaSquare mmS( quare inch)

B4

S8

Dimensions

L x W x H (mm)

inchesL x W x H ( )

Antennas & Masts

The need to communicate 24/7 is now an essential part of everyday life.Whether it is by telephone, data or radio transmission we use all types ofequipment to stay in touch wherever we are in the world.

Platipus offers a range of standard anchor systems that can be used tosecure a variety of communication equipment including telecom poles,mobile satellites, antennas and masts. Their simplicity and speed ofinstallation make them ideal solution in a temporary or permanentcapacity.

Industrial growth, an ever increasing population and the need to utiliserenewable energy have put huge stresses on electricity distributionworldwide. As a result, distribution networks are in constant need ofupgrade or refurbishment to handle the demand.

Platipus have specifically engineered a range of anchor systemsfor distribution applications including electricity poles/stays,power l i ne c ross ings , towerrefurbishment / replacement andconductor restringing.

All anchor systems can be quicklydeployed and immediately prooftested to an exact holding capacityusing simple portable equipment.

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COMMUNICATIONS

ELECTRICITY DISTRIBUTION

Power Line Crossings

Telecom Poles / Stays

Refurbishment / Replacement of Towers Conductor Restringing

Mobile Satellites

Electricity Poles / Stays

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Using either manual or poweredequipment all systemsanchor can beloadlocked and proof tested in a fewminutes.

Due to the shape of the anchor and theoffset position of the wire tendon, whena load is applied, the anchor will rotatein the ground by up to 90° and loadlock.The distance an anchor travels throughthe ground will vary depending on soiltype and condition.

The system gives positive and accurate loadings, effectively the guessworkPlatipus removing normallyassociated with traditional methods.

We offer a full range of equipment to install and loadlock all anchor systems. We have an extensive range ofsets andone piece or multi-piece drive rod to suit all applications most breakers. All hand and powered

loadlocking equipment are of our own design and have been tried and tested in the industry formany years.

Most anchor systems can be installedusing simple hand or powered tools in amatter of minutes.

The systems are versat i le andextremely useful when anchoring insituations with difficult access (i.e.hedgerows, steep banks, alongsidewalls) with minimum disturbance to thesurroundings and no requirement forshuttering.

LOADLOCKING/PROOF TESTING

TOOLS

INSTALLATION EQUIPMENT

Cast iron Bat anchors with galvanized double leg wire ropes each terminated at the top with agalvanized hard eye. Double leg systems allow the wires to be removed once the pylon has beendismantled.

The installation of a sophisticated, mobile and fully prefabricated emergency restoration pylonsystem. The temporary pylons enabled a replacement tower to be constructed without interruptingelectrical supply along the 380kV 4-conductor line. An ultimate load of 40kN was required for eachanchor point. The total number of guys per tower ranged between 8 - 12 depending on the tower typeand height.

SOLUTION

PROJECT SPECIFICATION

EMERGENCY RESTORATION PYLON SYSTEM

Case Study

Galvanised Steel Wire Tendon

Anchor Components

INSTALL THE ANCHOR REMOVE THE RODS LOADLOCK THE ANCHOR

Galvanised ard yesSteel H ECast ron Bat nchorI A

Cost effective alternative to traditionalanchoring methods

Fast simple installation using lightweightportable equipment

Instant proof tested anchor points in amatter of minutes

Compact and easily transportable system

Main Advantages

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POWER LINE CROSSING, GLASGOW

The scaffolding towers were erected in the field area beyond the hard shoulder of both carriageways.andTo provide support prevent overturning anchors were installed and secured to the structures.

To protect the vehicles travelling along this section of the busy M73 motorway while essentialmaintenance and replacement works were carried out to the overhead power lines a scaffoldingstructure carrying a safety net was erected.

SOLUTION

PROJECT SPECIFICATION

Client: Scottish PowerMain Contractor: InterserveAnchor Installer: Complete Access Ltd

Anchor System: S85 aluminium alloy anchor c/w 1.5m of 8mm Ø galvanised steelwire tendon, large soft eye, single leg system.

Quantity: Anchor Design Life: Soil Type:32 5yrs Greenfield

Case Study

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ALL SAFE DIGGING PRACTICES MUST BE FOLLOWED PRIOR TO INSTALLATION OF AN ANCHOR. ALL UNDERGROUND SERVICESMUST BE LOCATED PRIOR TO INSTALLING AN ANCHOR. ALWAYS USE TWO PEOPLE TO LIFT THE BREAKER. ALWAYS WEAR SAFETYEQUIPMENT, ESPECIALLY GLOVES AND EAR DEFENDERS WHEN USING THE BREAKER.

1. Connect the shank and drive end using thecoupler. Drive rods, couplers and shankare left hand thread.

2. Insert the tip of the drive end into theanchor and position the anchor at the point ofentry into the ground.

3. Insert the shank into the breaker and lockin place.

9. Ensure the loadlock jack is set to the sameangle as the stay (Usually 60°).

The anchor must now be ‘loadlocked’into its working position.

8. Remove the breakerCaution! Two man lift.from the shank and using the rod removers,withdraw the drive rods from the ground.Caution! Rods and couplers may be very hot.Wear gloves. In reasonable ground theinstallation process should not take more than3-4 minutes. In very hard ground up to 10minutes may be needed.

7. Lift the breaker ontoCaution! Two man lift.the shank and continue driving the anchoruntil the protective sleeving just reachesground level. This will leave the top eyeapproximately 150mm above ground level.Driving the anchor past this point canmake loadlocking difficult.

11. The anchor will rotate through the groundinto its loadlocked or working position. Thiswill normally take an anchor bodies length(approximately 250mm). Once the anchorhas reached its working position the load willbe felt on the jack.

12. Move the jack's direction lever to the'down' position and operate the jack to lowerit. Caution! Once the load has been released,the jack will drop to its lowest position.Disconnect the jack from the anchor. Theanchor can now be put into service.

10. Connect the jack to the top eye of theanchor using the shackle and with the jack'sdirection lever in the 'up' position, operate thejack to apply a load to the anchor.

5. Lift the breaker fromCaution! Two man lift.the shank. Do not pull the drive rod up outof the anchor as relocation may beimpossible.

4. Raise the breaker toCaution! Two man lift.the intended angle of the stay and begindriving the anchor into the ground until thetop of the coupler just reaches ground level..

6. Attach a second drive rod and couplerbetween the original drive end and shank.Caution! Rods and couplers may be very hot.Wear gloves.

260413

TELECOM POLE ANCHOR STALLATIONIN

Connect the shank and drive endusing the coupler. NOTE: Drive rods,couplers and shank are left handthread.

Insert the shank intothe hammer chuck andlock in place.

Chuck

Shank HydraulicHammer

Raise the hammer to theintended angle of thestay and begin driving

the anchor into the ground at thisangle until the top of the couplerjust reaches ground level.

Lift the hammer from the shank. DO NOT PULLTHE DRIVE ROD UP OUT OF THE ANCHOR.RELOCATION MAY BE IMPOSSIBLE. Attach anotherdrive rod and coupler between the original driveend and shank.

DO NOT PULLTHE DRIVE ROD UP OUT OF THE ANCHOR.RELOCATION MAY BE IMPOSSIBLE.

Remove the hammerfrom the shank.

The PLATIPUS ground anchormust be andLOADLOCKEDproof loaded beforeattaching the backstay.

LOADLOCKINGINSTRUCTIONS AREOVERLEAF.

Pull the drive rods out ofthe ground.

CAUTION! RODS ANDCOUPLERS MAY BE VERYHOT.

When the rods haveb e e n r e m o v e d t h eground anchor must be‘ loadlocked’ into itsworking position.

Shank

DriveEnd

Coupler

Insert the round tip of the drive end into theground anchor and position the anchor at thepoint of entry into the ground facing away fromthe pole.

Pole

Anchor

Once driving has been completed the drive rodsare removed by an upward pull of the hammer. Ifthe rods do not break free immediately then pullingup on the hammer while pressing the trigger willcreep the rods up and out of the ground anchor.

Replace the hammer on the shankand continue driving the groundanchor until the protective sleevingjust reaches ground level.

CAUTION! DRIVING THE GROUNDANCHOR PAST THIS POINT CANMAKE LOADLOCKING DIFFICULT.

CAUTION! DRIVING THE GROUNDANCHOR PAST THIS POINT CANMAKE LOADLOCKING DIFFICULT.

NOTE: In reasonable ground the above processshould not take more than 6-8 minutes. In very hardground up to 20 minutes may be needed. In hardsoil conditions a MINIMUM depth of 1.5 drive rodlengths must be reached.

STOP

CAUTION!All undergroundservices must belocated prior toinstallation of ananchor. Use twopeople to lift thehydraulic hammer.

SAFETY!W e a r s a f e t yclothing, especiallyear defenders whenusing the hydraulichammer.

ELECTRICITY DISTRIBUTION STALLATION INSTRUCTIONSIN

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STOP

DO NOT PULLTHE DRIVE ROD UP OUT OF THE ANCHOR.RELOCATION MAY BE IMPOSSIBLE.

CAUTION! DRIVING THE GROUNDANCHOR PAST THIS POINT CANMAKE LOADLOCKING DIFFICULT.

STOP

Safety Pin

Remove the basepin from the loadlocking unit base and liftthe turret to the intended angle of the backstay. Replacethe basepin through the base and the wheel to lock theturret in position. ENSURE THAT THE SAFETY PIN ISSECURELY ON THE BASEPIN.

THE LOADLOCKING PROCEDURE IS TO BE PERFORMEDBY ONE OPERATOR ONLY.

The SJ2 hydraulic powered loadlocking unit in the ‘stowed’ position.CAUTION!! LOADING THE UNIT IN THIS POSITION WILL SEVERELYDAMAGE IT.

Joystick

HydraulicPowerConnectors

Base Basepin &Safety pin

Loadpin &Safety pin

Turret

Load gauge

Push the turret pin through the lowest available hole and engage theanchor eye. Fit the safety pin. Ensure that the anchor tendon sits in the ‘V’ ofthe guide wheel.

Turnbuckle

CAUTION! Where a turnbuckle isfitted it must hang below the turretpin otherwise damage may result.

With the flow from the power pack ONgently push the joystick to the right andthen forward to extend the turret.Ensure that the tendon remains withinthe ‘V’ of the guide wheel. The grounda n c h o r w i l l p u l l u p i n t o i t sLOADLOCKED position. Extend theturret until the required proof load isshown on the gauge.

Place the loadlocking unit over the anchor eye with the turret pointing tothe pole and the tendon in front of the guide wheel.

Guidewheel

Ensure that flow from the power pack isOFF before connecting the hydraulichoses to the loadlocking unit. With the

flow the turret can be inched up to align the lowestONavailable hole with the anchor eye by pushing the joystick to theright and then forward a small amount.

260413 CRF281

ELECTRICITY DISTRIBUTION LOADLOCKING INSTRUCTIONS

Do not pull the anchor eyemore than two full extensionsof the loadlocking unit (i.e.600mm max.) The unit will notexceed 35kN. This is them a x i m u m p r o o f l o a dpermitted.

STOP

On completion of loadlocking,release the pressure, remove theturret pin and return the turret toits starting position. Switch off theflow from the power pack anduncouple the hoses. Lift theloadlocking unit over the tendonand return the unit to its stowedposition. Secure both pins.

pull the joystick back to release the pressure. Remove the turret pin.Pull joystick back again and return the turret to its start position. Pinthe anchor eye through a higher hole, replace the safety pin andpush the joystick forward to continue loadlocking the groundanchor.

If the proof load is not reached inone full travel of the turret

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We are pleased to operate the necessary standardsto maintain ISO 9001 for both our

QUALITY MANAGEMENT AND DESIGN SYSTEMS

PDEA , and are Registered Trademarks of Platipus Anchors.® ® ®

ARGS ARVS

210716

T: Toll Free (USA): (866) 752-8478 T: (919) 662-0991E: civils@platipus.us