7/29/2019 ERKE Group, Vibratory hammer 52HV driving casings near a railway Canada

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The project on the West Toronto Diamond consists o a rail-to-rail and rail-to-road grade separation, in the

Georgetown South Corridor. When completed the GO commuter line will run underneath the Canadian

Pacic reight line and provide saer, more efcient trafc. The project also contains a new Air Rail Link

rom Union Station to Pearson International Airport and uture expanded service to Milton, Barrie, and

Georgetown.

A division of Metrolinx, GO Transit is the regional public transit service for the Greater

Toronto and Hamilton Area. With the objective of increasing and improveing the

network of rail lines, the government decided to build a grade separation on the

West Toronto Diamond (WTD), the busiest railway intersection in Canada.

The 52HV buildinga grade separation onthe West Toronto Diamond,Canada.

The ollowing work was accomplished while

maintaining rail operations or CN, CP, VIA and GO

Transit service :

Aloweredcorridorfor4setsofGOTransittracks.

A bridge to carry CP tracks, and vehicles/

pedestrians on Old Weston and junction roads,

crossing over the lowered GO tracks .

AsecondbridgethatwillcarrytheCPtracksover

the lowered GO tracks.

ThegroundconditionsaresiltyclaywithSPTvalues

upto65.Thistypeofhardsoilisnormallytreated

with hydraulichammers,butin thisprojecttheir

useislimitedtoavoidvibratorydisturbancetothe

housesandnoisedisturbancetotheinhabitants.

To overcome the work under these strict demands

and difcult soil conditions, the contractor Geo

Foundations, chose to do the oundation work with

aPTC52HVVibrodriver.

ThisVibratoroersaperfectmixbetweendriving

powerand vibrationcontrol, becauseits variable

moment technology (PTC patent) allows the

adjustment of the vibration amplitude at any

moment during the driving.

Furthermore, the Vibmaster monitoring system,

permitsastrictcontrolofthesoilparticlevelocity

emitted in the soil, guaranteeing that oundation

worksrespectthelimitxedbythelocalauthorities.

Project phases

Phase 1

Utilityrelocationandretainingwallconstruction.

Phase 2

Installation o interlocking pipe piles to orm the

walls o the lowered rail corridor.

The 52HV was mounted free hanging on a 150 t

Manitowaccranetodrivethetubesthatwillsupport

thenewraillines.Thetubesdrivenbythe52HV

had36 diameter(915 mm),0.5 wallthickness

(12.7mm),and40long(12.2m).

Phase 3

Pipe pile wall validation: removing soil rom within

piles and lling them with concrete and other

sealing compounds to ensure water- tight walls.

The 52HV was used to drive the piles and to remove

them once the concrete was poured.

Phase 4

Excavationoftheloweredrailcorridorandbridgeinstallation.

Thisprojectstartedin2010,andiscurrentlyunder

phasenumber3.Itisexpectedtobecompletedin

2014.

Crdit images:

www.gotransit.com/gts.

Project presentation:

Georgetown South.

PTC - Job report - Free hanging piling

KEY FACTS

Go transit carries more than

62 million passengers a year.

The 52HV Vibrodriver isequipped with Patented

Variable Moment Technology.

Vibmaster monitoring system

controlled the soil particle

velocity during the Vibrodrivers

work.

Tubes: 915mm diameter

and 12 m long.

Duplex clamp 120 t.

View of the works required for the grade separation project on the West Toronto Diamond.

View of the West Toronto Diamond before works started.

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