ICWES15- Kingsgrove to Revesby Rail Quadruplication - Innovations in Design and Construction of the Overbridges. Presented by Dr Gillian Sisk, Sinclair Knight Merz, Sydney AUST Ms

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KINGSGROVE TO REVESBY RAIL QUADRUPLICATION

INNOVATIONS IN DESIGN AND CONSTRUCTION OF THE OVERBRIDGES

Gillian Sisk BEng (Hons) PhD CEng MIEI

Sally Cox BEng (Hons) CEng FICE

Naomi Stone BEng (Hons) CEng MIET MIRSE

Wednesday 6 April 2011

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Project Team

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King Georges Road

Kingsgrove

Salt Pan Creek

RevesbyPadstow

Narwee

Riverwood

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Design – KGR Overbridge

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King Georges Road – Southbound Bridge

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King Georges Road – Northbound Bridge

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Key Construction Challenges

Rail corridor – limited available track possessions Key Arterial route – 5 lanes to remain open all time Pedestrian access on both sides of the bridge and access

to the station Ethane Gas Pipeline - EGP Limited workspace in a densely populated urban

environment Existing bridge structures – limited existing drawings Utilities – both at road level and at track level Tight construction program

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The challenge

Ethane Pipeline Constrained Site

Operational RailwayTraffic

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Five Lanes Open

1

Median

•Piling

•Cintec Anchors

•Headstock

•Surfacing

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Five Lanes Open

2

Northbound

•Piling

•Cintec Anchors

•Headstock

•Surfacing

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Five Lanes Open

3

Southbound

•Piling

•Cintec Anchors

•Headstock

•Pre-cast beams

•Surfacing

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Five Lanes Open

4

Reinstate Median

•Reinstate turning lanes

•Install signals

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Utilities

Ethane GP

Electrical

Water

Gas

Comms

Railway Power

Signalling

Comms

Services

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Tight Construction Programme

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Conclusion

Bridge was delivered on time No unplanned impact on rail and road operations High quality product