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Infrastructure

Caulfield to Dandenong Level Crossing Removal Project, Victoria

Caulfield to Dandenong Level Crossing Removal Project, Victoria

  • Foundation Piling
  • Infrastructure

This high profile set of crossing removals featured the elevation of the Cranbourne/ Pakenham train lines over some of SE Melbourne’s most congested roads. From the Caulfield end grade separations were created at Grange Rd, Koornang Rd, Murrumbeena Rd, Poath Rd, Clayton Rd, Centre Rd, Corrigan Rd, Heatherton Rd and Chandler Rd. The project also included the construction of six new elevated stations along the alignment.

Due to a combination of factors including complex geology with high groundwater table, and a very narrow rail corridor, the most viable solution was the elevated structure rather than the previously predominantly rail in excavated slot beneath road model (eg Greater North crossing removals at Ormond and Bentleigh).

Our Role

The single biggest challenge on the project was the incredibly tight access for piling plant along the rail corridor. Through some sections the piling bench was less than six metres wide squeezed between the rail infrastructure/overheads and the rear fences of residential properties.

Across a period spanning nearly 10 months, Geotech constructed over 1,000 continuous flight auger (CFA) piles of diameters ranging from 900mm, 1,050mm and 1,200mm to maximum depths of 28m for the permanent structures. An additional 200 temporary 450mm dia piles were installed, typically to depths of six metres. In one location a single large diameter bored pile constructed under polymer fluid was adopted, as the access precluded the mobilisation of a deep CFA piling rig.

Disciplines covered

  • CFA Foundation Piles
  • Bored Piles under Polymer Fluid
  • PDA Testing

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