Engineers (DCE) was engaged by the Pakenham Racing Club as principal consultant
for the design and construction of a new state-of-the-art, fully sustainable
facility for thoroughbred racing, training and ancillary facilities including
the longest home straight of any current racecourse in Australia.
Pakenham Racing Club purchased the Greenfield site some 15km away from the
original site on which it is to develop the new Racing and Training Facility.
Upon completion, the activities currently undertaken at the Pakenham Racecourse
site will be relocated to the Tynong site, therefore enabling the sale of the
current Pakenham Racecourse.
• The site is
located 1km west of the Tynong Township
Site Area = 246ha (replacing Existing 24ha racecourse)
DCE used 12d Model to complete the civil
• Bulk Earthworks of site
(700,000 Cubic metres)
• 25m wide, 2,400m
in Length Wide Course Proper including 1,000m of chutes
• 4 Tunnels under racetracks
track for the whole circumference of the course Proper and 1200m chute.
• 10m & 6m wide Sand Tracks totalling 1,650m in length each
• Training Lights for the Sand Tracks
Wetlands and 30 megalitres storage dam
Growling Grass Frog Ponds.
• 6 megalitre
• Sewer and Water
• Main Entrance in accordance
with VicRoads standards
The problems DCE faced were:
• The new
racecourse required full civil design for roads, underground drainage, sewer,
water supply, tracks, flood ways, wetlands and frog ponds with sufficient
information to produce construction documentation.
• Due to time constraints, several people worked on this design simultaneously
to produce a fully integrated design of the entire site. In order to accurately
match neighbouring works to each other, they must also have ready access to each
other’s design information.
due to significant historical flooding at the site, detailed flood analysis of
the site was required showing areas and depths inundation over time.
• Data was required to be exported in several different formats to other
consultants, architects and contractors.
Due to the public nature of the project, aesthetic visuals were required for
advertisement and approval.
• The sheer
size and complexity of the drainage network required the use of a singular
network which could model hydraulic and hydrology data across the whole site.
Thirteen separate 12d Model projects were used to design the entire racecourse
and associated works, with as many as 5 designers working on it at any given
The ability to share and copy between project functions allowed DCE to
effectively interface their design with adjoining components and integrate them
all together to create a final overall design.
12d Model allowed DCE to share templates, MTFs, models and TINs with live
updating for when a designer was working in similar areas as another designer.
Using 12d’s drainage package, DCE was able to model the entirety of the
project’s underground drainage as a single network.
The network contained:
• Over 14km of
pipework, some as large as 1800mm diameter
• Over 20km of subsoil drainage
• Over 360
pits and endwalls
• Over 240ha internal
• Over 620ha external catchment
12d’s Network Editor interface allowed DCE to simply modify common properties
for catchment types, quickly make adjustments to cater for layout changes and
integrate the entire site into a fully functioning model of the network with
complete hydrology and hydraulic outputs.
For further analysis of the project they were required to export data into
external software packages. These included:
• Google Sketchup: 3D data was exported in order to be read into Google Sketchup
allowing accurate and realistic to scale visualisations of the project.
• HECRAS: 3d data was exported to HECRAS in order to analyse preliminary flood
depths along roadways and through floodways.
• TUFLOW/MAPINFO: 3d data and drainage strings were exported to MapInfo for the
development of a TUFLOW model. Results from the TUFLOW model were then imported
back to 12d to set flood levels
The remaining challenge was to provide
flood visualisation over the site that the racing club could understand and use
to show perspective purchasers of the trainer allotments.
• This challenge was overcome by using 12d
Model in conjunction with TUFLOW to produce flood animation over the site for
the various storm events. Melbourne Water would also use these results to
set minimum floor levels on each lot.
project included design in 12d of a 2km long swale to convey overland flows
around the racecourse development.
Outputs from 12d Model were exported to MapInfo for the development of a TUFLOW
flood model for the swale and wetlands.
The TUFLOW model’s base geometry was composed of TINs exported directly from
• Results from TUFLOW were imported to
12d as a tin to set 100 year ARI flood levels for the site.
• Piloting 12d Model, DCE used the TUFLOW and TUFLOW event visualisation options
to check that the flood simulation occurred as expected
Using 12d Model, DCE was able to perform a comprehensive 3D design of all civil
works efficiently with a high level of detail and accuracy, while presenting
deliverables with superior quality.
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