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CLIENT: Hinze Dam Alliance
VALUE: $744,000
DURATION: August 2008 - July 2009
Shamrock Civil was contracted to construct a 5000m2 30 bay carpark and a 70m (L) x 4m (W) x 0.17m (D) continually reinforced concrete boat ramp.
Construction of the carpark required:
- 14,500m3 of bulk excavation;
- PMB Prime and 14/7mm Seal;
- Line marking and Installation of road furniture; and
- Subsoil and turfed table drains.
The table drains required a series of rock check dams and rock scour protection. A 50m turf lined catch bank drain was installed protecting the 3m high batter above the carpark.
The concrete boat ramp was constructed with 10m construction joints and required drainage grooves in the form of a repeating chevron pattern running the length of the boat ramp. As the concrete was 50MPa with a number of admixtures required as part of the concrete mix design, it was crucial to stage these works with one 10 meter slab poured each day.
To stamp the chevron pattern into the concrete, Shamrock designed and built 2 steel frames 5m (L) x 4m (W), which were lowered onto the concrete slab and vibrated into position. The steel frames were interlocking and had several spacers and registration points, which ensured that the pattern was consistently stamped at the correct depth and maintained the correct alignment over the full lengh of the boat ramp.
Mountable kerb and a rock revetment were then placed on either side of the boat ramp.
Due to the carpark and boat ramp being in close proximity to the water, Shamrock Civil ensured strict adherence to environmental controls detailed in our client approved JSEAs.
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