Project Name: Castlerock Container Yard
Project Location: Castlerock, Tasmania
Container Yard Project Requirements
A new industrial subdivision was being developed in Cambridge, Tasmania, a suburb of Hobart. The client, Castlerock Property, identified a need for a heavy-duty pavement that could accommodate its container handling and storage facility. The current area was a predominantly flat, vegetated surface with poor drainage that could not support frequent heavy loads.
A durable, permeable pavement solution was required due to the frequent operation of container lift trucks with heavy axle loads up to 63,000 pounds (280kN).
A Robust Geosynthetic Container Yard Pavement
After evaluating different pavement solutions, it was determined that the GEOWEB® Geocell System was the best option because it would significantly reduce the pavement depth that was initially proposed in the project plan.
Presto Geosystems and Geofabrics’ (material supplier) engineering teams provided technical assistance to Castlerock Property’s geotechnical engineer, helping to certify the design incorporating the GEOWEB System and Solmax Mirafi RSi multifunctional woven geotextile. The main goal was to develop a solution aimed at optimizing and stabilizing the pavement.
Installing the GEOWEB Geocells With a Woven Geotextile
The subgrade preparation involved the installation of Mirafi RS380i with a 4-inch (100mm) base layer made from crushed rock. This base layer integrated the placement of the GEOWEB mid-sized cell, 6-inch depth system (GW30V6), which was infilled with additional crushed rock. Following this, the leveling layer and wearing course were built with the pavement having a granular wearing course for most of the site. Throughout the pavement construction process, Geofabrics provided on-site support for the installation of both the GEOWEB System and Mirafi RS380i, which was carried out by the contractor, Batchelor Construction Group.
By installing the GEOWEB System and Mirafi RSi, the client was able to adopt a pavement that was around 14 inches (350mm) thick and 50% thinner than the initially proposed pavement design. This resulted in significant cost savings across the 21.5 square feet (2,000m2) project area.
Project Results One Year Later
A site visit was conducted nearly a year after construction, with observations showing that the GEOWEB geocells and RS380i system are continuing to perform exceptionally well.
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