Sunset Studios
Starting in August 2022, our scope of works consisted of the site preparation, inclusive of vegetation clearance and removal of 100,000m3 of topsoil, which has been retained on-site for final landscaping.
Our main activity was the bulk excavation of circa 136,000m3 of Enfield Silt material as an engineered fill, which was stabilised with a lime and cement binder to facilitate future works.
228,000
litres of water tankered
45,000
m3 of type 1 imported
8,217
man hours worked
One of the main challenges was undertaking a major earthworks project outside of the traditional earthworks season which was added to by heavier than normal rainfalls. To manage the control of standing water on site, a surface water strategy was designed and installed allowing water to flow from the working platforms to a central carrier drain that runs across site discharging into a newly excavated attenuation pond. A mitigation strategy was also developed using additional haul roads and working in an out of sequence manner, however because the site is not naturally permeable and free-draining the use of heavy plant was minimised until the ground had sufficiently dried with additional resource being employed as areas became available. 228,000 litres of water was tankered from site to allow us to enter these areas, continue stabilisation, and bolster up the localised drainage.
In-house Capability
To facilitate the works of the follow-on main contractor, our enabling works package was extended through the introduction of the working platform and piling mat installation, designed by Swanton, which consisted of import and placement of 45,000m3 of Type 1 and 50,000m3 of 6F5 across a 220,000m2 area. This introduced its own challenge in the logistics of delivering this large quantity of materials in a just-in-time manner, due to restrictive areas for stockpiling on site, and the risk of double handling materials, preferring to deliver directly to the work face, where it could be placed.
The success of this difficult operation was as result of close communication between our supply chain, our internal haulage business and our project management team.
