Inspire : Public Works Professional Sept - Oct 2013
36 Public Works Professional September-October 2013 GREEN HOSPITAL When the $2 billion Fiona Stanley Hospital opens in Perth next year, not only will it be WA's biggest-ever building, but also a testament to sustainability. Already the winner of a United Nations environmental award, the hospital will showcase numerous water-sensitive urban design measures, implemented to improve the effciency of water use within the hospital, as well as the management of stormwater quality and quantity. The hospital occupies a 32-hectare site with more than fve hectares of bushland, landscaped parks, internal gardens, courtyards and plazas. All stormwater will be retained on-site to sustain these green areas, along with off-site programs, including investment in community-based conser vation efforts. To meet the stormwater management objectives, main contractors Brookfeld Multiplex specifed fve underground stormwater detention and infltration systems, and a stormwater har vesting system. Humes won the contract to supply the detention basins on the grounds of their pre-cast StormTrap modules. The project engineers then identifed an opportunity to replace a large retaining wall and detention basin with a sixth Stor mTrap system. The StormTrap system was as cost effective as building the retaining wall, while also providing the additional advantage of moving the detention basin below ground and freeing up land for other purposes. This was the largest detention system supplied for the project, with a storage capacity of 3708m3. Its design included a grated side opening to allow extension and interaction of the basin with nearby vegetated bushland during a high-fow event. With a tight building schedule, the StormTrap system was an ideal ft for the project. Humes delivered approximately 30 units of the stormwater system to site each day. Each piece took approximately 10 minutes to install, with the systems completed and ready to be backflled in less than 10 days. This quick installation allowed the civil and structural works on buildings, roads and car parks to progress without delay. Designed in accordance with AS 5100.2-2004 -- Bridge Design Code, the Stor mTrap system enabled the managing contractor to maximise the site for traffc and storage during construction, even before the surface was completed. ••• CONTINUE THE CONVERSATION Have your say on this story. Visit http://goo. gl/ICrFSR to comment on this article. DETENTION BASINS MAINTAIN HEALTHY HOSPITAL GROUNDS Pre-cast concrete modules were the answer when WA's biggest building infrastructure project needed a series of huge stormwater detention basins to keep its surrounding areas lush and green. Thirty StormTrap modules were delivered each day to site -- each taking 10 minutes to place.
Public Works July Aug 2013
Public Works Nov Dec 2013