Water Journal : Water Journal April 2012
new products & services can be designed to act as a stand-alone or composite liner in accordance with relevant Australian Standards. Tunneline is a one-pass operation and requires little or no pre-works to stabilise the existing host condition. It is able to line all existing profiles and will also accommodate both vertical and horizontal bends, as well as size and shape transitions within the existing hosts. It can be used to line all known culvert material types. One of the specific benefits that Tunneline offers is the use of high- strength concrete and reinforcing steel to achieve a structure that meets Road and Rail design standards. In larger diameter applications, having the option to choose a fully structural, rigid solution is an attractive proposition. The VicRoads project involved the rehabilitation of an existing 2300mm id multi-plate corrugated steel culvert, 100m long, under the Hume Highway at Broadford in Victoria. The existing culvert had severe corrosion in the invert and its close proximity to an adjacent access culvert was giving rise for concern. Tunneline technical specialists, working with ITS Trenchless, developed a design that provided full structural support in a new 2.0m diameter culvert that was installed within the existing host culvert. ITS Trenchless installed the lining in 10 days. Using this technology is a first for ITS Trenchless, a first for VicRoads and the first successful installation of this technology in Australia. Project Profile: The project involved the rehabilitation of a 100m-long 2300mm id Corrugated Steel Plate culvert. ITS Trenchless deployed the unique Tunneline technology to install a fully structural in situ concrete lining inside the host pipe to deliver a final diameter of 2,000mm. The project scope included: • Full structural design to Australian Codes and Standards; • Formwork design and manufacture; • Concrete mix design and testing; • Reinforcement scope and design; • Installation of the concrete lining; • Formation of inlet and outlet structures; • Hand-over and commissioning. The site works commenced on February 13, 2012 and handover was achieved on February 28, 2012. Placing of the concrete took only 10 days, despite severe flood disruption. The use of the Tunneline system technology has resulted in substantial cost and time savings over conventional lining operations, with no impact to the operation of the highway. Other key advantages are: • No advance repairs required to the existing host structure; • The concrete is protected from flow, even if the sewer or culvert floods, and will not be affected during placement or during the set; • Excellent coefficient of friction, resulting in improved flow capability; • Reduced carbon footprint from less site traffic; • Significant time savings from one-pass operation. Project Highlights: • Utilisation of a new technology into the Australian market; • Designed to meet Australian Codes and Standards; • Self-supporting structure; • No LTIs or incidents; • No complaints; • 100-year design life guarantee. HOW TO STOP RUST AND CORROSION IN ITS TRACKS Corrosion is recognised as one of the most serious and costly problems to control and eliminate. Estimates on the cost of corrosion worldwide indicate a dollar figure in excess of AU$2.2 trillion, including AU$13 billion in Australia and AU$246 billion in the US. Wherever metal, concrete, timber or fibreglass come in contact with water, whether fresh or salty, deterioration and corrosion eventually becomes a troublesome issue. Once it gets hold it's hard to stop. What if there was a product that could change all that? Rust Bullet® can do just that: stop The completed lining. Think pipe couplings -- Think KCES Coupling YOU to SUCCESS PIPE JOINING SOLUTIONS Still using 19th Century technology? Bet you wish you were paying 19th century wages... NEW! STRAUB-PLAST-PRO NOW AVAILABLE FOR PE PIPES STRAUBTM PIPE COUPLINGS only have a maximum of three bolts, so installation is easy and quick. A couple of bolts and a bloke with a torque wrench, versus 16 bolts? YOU do the maths... STRAUBTM PIPE COUPLINGS are also the solution for angular de ection, axial misalignment, and gaps between pipe ends. They can also be used with differing pipe materials, require no pipe-end preparation, and are reusable. Think how easy that makes removal for inspection, maintenance or repairs. STRAUBTM PIPE COUPLINGS. Where space is con ned. And for where it isn't. For more info about StraubTM products and how they can help you save time, money and hassle, call (+61) 3 9728 3973 or visit www.kces.com.au for a video demo or a quote.
Water Journal May 2012
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