Australian-made technology renews Sydney’s oldest sewers

摘要

Like all large cities around the world, Sydney’s major underground sewers are deteriorating through age andrnreaching the end of their service life. To succeed in its vision to be the lifestream of Sydney for generations torncome, Sydney Water’s active sewer renewals program needs to renew underground sewers beneath heavilyrnpopulated and environmentally sensitive areas. One of Sydney Water’s pipeline rehabilitation contractors, Interflow,rnrecently applied world class spiral wound lining technology to renew two of these sewers withoutrnexcavation or interrupting services. This Australian made technology is pushing the boundaries in non-disruptivernunderground sewer renewal previously considered too difficult or impossible. The projects carried out for SydneyrnWater and discussed in this paper have twice received the International Society for Trenchless Technology’srnaward for international project of the year.