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DTSTART;TZID=Australia/Sydney:20211014T170000
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UID:16235-1634230800-1634230800@australiantunnellingsociety.com.au
SUMMARY:Crushed waste glass re-use in tunnel shotcrete production
DESCRIPTION:To attend in-person register via the Engineers Australia registration link\, or join the webinar here.\nJoin the Queensland Branch of the Australian Tunnelling Society for a presentation by Dr Mehdi Serati. He will provide an update on the latest results from his industry-sponsored project using crushed waste glass (CWG) to replace sand in shotcrete used to support tunnels and underground spaces. \nAbstract: According to the International Tunnelling Society\, the global demand for underground constructions will boom in the coming years\, with around $42 billion of investment in the tunnelling sector in Australia alone. This trend can be seen already by nine out of 12 current state and federal government infrastructures related to underground road and rail tunnelling projects in Australia. With such an increased demand for tunnelling\, shotcrete has also received increased attention for ground support in tunnels and mines. For example\, in 2018 800\,000 m3 of shotcrete was used in Australia with 500\,000 m3 used in underground constructions\, and 300\,000 m3 in civil basements\, swimming pools and embankments. \nShotcrete (or sprayed concrete) is concrete in nature that needs to be pneumatically projected onto the target surface from a nozzle at a high (typically 20-30 m/s of impact) velocity to generate a dense homogeneous mass. But\, unlike conventional concrete\, shotcrete mixes are rich in sand and require an increased binder content to coat the surface. Shotcrete industries have therefore suffered from a significant rise in the overall cost in recent years\, mainly due to steep hikes in the price of sand. This can be attributed to the widespread use of sand in today’s industries that has made it the second-most consumed resource on earth after fresh water. Recycling local wastes to replace the rapidly reducing natural and quarried sand is therefore becoming of urgent interest in Australia and worldwide in the construction and tunnelling sectors. \nThis presentation will summarise the results of a recent trial project at UQ Civil\, supported by GCP Applied Technologies and Aurecon\, on the applicability assessment of crushed waste glass re-use in shotcrete production. \nGuest speaker\nDr Mehdi SeratiBSc MSc PhD (Geotechnical Engineering) MAusIMM\nAssistant Professor (Lecturer)\nDeputy Manager\, Large Open Pit Project   \nDr Mehdi Serati completed his PhD at The Commonwealth Scientific and Industrial Research Organisation (CSIRO) through The University of Queensland (UQ) in Brisbane\, Australia in Rock Mechanics and Rock Fracture Mechanics. His main research interests include the design and setup of advanced experiments with diverse engineering materials including pavements\, brittle composites\, ceramics\, hard rocks\, and superbly hard diamond composites. Dr Mehdi is a Lecturer at UQ Civil and Deputy Manage of the Large Open Pit Project (LOP). His areas of work are analytical methods and computational modelling of geotechnical problems\, materials testing\, rock mechanics and rock fracture mechanics.
URL:https://australiantunnellingsociety.com.au/ats-event/crushed-waste-glass-re-use-in-tunnel-shotcrete-production/
CATEGORIES:Queensland
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DTSTART;TZID=Australia/Sydney:20211021T173000
DTEND;TZID=Australia/Sydney:20211021T173000
DTSTAMP:20211018T043245Z
CREATED:20211018T043245Z
LAST-MODIFIED:20211018T043245Z
UID:16500-1634837400-1634837400@australiantunnellingsociety.com.au
SUMMARY:BHP South Flank project presentation
DESCRIPTION:The Institution of Civil Engineers has invited ATS members to an evening of knowledge sharing\, Q&A and networking. \nOverview\nJoin Project Engineering Lead Andrew McMillan for a presentation on the recently completed South Flank Project. \nIn May 2021\, BHP achieved first ore targets on the US$3.6 billion South Flank project in the central Pilbara region of Western Australia. \nSouth Flank is an 80 Mtpa sustaining mine and will be the most technically advanced high-quality iron ore mine in Western Australia. Together with the existing Mining Area C\, it will form the largest operating iron ore hub in the world\, producing 145 million tonnes of iron ore each year. \nThe South Flank project expands the existing infrastructure at Mining Area C\, and involved construction of an 80 Mtpa crushing and screening plant\, an overland conveyor system\, stockyard and train loading facilities\, procurement of a new mining fleet\, substantial mine development and pre-strip work. \nEvent Timeline \n5.30pm – 6.00pm: networking and refreshments \n6.00pm – 7.00pm: presentation \n7.00pm – 8.00pm: networking and refreshments \nSpeaker\nAndrew McMillan BEng Sc (Civil)\, BSc (Hon) \n Project Engineering Lead\, Western Australia Major Projects\, BHP. \nAndrew has 13 years’ experience in the execution of major mining resource projects in the Pilbara Region of Western Australia\, including BHP’s Rapid Growth Project 5 (RGP5 – Port and Rail)\, BHP Tug Harbour Expansion and more recently the BHP South Flank Project. \nHe was engaged as a lead project engineer\, during the early design phase study of the South Flank Project\, to positively influence the infrastructure design to facilitate optimised construction outcomes. \nDuring the execution phase of the South Flank Project\, he was engaged as an area project manager for the delivery of the bulk earthworks\, concrete and underground services scope of work. \nPreviously he was involved in the execution of the RTIO expansion projects\, including the RTIO Rail Capacity Enhancement Project to 353 Mtpa and the RTIO Cape Lambert Quarry and Tug Harbour upgrade.
URL:https://australiantunnellingsociety.com.au/ats-event/bhp-south-flank-project-presentation/
LOCATION:999 Hay Street\, Perth
CATEGORIES:Western Australia
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DTSTART;TZID=Australia/Sydney:20211028T130000
DTEND;TZID=Australia/Sydney:20211028T140000
DTSTAMP:20211020T005046Z
CREATED:20211020T005046Z
LAST-MODIFIED:20211020T005046Z
UID:16506-1635426000-1635429600@australiantunnellingsociety.com.au
SUMMARY:Trenchless renewal of Unitywater's water main at Narangba
DESCRIPTION:The Australasian Society for Trenchless Technology is holding a webinar on Unitywater’s Water Main—Narangba\, Queensland and have kindly extended the invite to the ATS. \nThe ASTT is thrilled to provided this free webinar which will be a joint presentation by Will Zillmann from Interflow\, and Andrew Lindsay and CJ Mitchell from Unitywater. \nOverview\nAgeing pressure water main infrastructure represents a significant risk to water authorities throughout Australia and New Zealand (A/NZ). Asbestos cement (AC) pipe makes up around 40\,000 to 50\,000km of these assets across the A/NZ region. Most of these AC assets are reticulation sizes (DN100/150) and\, with an average life expectancy of around 60 years\, represent a major financial\, environmental and social risk as they come to the end of their service life. \nUnitywater has a significant cohort of these AC water main assets and have been actively searching for a sustainable renewal solution to replace traditional methods such as lift and relay. Traditional methods can be slow\, expensive and risky\, with no known safe exposure level for asbestos. \nThe RediFlow® technology bundle by Interflow is one such solution to address the desires of Water Authorities\, such as Unitywater\, for safe and sustainable methods to renew these essential assets. The RediFlow® technology bundle is the amalgamation of Interflow’s innovative die-reduction slip lining technology (TiteFlow® H112) and their patented in-line water stop technology (Infrastop®). Together\, this pairing offers a sustainable\, trenchless renewal option for existing AC watermains. \nRecently\, Unitywater partnered with Interflow to trial RediFlow® on 481m of DN100 AC reticulation pipe in the suburb of Narangba. This paper will walk through the trial from inception to delivery and share the results of this innovative process\, which delivered a cost-effective solution with low environmental and community impacts as well as minimal asbestos exposure risk.\n \nJoin the webinar on 28 October at 1 pm AEDT using this Zoom link. \nIf you experience difficulties in joining this free event\, then please email Jeff Pace\, ASTT Secretary on secretary@astt.com.au for assistance. \n 
URL:https://australiantunnellingsociety.com.au/ats-event/trenchless-renewal-of-unitywaters-water-main-at-narangba/
CATEGORIES:Webinar
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