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DTSTART;TZID=Australia/Sydney:20200707T170000
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DTSTAMP:20200623T034644Z
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SUMMARY:Numerical modelling of shallow tunnels to mitigate ground-borne hazards
DESCRIPTION:Overview:\nThis webinar presents an extensive case study undertaken to mitigate the risk of damage to existing buildings and infrastructures due to critical and challenging TBM excavations for the Metro Cityringen in Copenhagen. The TBM tunnel alignment passes under historic buildings at shallow depths\, which poses risks of ground subsidence.\nThree-dimensional models were analysed for the stretch between Marmorkirken and Kongens Nytorv adjacent to masonry buildings dating back to the late 17th century. The numerical models also examined the intersection between the new tunnels and the existing metro lines set only 1.50 m beneath the new ones.\nThe presentation includes the site conditions\, geological features\, geotechnical/construction risks identified\, outline of TBM\, tunnelling sequence and numerical models developed.\nThe takeaways include how numerical models can clarify complex soil-structure interactions when a tunnel is bored in the vicinity of existing structures and assist in resolving technical problems happening at a tunnelling project in the forest of buildings. \nSpeaker:\nJaeseok Yang is a principal geotechnical engineer\, and has over 20 years of research and consultancy experiences in the field of finite element analysis in geotechnical and civil engineering. He started working for MIDAS IT in 2004 as a product planner\, and shifted his focus towards giving user support\, lectures and workshops in 2005. Since 2011\, he is now an international course coordinator\, and lecturing courses on numerical analysis in geotechnical engineering in UK\, Europe\, Russia\, USA\, Middle East\, Singapore and Malaysia.
URL:https://australiantunnellingsociety.com.au/ats-event/numerical-modelling-of-shallow-tunnels-to-mitigate-ground-borne-hazards/
LOCATION:Webinar
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2020/06/Cityringen-Metro.png
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DTSTART;TZID=Australia/Sydney:20200721T170000
DTEND;TZID=Australia/Sydney:20200721T180000
DTSTAMP:20200714T053350Z
CREATED:20200714T045724Z
LAST-MODIFIED:20200714T053350Z
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SUMMARY:Recent Innovations in Ground Support in Sydney Road Tunnels
DESCRIPTION:This event is a joint presentation by the ATS and the Australian Geomechanics Society. Click through the link on the right to register. \nOverview\nThe increased demand to future-proof tunnel projects with respect to long term traffic predictions has led to the proposal of some exceptionally large span tunnels in recent road projects in Australia. For example\, some of the current projects have main line tunnels with continuous excavated spans up to 22 m\, besides other enlarged sections and Y-junction caverns that approach 34 m in span.  These projects do not come without their challenges particularly when they are also combined with a very tight construction programme. David and Mark will present some of their experiences in recent projects in Australia and how some of these challenges were tackled via innovative design solutions. The presenters will discuss developments around design delivery strategies\, spaceproofing\, excavation sequences\, ground support for large tunnels\, shotcrete design and its associated quality control challenges\, and more. \nSpeakers\nDavid Oliveria | Jabobs – Technical Director\nDr David Oliveira is a Technical Director for Asia Pacific and Global Subject Matter Expert in Hard Rock Tunnelling at Jacobs Engineering Group. He has over 20 years in the civil\, geotechnical and tunnelling industry and has been involved on a broad range of projects varying from complex open pit and deep and highly stressed underground mines to major infrastructure projects in a variety of ground conditions and challenging urban environments. \nMark Sheffield | Aurecon – Technical Director\nMark is a Technical Director for the Infrastructure Group at Aurecon. He has over 30 years in tunnelling and heavy civil engineering. He has been involved with major underground projects around the world from feasibility and concept design through to implementation and construction systems in a variety of ground conditions and challenging urban environments. \n 
URL:https://australiantunnellingsociety.com.au/ats-event/recent-innovations-in-ground-support-in-sydney-road-tunnels/
LOCATION:Webinar\, Register via the link to join!
CATEGORIES:New South Wales,Online
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2020/07/Sydney-Road-Projects-DO-and-MS-RevA.png
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