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DTSTART;TZID=Australia/Melbourne:20260706T173000
DTEND;TZID=Australia/Melbourne:20260706T193000
DTSTAMP:20260619T204028
CREATED:20260528T013853Z
LAST-MODIFIED:20260615T054727Z
UID:306428-1783359000-1783366200@australiantunnellingsociety.com.au
SUMMARY:Testing of Sprayed Fibre Reinforced Concrete for the Design of Tunnel Linings
DESCRIPTION:REGISTER NOW!\nAssessing toughness characterization of sprayed FRC by adopting EN14488-3 2022 Method B\nEvent overview \nFibre reinforced concrete (FRC) design has been widely used for sprayed permanent linings in tunnels with substantial recent developments in design methods and mix design. One such development has been reliance on the toughness characteristics to inform the design versus the different methods of panel testing. This presentation discusses the 2025 fib bulletin 116 recommendations with a focus on testing and performance criteria. By adopting EN 14488-3 procedure for the toughness characterisation of the sprayed FRC\, it is possible to derive the key parameters that are necessary for the design according to fib Model Code 2010 in an easy quantifiable manner. \nThe presentation will also highlight the advantages and drawbacks of various shotcrete testing methods\, the importance for shotcrete testing to directly relate to design methods\, and an insight into the latest shotcrete testing methods. \nTimings \n\n5:30pm: Welcome and networking\n6:00pm: Presentation\n6:45pm: Q&As\n\nSpeaker\n\nGAN Cheng Chian\nB. Eng. (CIVIL) National University of Singapore 1989\nTechnical Manager and member of the Working Group on SS674-2021 since Jan 2019. Domain Expert for Sprayed Concrete and Fibre Reinforced Concrete under Intelligent National Productivity and Quality Specification Singapore since Mar 2019. 37 years of civil engineering experience. 1998 to present\, involved in over 22 sprayed fibre concrete tunnel linings and over 20 fibre concrete precast segmental and cast concrete tunnel lining projects.\n \nSponsor
URL:https://australiantunnellingsociety.com.au/ats-event/testing-of-sprayed-fibre-reinforced-concrete-for-the-design-of-tunnel-linings-2/
LOCATION:ARUP Melbourne\, Sky Park 1\, Melbourne Quarter\, 699 Collins Street\, Victoria\, 3008
CATEGORIES:Victoria
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BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260714T173000
DTEND;TZID=Australia/Brisbane:20260714T183000
DTSTAMP:20260619T204028
CREATED:20260504T023108Z
LAST-MODIFIED:20260504T023856Z
UID:291380-1784050200-1784053800@australiantunnellingsociety.com.au
SUMMARY:SLAM LiDAR for transport tunnel surveying
DESCRIPTION:Overview\nThe term “mobile mapping” is well established in the survey industry — typically referring to large vehicle-mounted systems that combine high-end LiDAR with precision GNSS and IMU hardware. These systems are powerful\, but they are expensive\, require GPS to function reliably\, and are fundamentally limited by what a vehicle can reach. This presentation introduces a different class of technology: SLAM-based mobile LiDAR scanning. Rather than relying on GPS and inertial positioning\, SLAM (Simultaneous Localisation and Mapping) builds a map of the environment in real time and uses that map to track its own position — making it inherently suited to GPS-denied environments such as tunnels\, underpasses\, and confined underground spaces. We’ll explain how SLAM works from first principles\, how it compares to traditional survey methods (total stations\, static TLS) and conventional mobile mapping systems\, and where each approach has genuine advantages. We’ll also discuss SLAM’s limitations: where it struggles\, what affects accuracy\, and the scenarios where traditional methods remain the better choice. Attendees will leave with a grounded\, practical understanding of how SLAM-based mobile LiDAR works\, how it fits alongside conventional survey techniques\, and when it is — and isn’t — the right tool for a tunnel project. \nProgram timeline\nOnline \n5.30pm – Presentation commences \n6.15pm – Q&A \n6.30pm – Presentation concludes \nIn-person \n5.00pm – Registration opens \n5.30pm – Event commences \n6.15pm – Q&A \n6.30pm – Event concludes \nLearning outcomes\n\nWhat SLAM is and how it differs fundamentally from GPS/IMU-based mobile mapping systems\nThe trade-offs between SLAM-based scanning\, conventional MMS\, static TLS\, and total station survey — and how to choose the right approach\nAn overview of Emesent’s Hovermap ST-X and GX1 platforms and how they are deployed in tunnel environments (drone\, vehicle\, backpack)\nWhat real transport tunnel scanning data looks like\, and how it flows from capture through Aura to engineering deliverables\nHonest limitations of SLAM-based scanning and the scenarios where it is not the best fit\n\nAbout the speaker\n\n\n\nStefan Hrabar\nChief Strategy Officer & Co-Founder\, Emesent\n\nDr Stefan Hrabar is Chief Strategy Officer and Co-Founder of Emesent\, a global leader in autonomous mapping technology. With a background in robotics and autonomous systems research at CSIRO\, Stefan co-founded Emesent in 2018 to bring advanced SLAM-based mapping technology to real-world infrastructure and industrial environments. He has worked extensively on the application of mobile LiDAR and autonomous systems in GPS-denied and access-restricted environments\, including tunnels\, mines\, and complex built infrastructure.
URL:https://australiantunnellingsociety.com.au/ats-event/slam-lidar-for-transport-tunnel-surveying/
LOCATION:Online and in person at: Level 9\, 340 Adelaide Street\, Brisbane
CATEGORIES:Online,Queensland
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BEGIN:VEVENT
DTSTART;TZID=Australia/Melbourne:20260714T173000
DTEND;TZID=Australia/Melbourne:20260714T193000
DTSTAMP:20260619T204028
CREATED:20260430T061311Z
LAST-MODIFIED:20260616T002119Z
UID:289375-1784050200-1784057400@australiantunnellingsociety.com.au
SUMMARY:David Sugden Roadshow - Melbourne - Uncovering veins: impacts on deep tunnel engineering
DESCRIPTION:Overview\nHydrothermal veins are often overlooked or misinterpreted within deep\, heterogeneous rock masses\, yet their behaviour can dramatically influence tunnelling outcomes. In his award winning 2025 David Sugden Award paper\, Yosafat Sinaga reveals how these vein systems are frequently mistaken for open joints\, leading to inaccurate geological models and flawed design assumptions. This session will explore why correct vein characterisation is essential for both safety and project efficiency. Misjudging these features can result in two costly extremes: overly conservative support designs that inflate construction budgets\, or unexpected\, hazardous rockbursts triggered by misunderstood ground conditions. By examining real case insights and engineering implications\, this event will provide tunnelling and geotechnical professionals with a deeper understanding of the subsurface complexities that lie beneath\, and how better interpretation can reduce risk and improve decision making. \nLearning outcomes\n\nWalk away with practical steps to avoid design errors caused by misinterpreting veins in deep tunnel projects.\nCorrectly interpret veined rock masses in core logging and face mapping and recognise when “broken-looking” core does not mean a poor-quality\, jointed rock mass.\nHow vein intensity and in situ stress interact to drive overbreak\, damage propagation\, and reinforcement demand in high-stress excavations\n\nAbout the speaker\n\n\n\nYosafat Sinaga\nGeotechnical Engineer\, NOMA Consulting\nYosafat Sinaga is a Geotechnical Engineer at NOMA Consulting with over five years of experience delivering geotechnical design and construction support for mining and tunnelling projects in Australia\, Singapore\, Papua New Guinea\, and Indonesia. He has contributed to major infrastructure and underground mining developments\, specialising in rock mass and structural geological characterisation\, advanced 2D and 3D numerical modelling\, and primary tunnel support design optimisation. His recent project work includes optimising primary support design for road tunnels excavated using the Drill & Blast method\, developing detailed designs for temporary Earth Retaining and Stabilising Structures (ERSS) for rail and service tunnels\, and providing geotechnical input for underground copper mining projects employing sub-level and block caving methods.
URL:https://australiantunnellingsociety.com.au/ats-event/david-sugden-roadshow-melbourne-uncovering-veins-impacts-on-deep-tunnel-engineering/
LOCATION:WSP Melbourne Office\, Level 11\, 567 Collins St\, Melbourne\, 3000\, Australia
CATEGORIES:Victoria
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/03/Figure-1.png
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BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260716T173000
DTEND;TZID=Australia/Sydney:20260716T193000
DTSTAMP:20260619T204028
CREATED:20260430T061544Z
LAST-MODIFIED:20260616T002020Z
UID:289379-1784223000-1784230200@australiantunnellingsociety.com.au
SUMMARY:David Sugden Roadshow – Sydney – Uncovering veins: impacts on deep tunnel engineering
DESCRIPTION:Overview\nHydrothermal veins are often overlooked or misinterpreted within deep\, heterogeneous rock masses\, yet their behaviour can dramatically influence tunnelling outcomes. In his award winning 2025 David Sugden Award paper\, Yosafat Sinaga reveals how these vein systems are frequently mistaken for open joints\, leading to inaccurate geological models and flawed design assumptions. This session will explore why correct vein characterisation is essential for both safety and project efficiency. Misjudging these features can result in two costly extremes: overly conservative support designs that inflate construction budgets\, or unexpected\, hazardous rockbursts triggered by misunderstood ground conditions. By examining real case insights and engineering implications\, this event will provide tunnelling and geotechnical professionals with a deeper understanding of the subsurface complexities that lie beneath\, and how better interpretation can reduce risk and improve decision making. \nLearning outcomes\n\nWalk away with practical steps to avoid design errors caused by misinterpreting veins in deep tunnel projects.\nCorrectly interpret veined rock masses in core logging and face mapping and recognise when “broken-looking” core does not mean a poor-quality\, jointed rock mass.\nHow vein intensity and in situ stress interact to drive overbreak\, damage propagation\, and reinforcement demand in high-stress excavations\n\nAbout the speaker\n\n\n\nYosafat Sinaga\nGeotechnical Engineer\, NOMA Consulting\nYosafat Sinaga is a Geotechnical Engineer at NOMA Consulting with over five years of experience delivering geotechnical design and construction support for mining and tunnelling projects in Australia\, Singapore\, Papua New Guinea\, and Indonesia. He has contributed to major infrastructure and underground mining developments\, specialising in rock mass and structural geological characterisation\, advanced 2D and 3D numerical modelling\, and primary tunnel support design optimisation. His recent project work includes optimising primary support design for road tunnels excavated using the Drill & Blast method\, developing detailed designs for temporary Earth Retaining and Stabilising Structures (ERSS) for rail and service tunnels\, and providing geotechnical input for underground copper mining projects employing sub-level and block caving methods.
URL:https://australiantunnellingsociety.com.au/ats-event/david-sugden-roadshow-sydney-uncovering-veins-impacts-on-deep-tunnel-engineering/
LOCATION:EA Sydney Office\, Mezzanine Level\, 44 Market Street\, Sydney\, New South Wales\, 2000\, Australia
CATEGORIES:New South Wales
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/03/Figure-1.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Melbourne:20260721T173000
DTEND;TZID=Australia/Melbourne:20260721T190000
DTSTAMP:20260619T204028
CREATED:20260615T050245Z
LAST-MODIFIED:20260615T050245Z
UID:315903-1784655000-1784660400@australiantunnellingsociety.com.au
SUMMARY:Smarter stress estimation for Australia's expanding underground infrastructure
DESCRIPTION:Overview\nAustralia’s underground infrastructure pipeline is expanding rapidly\, from metro and road tunnels to caverns for pumped hydro energy storage and subsurface storage facilities. As we push deeper and into more complex ground\, reliable estimation of in-situ stress becomes increasingly important for safe\, economical excavation design. Yet the conventional ways of measuring stress – overcoring and hydraulic fracturing – are expensive\, slow\, and often difficult to carry out reliably\, especially in weak or complex ground. Meanwhile\, the drilling and geophysical logging programs we already run on most projects generate large volumes of borehole data. Much of this data goes underused. \nThis presentation shows how borehole breakout data\, the localised failures that form on a borehole wall when stress concentrations exceed the rock’s strength\, can tell us more than just the direction of stress. By analysing breakout geometry\, we can also estimate the magnitude of horizontal stresses. The method draws on laboratory testing\, 3D breakout geometry extraction\, numerical modelling\, and machine-learning techniques that estimate rock strength from geophysical logs. This research has been incorporated into BBSET.NET\, a free web-based tool that enables practitioners to estimate stress from routine borehole observations. \nKey takeaways include: Breakout geometry indicating stress magnitudes\, not just orientation. Routine borehole logging data holds untapped value for stress estimation. BBSET.NET utilisation as a practical\, accessible tool for project teams. \nThis event is free for all ATS Members \nLearning outcomes\nIn this event\, you will understand: \n\nusing borehole breakouts to estimate underground stress direction and magnitude\, getting more value from routine borehole and geophysical logging data\ndigital tools and BBSET.NET for practical stress estimation.\n\nProgram\n\n5.30 pm AEST: Guest arrivals and registrations\n6.00 pm AEST: Presentation begins\n6.45 pm AEST: Q/A begins\n7.00 pm AEST: Event concludes\n\nAbout the speaker\n\n\n\nJoung Oh\nAssociate Professor – UNSW School of Minerals and Energy Resources Engineering\n\nDr Joung Oh is an Associate Professor in the School of Minerals and Energy Resources Engineering at UNSW Sydney. He has over 20 years of experience in geotechnical and mining engineering\, spanning both industry and academia in the US and Australia.  After completing his PhD\, Joung worked as a research associate and licensed Professional Engineer (PE) on projects including rock slope failure analysis\, ground movement assessment in urban areas\, and underground cavern stability evaluation. From 2009\, he served as a senior geotechnical and tunnel engineer at Parsons Brinckerhoff (now WSP)\, contributing to major tunnel and infrastructure projects in Manhattan and internationally. Since joining UNSW in 2013\, Joung has led numerous industry- and government-funded research projects and provided consultancy to mining companies. He currently supervises 11 PhD candidates and has guided 19 postgraduate students to completion. He has authored over 100 journal articles and conference papers and chairs the School’s Teaching and Learning Committee.
URL:https://australiantunnellingsociety.com.au/ats-event/smarter-stress-estimation-for-australias-expanding-underground-infrastructure/
LOCATION:Level 26 181 William Street\, Melbourne\, Victoria\, 3000
CATEGORIES:Victoria
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DTSTART;TZID=Australia/Sydney:20260721T173000
DTEND;TZID=Australia/Sydney:20260721T193000
DTSTAMP:20260619T204028
CREATED:20260604T021922Z
LAST-MODIFIED:20260604T021944Z
UID:310816-1784655000-1784662200@australiantunnellingsociety.com.au
SUMMARY:Modernising Tasmania's hydropower legacy
DESCRIPTION:Note this event is online and in person in Brisbane \nOverview\nTasmania’s hydropower network has played a critical role in Australia’s renewable energy landscape for more than a century. As ageing infrastructure is upgraded to meet future energy demands\, engineers are increasingly required to balance operational continuity\, complex geology\, environmental considerations\, and modern construction approaches. \nThis presentation will provide an overview of the Lake King William upgrade works delivered by Hydro Tasmania and Entura\, with support from PSM as part of the Integrated Owner’s Engineering Team. Located in Tasmania’s Central Highlands\, the project involved excavation through challenging Jurassic dolerite and required innovative engineering and construction solutions to manage geotechnical risk\, site constraints\, and long term asset performance.  Attendees will gain practical insights into the delivery of large scale hydropower infrastructure projects\, including stakeholder collaboration\, engineering decision making\, and lessons learned from working in complex geological conditions. The session will also explore the broader importance of hydropower modernisation in supporting Tasmania’s renewable energy future and maintaining resilient energy infrastructure. \nProgram timeline\nOnline \n6.00pm – Presentation commences \n7.00pm – Presentation concludes \nIn-Person \n5.30pm – Registration opens\, catering & refreshments \n6.00pm – Presentation commences \n7.00pm – Presentation concludes \n7.30pm – Event concludes \nLearning outcomes\nIn this presentation\, you will learn : \n\nHow hydropower infrastructure upgrades support Tasmania’s future energy system\nKey engineering and geotechnical challenges encountered on the Lake King William upgrade\nPractical approaches to managing excavation and construction risks in complex geological environments\nLessons learned from collaboration across integrated engineering and project delivery teams\n\nAbout the speaker\n\n\n\nHarry Buchanan\nSenior Geotechnical Engineer\, PSM\n\nHarry is a senior geotechnical engineer with a keen interest in underground structures and mining. He has over 4 years experience in a variety of projects from feasibility studies to detailed design and construction phase services in both mining and civil works. Harry has been involved in the design and construction of wide span caverns\, mined tunnels and shafts on the Cross River Rail project.
URL:https://australiantunnellingsociety.com.au/ats-event/modernising-tasmanias-hydropower-legacy/
LOCATION:Online and in person at: Level 9\, 340 Adelaide Street\, Brisbane
CATEGORIES:Online,Queensland
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DTSTART;TZID=Australia/Adelaide:20260723T180000
DTEND;TZID=Australia/Adelaide:20260723T193000
DTSTAMP:20260619T204028
CREATED:20260602T045537Z
LAST-MODIFIED:20260602T045537Z
UID:309636-1784829600-1784835000@australiantunnellingsociety.com.au
SUMMARY:Tunnel design and constructability on the T2D project
DESCRIPTION:Overview\nOnline and in person event \nThe T2D Project represents the final and most complex stage of South Australia’s North–South Corridor\, delivering a 10.5 km section of motorway that will complete 78 km of uninterrupted\, traffic light-free travel between Gawler and Old Noarlunga. Awarded in September 2024 under a collaborative Alliance model to Bouygues John Holland and design partners Arcadis and Jacobs\, the project involves the concurrent operation of three tunnel boring machines (TBMs) to construct twin southern tunnels of approximately 4 km and twin northern tunnels of approximately 2.5 km. \nThis session will provide a practitioner-led overview of the adopted tunnel design and construction approach\, with a focus on the geotechnical conditions of the Adelaide Plains and their influence on design decisions and constructability. Presenters will examine key challenges encountered during the alliance development phase\, including ground conditions\, groundwater management\, and urban interface constraints\, and how these have informed the selection of TBM configuration\, lining design and construction methodologies. Attendees will gain insight into how integrated design and construction planning is being applied to manage risk\, optimise performance\, and support safe and efficient delivery of one of Australia’s largest road infrastructure projects. \nLearning outcomes\nIn this presentation\, you will gain insight into: \n\nthe technical complexities of designing and constructing this major tunnel project within the Adelaide plains geological conditions\nthe consideration and selection of specific designs for project elements\nwhat construction initiatives have been proposed to drive the successful outcomes in functionality and time of delivery.\n\nProgram\nIn-person \n\n5.00 pm ACST: Registration and networking\n5.30 pm ACST: Presentation begins\n7.00 pm ACST: Presentation close and networking begins\n7.30 pm ACST: Event close\n\nOnline \n\n6.00 pm AEST: Presentation begins\n7.30 pm AEST: Presentation closes\n\nAbout the speakers\n\n\n\nMalcolm Short FIEAust CPEng EngExec NER\nDirector\, Engineering North South Corridor Program Delivery Office\n\nMalcolm has both Honours and Masters degrees in civil engineering from the University of Adelaide. He is a chartered engineer\, a Fellow of the Institution of Engineers and a member of the Australasian Tunnelling Society. His experience includes development\, bidding and delivery of a range of major infrastructure projects in Australasia\, South East Asia and the Far East\, including tunnel projects in Melbourne\, Sydney\, Brisbane\, Perth and now Adelaide. \nMalcolm has worked for designers and major contractors in Australasia\, the UK and Asia over a forty year period. In late 2020\, he returned to Adelaide and joined the Department for Transport and Infrastructure as Director\, Engineering in the North South Corridor Program Delivery Office for the River Torrens to Darlington Project. In the last five years he has been responsible for development of the Reference Design and then engineering aspects of procuring major contractors for the Project. He is now a member of the Alliance Leadership Team for the Project and is also responsible for technical oversight of project delivery. \n\n\n\n\n\n\nRuby Chan Sin Ping CPEng\nSenior Technical Manager\, Bouygues Construction Australia\n\nRuby is a Chartered Geotechnical Engineer and Chartered Geologist specialising in underground and tunnelling construction\, with more than 15 years’ experience in major infrastructure projects\, including large-diameter TBM works in complex ground conditions. \nShe currently leads geotechnical delivery for tunnelling works in T2D Project\, responsible for ground risk management\, TBM operations support\, and ensuring alignment between design assumptions and actual ground response during construction. Her work focuses on combining engineering judgement with field experience to manage uncertainty and deliver safe\, practical outcomes. \nRuby is passionate about knowledge sharing and practical innovation. She actively supports the development of engineers and promotes integrating design\, construction\, and operations to improve safety\, constructability\, and sustainability in tunnelling. \n\n\n\n\n\n\nAnthony Harding\nGlobal Principal for Tunnel Engineering\, Jacobs\n\n\nAnthony gained a degree and PhD from Edinburgh University\, and joined Halcrow (now part of Jacobs) in London in 2000. Anthony has worked on a wide range of tunnel projects\, covering transportation\, water\, and power markets\, usually within multidisciplinary design-build environments\, frequently taking senior technical and design leadership roles has a particular interest in soft ground and TBM tunnelling\, and.\n\n\nAs Global Principal Anthony is responsible for growing Jacobs’ technical capabilities and helping staff and clients adopt novel solutions and new technologies. He is based in Brisbane\, Australia.
URL:https://australiantunnellingsociety.com.au/ats-event/tunnel-design-and-constructability-on-the-t2d-project/
LOCATION:Engineers Australia Adelaide Office\, 11/108 King William Street\, Adelaide\, South Australia\, 5000
CATEGORIES:South Australia
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