BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Australian Tunnelling Society - ECPv6.16.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://australiantunnellingsociety.com.au
X-WR-CALDESC:Events for Australian Tunnelling Society
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Australia/Sydney
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20250405T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20251004T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20260404T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20261003T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20270403T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20271002T160000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Australia/Melbourne
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20250405T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20251004T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20260404T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20261003T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20270403T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20271002T160000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:Australia/Brisbane
BEGIN:STANDARD
TZOFFSETFROM:+1000
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20250101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260226T173000
DTEND;TZID=Australia/Sydney:20260226T183000
DTSTAMP:20260523T083047
CREATED:20260209T045233Z
LAST-MODIFIED:20260209T045305Z
UID:238753-1772127000-1772130600@australiantunnellingsociety.com.au
SUMMARY:High speed rail tunnel aerodynamics
DESCRIPTION:Overview\nThe webinar will focus on the aerodynamic phenomena and effects associated with the high-speed passage of a train through a tunnel. We will begin by describing the pressure waves generated as a high-speed train enters a tunnel\, passes through changes in tunnel geometry\, crosses another train and exits the tunnel. Their generation\, propagation\, reflection\, and transmission will be discussed. Airflow patterns induced inside the tunnel\, influenced by blockage ratio\, tunnel geometry and train speed\, will also be presented. \nIn the second part\, we will examine the impact of these pressure waves on passenger tympanic comfort and safety\, both on the platforms of underground stations and on board high-speed trains. Their effects on tunnel equipment\, such as ventilation systems and platform screen doors\, as well as on the trains themselves\, will also be addressed. Finally\, we will discuss aerodynamic drag and the factors that help reduce it\, including the construction of pressure relief shafts or the creation of a partial air vacuum. \nThis will lead us to conclude with a brief exploration of the hyperloop concept. The presentation will be supported by experimental results and numerical simulations based on real world case studies. \nLearning outcomes\nIn this event\, you will: \n\nhave an appreciation of the aerodynamic challenges experienced in a high-speed rail tunnel environment and what measures should be taken during the design and construction of such systems\nobtain a good overview of different systems that are affected and will give the audience a general understanding of the problem.\n\nProgram\n\n5.30 pm AEDT: Presentation begins\n6.30 pm AEDT: Presentation ends\n\nAbout the speakers\n\n\n\nMichele Mossi\nPresident\, CEO and Founder\, GESTE\n\nMichele Mossi (born 1970) is a physicist and engineer who graduated from the Swiss Federal Institute of Technology in Lausanne (EPFL)\, where he also earned a PhD in aerodynamics. He is the founding CEO of GESTE Engineering\, an engineering consultancy specializing in railway technology and safety. He specializes in aerodynamics\, ventilation\, and safety. As a consulting engineer and project director\, he has contributed to numerous projects in these fields for railway\, metro\, road\, and river tunnels across Europe\, the United Arab Emirates\, and the United States. He is also an expert in hyperloop system.\n\n\n\n\n\n\n\nPaolo Molteni\nProject Manager – Business Unit Manager FLOWS\, GESTE\n\nPaolo Molteni (1971)\, an aerospace engineer and PhD graduate from the Politecnico di Milano\, is a consulting engineer specialized in ventilation\, aerodynamics\, thermal engineering\, and pedestrian flows. He has specific training in computational fluid dynamics and is an expert in numerical simulation and computation (CFD). He is the Head of the FLOWS Business Unit (aerodynamics\, thermal engineering\, ventilation\, and flows) at GESTE Engineering. He has carried out numerous projects involving the ventilation of metro tunnels\, road and railway tunnels\, as well as stations and buildings open to the public. He is the main developer of the 1D calculation software TNT\, designed for the simulation of unsteady\, compressible\, and non-isothermal flows in complex tunnel networks.
URL:https://australiantunnellingsociety.com.au/ats-event/high-speed-rail-tunnel-aerodynamics/
LOCATION:Webinar\, Register via the link to join!
CATEGORIES:Online,Webinar
ATTACH;FMTTYPE=image/jpeg:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/02/Screenshot-2026-02-09-154858.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260310T230000
DTEND;TZID=Australia/Sydney:20260311T003000
DTSTAMP:20260523T083047
CREATED:20260225T020645Z
LAST-MODIFIED:20260225T020722Z
UID:248730-1773183600-1773189000@australiantunnellingsociety.com.au
SUMMARY:ITA Lecture - BIM and Tunnelling
DESCRIPTION:ITA Lecture Series #54  \nTopic: BIM and Tunnelling \nThis instalment of the Lunchtime lecture series will focus on ‘BIM and tunnelling’. The session will present the New Guideline on BIM in Tunnelling for mechanised and conventional tunnels\, as developed by ITA AITES WG22. Our Vice-President Jurij Karlovsek will be one of the presenters in this session. \nThe episode will feature five parts and will finish with a Q&A with all speakers. It will begin at 13:00 CET (11pm AEDT). \n\nIntroduction to WG22 – Florent Robert\nOverview & History – Jurij Karlovsek\nPresentation of the Guideline – Vojtech Ernst Gall\nDemonstration video of TBM & Conventional Tunnelling model – Wojciech Mleczko & Maja Mijalna\nFurther Developments – Jure Cesnik\n\nFollowing the five presentations there will be time for Q&A with the presenters \nThe Lunchtime lecture series remains free and open to all. For all those that cannot join ‘live’ online\, please register and you will receive a link to stream the episode after the event – this link will be valid for four weeks. After these four\, anyone wanting to watch the episode can do so by registering for the episode on the ITA website\, but there will be a small fee to watch. \nRegister for the event here: Lunchtime lecture series#54 – ITACET
URL:https://australiantunnellingsociety.com.au/ats-event/ita-lecture-bim-and-tunnelling/
LOCATION:Webinar
CATEGORIES:Online
ATTACH;FMTTYPE=image/jpeg:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/02/Template.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260401T173000
DTEND;TZID=Australia/Sydney:20260401T193000
DTSTAMP:20260523T083047
CREATED:20260324T004154Z
LAST-MODIFIED:20260324T004255Z
UID:265775-1775064600-1775071800@australiantunnellingsociety.com.au
SUMMARY:Celebrating International Women's Day 2026: “Engineering Tomorrow: A Shared Commitment to Leadership”
DESCRIPTION:Join us in celebrating International Women’s Day 2026 on April 1st at the GHD office in Sydney.\nOnline and in person event\nThe event will begin with a keynote by Carlos Sanabria\, Precast Yard Manager at Western Harbour Tunnel – P2\, who will share valuable insights into the project’s inclusion initiatives. This will be followed by a panel discussion featuring Natascha Rezai\, Katarina David\, Carlos Sanabria\, and Candice Camacho\, who will offer diverse\, first-hand perspectives from the tunnelling industry through a Diversity\, Equity and Inclusion lens. \nThe 2026 theme\, “Engineering Tomorrow: A Shared Commitment to Leadership\,” highlights the importance of collective responsibility and collaboration in shaping the future of leadership- particularly in engineering and other traditionally male-dominated industries. It emphasises shared leadership\, equal opportunities\, diverse perspectives\, and accountability in driving meaningful and inclusive change. \nThis event will be held both in person and online. Register today! \nPanellists\n \nNatascha Rezai\nTechnical Director – Tunnels | GHD\nAPAC Relationship Manager | GHD\n\nNatascha Rezai is a Tunnel Engineer with experience working for contractors on major tunnelling projects across Australia and internationally\, spanning the design and delivery of complex underground infrastructure.\nPrior to joining GHD\, she held key roles including Design Manager for the City & Southwest packages\, with responsibility for tunnel and cross passage works\, and most recently Tunnel Area Lead on the Western Tunnelling Package (WTP). Recently appointed as APAC Relationship Manager for Gamuda Berhad\, alongside managing GHD’s contractor portfolio across NSW and the ACT\, she focuses on strengthening collaboration between contractors and designers to support successful outcomes on major infrastructure projects. \n \nKatarina David\nTechnical Lead (Hydrogeology)- TfNSW\nKatarina is a registered professional hydrogeologist with over 25 years experience in hydrogeology and groundwater management.  She has a Masters and PhD degree in hydrogeology and has worked on a large range of infrastructure and mining projects throughout her career.  She has worked extensively on NSW\,  Queensland\, South Australian\, Victorian and NSW infrastructure projects such as the Lane Cove Tunnel\, M5East\, M6\, Roselle Interchange \, Great Western Highway\, Western Harbour Tunnel\, Brisbane Airport Link and Melbourne Desalination Plant. Katarina is a technical lead in the tunneling team in TfNSW. \n \nCarlos Sanabria\nPrecast Manager – Western Harbour Tunnel Package 2\nCarlos Sanabria is a highly accomplished civil engineering professional with an MBA and 19 years of international experience delivering complex construction and infrastructure projects. Having lived in Venezuela\, Spain\, Saudi Arabia\, and Australia\, and travelled extensively across Latin America\, Europe\, the Middle East\, South and Southeast Asia\, and Oceania\, he brings a broad global perspective and first-hand understanding of the world’s major infrastructure and trade corridors. Over the course of his career\, Carlos has worked with global industry leaders across the building\, commercial\, industrial\, metro\, roads\, energy\, and railway sectors. He is known for his ability to bring people together\, align diverse stakeholders\, and lead teams toward shared goals while delivering strong operational and project outcomes. Carlos is particularly valued for his relationship-building skills and his ability to work effectively with project teams\, consultants\, contractors\, statutory agencies\, and multicultural workforces. He believes the best project outcomes come from collaboration\, inclusion\, and strong leadership\, and he is proud to support opportunities that recognise and celebrate the contribution of women across the engineering and infrastructure sectors. \n \nCandice Camacho\nOperational Services Director – Western Harbour Tunnel Package 2\nCandice Camacho is the Operational Services Director for ACCIONA on the $4.2 billion Western Harbour Tunnel Stage 2 project in Sydney. With more than 15 years of experience across government and the private sector\, she leads a multidisciplinary portfolio including stakeholder engagement\, environment and sustainability\, workforce development\, social procurement and inclusion\, completions and handover\, and the construction management of Berrys Bay.\nCandice is known for bringing diverse teams together to solve complex problems\, manage risk and deliver strong project outcomes in major infrastructure environments. She is also a passionate advocate for diversity\, sustainability and social value in construction\, and has played a key role in embedding these priorities into project delivery at Western Harbour Tunnel\, championing initiatives that support better industry participation\, workforce development and more meaningful community outcomes. Candice brings a unique blend of strategic insight and people-first leadership\, with tertiary qualifications in Psychology\, Communications and Marketing and is a Roads Australia Fellow. She deeply values the impact people have on a business and is committed to supporting employees in every aspect\, empowering them to thrive and bring their best selves to work. \n 
URL:https://australiantunnellingsociety.com.au/ats-event/celebrating-international-womens-day-2026-engineering-tomorrow-a-shared-commitment-to-leadership/
LOCATION:GHD Office\, Level 15/133 Castlereagh Street\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:Hybrid,New South Wales,Online
ATTACH;FMTTYPE=image/jpeg:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/03/IMG_2923-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260414T210000
DTEND;TZID=Australia/Sydney:20260414T223000
DTSTAMP:20260523T083047
CREATED:20260409T050107Z
LAST-MODIFIED:20260409T050107Z
UID:275677-1776200400-1776205800@australiantunnellingsociety.com.au
SUMMARY:ITA Lecture - Immersed tunnels as an innovative solution
DESCRIPTION:Overview\nThis instalment of the Lunchtime lecture series will focus on ‘Immersed tunnels as an innovative solution’. The session is in collaboration with ITA AITES WG11. \nThe episode will feature three parts and will finish with a Q&A with all speakers. It will begin at 13:00 CEST (9pm AEST). \n\nIntroduction to immersed tunnels – Marcel ‘t Hart\nFirst immersed tunnel in the Middle East; Khor Al‑Zubair tunnel – Martijn Smitt\nWeserquerung\, a challenging river crossing – Jens Classen\n\nFollowing the three presentations there will be time for Q&A with the presenters \nThe ITA lecture series remains free and open to all. For all those that cannot join ‘live’ online\, please register and you will receive a link to stream the episode after the event – this link will be valid for four weeks. After these four weeks\, anyone wanting to watch the episode can do so by registering for the episode on the ITA website\, but there will be a small fee to watch. \nRegister for the event here: https://www.itacet.org/session/lunchtime-lecture-series55/
URL:https://australiantunnellingsociety.com.au/ats-event/ita-lecture-immersed-tunnels-as-an-innovative-solution/
LOCATION:Victoria
CATEGORIES:Online,Webinar
ATTACH;FMTTYPE=image/jpeg:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/02/Template.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Melbourne:20260423T170000
DTEND;TZID=Australia/Melbourne:20260423T190000
DTSTAMP:20260523T083047
CREATED:20260325T022632Z
LAST-MODIFIED:20260331T023935Z
UID:266485-1776963600-1776970800@australiantunnellingsociety.com.au
SUMMARY:Digital engineering on the North East Link
DESCRIPTION:Event overview:\nDigital engineering is transforming how complex infrastructure projects are designed\, delivered\, and operated. The North East Link project in Melbourne\, Victoria\, presented unique challenges in the tunnel environment\, requiring innovative approaches to modelling\, design integration\, and lifecycle management. \nIn this session\, the speaker will detail the digital engineering requirements for the North East Link and demonstrate how Delve Underground applied computational design and digital engineering practices to overcome these challenges. The presentation will highlight practical outputs from digital engineering and show how they are being leveraged for asset operation and maintenance\, illustrating the value of digital processes throughout the project lifecycle. \nLearning outcomes:\n\nUnderstand the digital engineering requirements and challenges faced on the North East Link project.\nExplore practical approaches using computational design to overcome complex tunnel engineering issues.\n\nPresenters:\n \nElnaz Saminfar \nAssociate Digital Engineer at Delve Underground \nElnaz is an Associate Digital Engineer at Delve Underground\, bringing over 13 years of experience in digital engineering and computational design. She has contributed to the successful delivery of some of Australia’s largest infrastructure projects\, as well as several major international projects\, demonstrating a strong track record in managing complex projects. With advanced proficiency in a wide range of digital engineering and computational design software\, she is able to tackle complex project requirements with flexibility and precision. She focuses on optimizing workflows for digital engineering teams\, improving user proficiency\, and reducing maintenance demands\, ensuring projects are delivered efficiently and effectively. Her strategic and forward-thinking approach drives innovation\, enhances team performance\, and elevates overall project outcomes\, consistently aligning technical excellence with practical project delivery goals. \n \nSoheila Moradi \nDigital Engineering Manager – Victorian Infrastructure Delivery Authority (VIDA)\n\nSoheila Moradi is the Digital Engineering Manager at the Victorian Infrastructure Delivery Authority (VIDA)\, leading digital engineering for the North East Link Project\, one of Australia’s largest infrastructure programs. She is also part of VIDA’s Digital Engineering leadership team and contributes to the Victorian Digital Engineering (VTDE) transformation\, supporting how digital practices are applied consistently across major projects. With over 20 years of experience across infrastructure and building projects\, Soheila focuses on making digital delivery practical and useful\, not just a compliance exercise. She has been closely involved in shaping how digital requirements are embedded into contracts\, how data is progressively captured during delivery\, and how asset information is handed over in a way that actually works for operations. She is known for bringing a clear\, outcome-focused approach connecting technical detail with real project needs\, and making sure digital engineering delivers value where it matters most.\n \nBlake Bambridge \nFire Systems Sales – FireSense \nWith over 20 years of experience in the fire protection industry\, I am a proactive and adaptable professional specialising in fire systems design\, project delivery\, and commercial engagement. I bring a strong combination of technical expertise and practical problem-solving\, supported by advanced skills in CAD platforms including Revit and AutoCAD. Currently working in fire systems sales with Firesense\, I focus on building strong relationships with major builders and consultants across the Construction market\, driving effective and compliant fire protection solutions. Previously\, I held a senior role on the North East Link project in Melbourne\, where I managed fire systems packages valued at over $100 million. My responsibilities included contractor onboarding\, government approvals\, and the development of critical project documentation\, while also introducing innovative approaches such as modular design and prefabrication to improve efficiency. \n \nBharat Sharma \n Operation and Maintenance Asset Manager on the North East Link Project (NEL) \nBharat Sharma is an asset management professional specialising in Operation and Maintenance (O&M) of major transport projects. Expertise in developing asset management strategies for complex Public Private Partnership (PPP) environments\, ensuring that operational performance\, risk and value are balanced across the full asset lifecycle. Currently serves as Operation and Maintenance Asset Manager on the North East Link Project (NEL). In this role\, he leads the development of the Project’s Asset Information Management System\, supporting asset management\, operations\, maintenance and incident response functions to meet the project objectives. \n  \nThis is a hybrid event\, hosted at Delve Underground’s Melbourne office at Level 15\, 385 Bourke Street and online. \nPlease note\, physical attendance is capped at 50 people due to spatial requirements.
URL:https://australiantunnellingsociety.com.au/ats-event/digital-engineering-on-the-north-east-link-2/
LOCATION:Delve Underground\, Level 15 / 385 Bourke Street\, Melbourne\, Victoria\, 3000\, Australia
CATEGORIES:Hybrid,Online,Victoria,Webinar
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/03/Screenshot-2026-03-25-131548.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Melbourne:20260513T173000
DTEND;TZID=Australia/Melbourne:20260513T183000
DTSTAMP:20260523T083047
CREATED:20260330T020114Z
LAST-MODIFIED:20260330T020114Z
UID:269673-1778693400-1778697000@australiantunnellingsociety.com.au
SUMMARY:Choosing the right VSD for tunnel ventilation application
DESCRIPTION:Overview\nIn recent years\, several tunnel projects have faced serious setbacks due to catastrophic motor failures. These failures are caused by high peak voltages\, a result of using Active Front End (AFE) VSDs combined with long motor cable lengths\, extending to 500 meters. This session examines the underlying electrical phenomena contributing to these issues and why conventional mitigation methods\, such as standard filters\, are often insufficient. \nParticipants will gain practical insight into proven engineering solutions that deliver near-sinusoidal voltage at the motor terminals\, reducing stress on insulation and extending asset life. Drawing on real-world case studies and field testing\, the session highlights key design considerations\, specification pitfalls\, and lessons learned to support more reliable tunnel ventilation system performance. \nLearning outcomes\nIn this event\, attendees will be able to: \n\nidentify the root causes of high peak voltages in AFE VSD tunnel applications\nevaluate why conventional filtering methods may not adequately protect motors apply practical design and specification strategies to prevent premature motor failure\nselect VSD and mitigation solutions that improve reliability and extend asset life\n\nProgram\nIn-person: \n\n5.00 pm AEST: Guest arrivals and registrations\n5.30 pm AEST: Presentation begins\n6.15 pm AEST: Q/A begins\n6.30 pm AEST: Event close\n\nOnline: \n\n5.30 pm AEST: Presentation begins\n6.30 pm AEST: Presentation ends\n\nAbout the speakers\n\n\n\nJoris Feekman\nRegional Sales Manager\, Danfoss Drives\n\nJoris is Regional Sales Manager at Danfoss Drives\, with over 25 years of experience in electrical drives and industrial power conversion. He has experience across Europe and Australia\, delivering reliable motor control solutions across a wide range of industrial applications.\n\n\n\n\n\n\n\n\nHusain Natalwala\nBusiness Development Manager\, Danfoss Drives\nHusain has strong experience supporting large-scale industrial and infrastructure projects\, with exposure to Industrial Automation and Electrical Systems. At Danfoss\, he works as a BDM focussing on Tunnel Ventilation\, Water and Food Industries.
URL:https://australiantunnellingsociety.com.au/ats-event/choosing-the-right-vsd-for-tunnel-ventilation-application/
LOCATION:Online and in person at EA Melbourne\, Level 26\, 181 William Street\, Melbourne\, VIC\, 3000\, Australia
CATEGORIES:Online,Victoria,Webinar
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/03/Screenshot-2026-03-30-130022.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260604T180000
DTEND;TZID=Australia/Brisbane:20260604T190000
DTSTAMP:20260523T083047
CREATED:20260505T005210Z
LAST-MODIFIED:20260505T005210Z
UID:291886-1780596000-1780599600@australiantunnellingsociety.com.au
SUMMARY:The ground investigation for a storage cavern in metamorphic rock at 600 m depth
DESCRIPTION:Overview\nThis presentation describes the processes used in the investigations for a deep compressed air storage cavern in a complex metamorphic environment. The exploration process involved drilling using HQ-3 coring techniques from surface and also from an adjacent underground mine. The latter were two 460 m boreholes drilled just sub horizontally across the planned cavern location. \nThe core from these holes was logged for structure and sampled for rock property testing. Because a significant portion of the rock was highly anisotropic the test methods used had to be adapted. This included alternative ways of working with point load testing\, triaxial testing for anisotropy of moduli and some special shear tests.  Because of the importance of determining potential leakage of groundwater into the cavern\, or of air out of the cavern\, the correct measurement of the ground fluid pressure and the permeability of the rock mass were extremely important. \nTesting had to be conducted in stages to cover the entire length of the holes. The method used was to fit the drill rods with a straddle packer assembly\, downhole valve system and suitable precision pressure monitoring with operator read out. First the test zone was shut in to recover pressure. This was followed by a period of injection or production which was followed by another shut in period. These tests followed oilfield practice but with tools designed to work with HRQ drill rod and used horizontally. \nThe rock stress was determined by the use of three dimensional overcore tools used up to 441 m laterally. Other techniques could have also been advantageously used to fill in the sparse overcore data in the extremely complex geological environment. The vertical and the horizontal holes were logged using both acoustic televiewer and full wave sonic sondes. \nThe conclusions of the study were that the rock mass was heterogeneous but fit for purpose provided that the correct design decisions were made. The presentation also looks at what can be achieved from open hole drilling test techniques compared to coring and the comparative costs of these. This has particular relevance to tunnel investigations. \nProgram timeline\nOnline \n6.00pm – Presentation commences \n7.00pm – Presentation concludes \nIn-Person \n5.30pm – Registration\, networking & catering \n6.00pm – Presentation commences\, networking \n7.00pm – Event concludes \nLearning outcomes\n\nYou should gain an appreciation of the importance of geology.\nYou will gain an understanding of the methods used to determine the states of stress in rock and the measurement of anisotropic rock properties.\nThe methods used and the importance of determining fluid pressures and permeability properly are extremely important and should totally replace conventional packer testing.\n\nAbout the speaker\n\n\n\nIan Gray\nManaging Director\, Sigra Pty Ltd\n\nDr Ian Gray is the managing director of Sigra Pty Ltd\, a role he has held for 32 years. In his career he has had the roles of mining\, civil\, geotechnical and reservoir engineers\, engineering geologist and hydrogeologist. He has worked in 20 countries dealing with mines\, tunnels\, slopes\, petroleum reservoirs and anything else in the ground. One of his passions is actually measuring things in the ground properly. To do this he has developed a suite of equipment and techniques. He also works with a variety of drilling systems.
URL:https://australiantunnellingsociety.com.au/ats-event/the-ground-investigation-for-a-storage-cavern-in-metamorphic-rock-at-600-m-depth/
LOCATION:Online and in person at: Level 9\, 340 Adelaide Street\, Brisbane
CATEGORIES:Online,Queensland,Webinar
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/05/Screenshot-2026-05-05-105122.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260609T210000
DTEND;TZID=Australia/Sydney:20260609T223000
DTSTAMP:20260523T083047
CREATED:20260514T061203Z
LAST-MODIFIED:20260514T061338Z
UID:297511-1781038800-1781044200@australiantunnellingsociety.com.au
SUMMARY:Single vs Twin-Tube Tunnel Configurations in Urban Environments
DESCRIPTION:Overview\nThis instalment of the ITA lecture series will focus on ‘Single vs Twin-Tube Tunnel Configurations in Urban Environments: A Risk-Informed\, Multi-Criteria Decision Framework’. The session is in collaboration with ITA AITES WG20. \nThis episode will feature four parts: \n\nProblem statement – Wout Broere\nGeneral multi criteria method – Giuseppe Gaspari\nCase histories from Asia and Europe – Pedro Ramírez Rodríguez \nCase histories from America – pros/cons – Sotirios Vardakos\n\nFollowing the three presentations there will be time for Q&A with the presenters \nThe ITA lecture series remains free and open to all. For all those that cannot join ‘live’ online\, please register and you will receive a link to stream the episode after the event – this link will be valid for four weeks. After these four weeks\, anyone wanting to watch the episode can do so by registering for the episode on the ITA website\, but there will be a small fee to watch. \nRegister for the event here: https://www.itacet.org/session/lunchtime-lecture-series56/
URL:https://australiantunnellingsociety.com.au/ats-event/ita-lecture-single-vs-twin-tube-tunnel-configurations-in-urban-environments/
LOCATION:Online
CATEGORIES:Online
ATTACH;FMTTYPE=image/jpeg:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/02/Template.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260714T173000
DTEND;TZID=Australia/Brisbane:20260714T183000
DTSTAMP:20260523T083047
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
ATTACH;FMTTYPE=image/png:https://australiantunnellingsociety.com.au/wp-content/uploads/2026/05/Screenshot-2026-05-04-122944-e1777861856140.png
END:VEVENT
END:VCALENDAR