PLAXIS Geotechnical Analysis

Meet the Seequent team at #ECSMGE 2024!   We had a great Geotechnical Workflow short course on Sunday, August 25th. The course showcased how #OpenGround, #Leapfrog Works, #Central, and #GeoStudio & #PLAXIS can be used to link data, allow interpretative modelling, and conduct numerical analysis in a secure, auditable ecosystem. If you want to learn how your company can benefit from Seequent's Geotechnical Product workflow, visit us at booths #32 and #33, or contact our colleagues directly, Ahmed Said Gad, Pedro Reis, Sudur Roy, GMICE, Darrell Lee and Max Campbell. #Geotechnical #Workflow #Geotechnicalengineering #Event

🏗️ ❇️ Practical Example: 3D analysis of a horse-shoe shaped tunnel with pipe forepoles. For tunnels exhibiting a large degree of squeezing, experience shows that it is very difficult to provide support using conventional systems. Very heavy steel ribs or a thick concrete lining would be needed in order to provide the required support pressure, but it is practically impossible to install these safely in an advancing tunnel. One method that has been used successfully in such circumstances is the umbrella arch system. The current example illustrates the use of an umbrella arch of a horse-shoe-shaped tunnel with an excavated span of 12 m and has been initially presented by Hoek (2001). The cover over the tunnel crown is 44 m and the poor-quality flysch in which it is to be excavated has a friction angle φ = 23°, a cohesive strength of c = 0.06 MPa and a deformation modulus of E = 318 MPa. The estimated global rock mass strength is σcm = 0.17 MPa and, for an in-situ stress of p0 = 1.35 MPa, this gives a ratio of rock mass strength to in situ stress σcm / p0 = 0.13 suggesting that very severe squeezing and face instability problems are likely unless appropriate support measures are implemented. Learn more: https://lnkd.in/gKnRYubY #PLAXIS #Learning

🚀 Exciting news for all geotechnical engineers! The PLAXIS 2024.2 release is here, bringing safer design capabilities for tailings dams and tunnels in rock. Get ready to elevate your projects with the latest user-defined material models and many other enhancements.  ▬ Learn more: https://lnkd.in/eG5Uw5Dw ▬ Download now: https://lnkd.in/gVVqgu5W #PLAXIS #GeotechnicalEngineering #Innovation

🏆 Celebrating customer success! 🏆 PT. Hutama Karya (Persero), Spark North East Link Tunnels D&C & WSP, and Dataforensics, LLC are finalists in the Subsurface Modelling and Analysis category for Bentley Systems' Year in Infrastructure Going Digital Awards. 🌎 Their cutting-edge projects have used technology to advance our understanding of the subsurface – with impressive results. Here’s a sneak peek at their projects: PT Hutama Karya (Persero), ‘Integrating Subsurface Model for Efficient Geotech. Data Management in Trans Sumatera’, Jakarta, Indonesia Spark and WSP, ‘North East Link Central Package’ Melbourne, Australia Dataforensics, ‘USACE Ground to Cloud – Enterprise Data Management Migration’, Washington, DC, USA ✈️ Next, they’ll travel to Vancouver on October 8-9 to present to a panel of judges at the prestigious Year in Infrastructure Going Digital Awards event. The winners will be announced live! 📣 Stay tuned: We’ll be sharing more project details and event info over the next few weeks. 📝 Learn more about the event and meet the finalists here: https://bit.ly/3X8So0X

🏗️ ❇️ Practical Example: Plastic zone size and tunnel closure for a 50m-deep tunnel in weak rock. This example demonstrates the practical application of PLAXIS for the calculation of the plastic zone extent and tunnel wall closure. It has been inspired by an article from Hoek (1998). The problem involves a 10 m span modified horseshoe-shaped tunnel driven through very poor-quality rock at a depth of 50 m. The rock mass is a graphitic phyllite with a uniaxial compressive strength of σci = 15 MPa. The rock mass is described as 'disintegrated', consisting of a poorly interlocked mixture of angular and rounded pieces, and 'poor' with slickensides and highly weathered surfaces corresponding to an approximate Geological Strength Index GSI = 25. The uniaxial compressive strength of the rock mass is estimated as σcm = 1 MPa (deduced from the equivalent cohesive strength ceq = 330 kPa and equivalent friction angle φeq = 24.9°). It is assumed that the rock mass properties and the ratio of the in-situ stresses remain constant. The horizontal stress is assumed to be 1.3 times the vertical stress. Learn more: https://lnkd.in/gRjYDuXm #PLAXIS #Learning

Last call! 📢 Don't miss out on our upcoming webinar! Register now: https://lnkd.in/gXkWft-h #PLAXIS #GeotechnicalEngineering

Have you heard? 👂 The Bentley Geotechnical Analysis Wiki now features a practical example section filled with engineering-oriented, detailed examples akin to our traditional manual tutorials. If you're a PLAXIS user, these examples are a must-see! https://lnkd.in/geJAs5gd Check out the available examples: ▬ Tunnel support analysis for a 250m-deep tunnel in weak rock ▬ Plastic zone size and tunnel closure for a 50m-deep tunnel in weak rock ▬ Initial stress definition with consideration of locked-in stress ▬ 3D analysis of a horse-shoe shaped tunnel with pipe forepoles #PLAXIS #Learning

Are you attending the European Conference on Soil Mechanics and Geotechnical Engineering, #ECSMGE? The Portuguese Geotechnical Society (SPG) is organising and hosting this major geotechnical event in Lisbon, Portugal, from August 26th to August 30th 2024. Don't miss the opportunity to meet our colleagues travelling to Lisbon or attend our short-course. Register now: https://lnkd.in/d5pBwdNN #OpenGround #Leapfrog #Central #PLAXIS #GeoStudio

AECOM engineers, University of Illinois Urbana-Champaign and UC Davis College of Engineering researchers latest paper delves into the role of permeability on undrained instability triggering during copper tailings dam static liquefaction. This insightful research, utilizing PLAXIS and NorSand, highlights the critical role of permeability in geotechnical stability. Alfonso Cerna-Díaz, Ph.D., P.E. from AECOM states, "The integration of NorSand into PLAXIS, coupled with Python scripting, allowed us to efficiently model over 90 stages of loading and dissipation, ensuring reliable results tested against a real-world case history."   🎥 Witness this pioneering work in a dynamic video, illustrating the stress path evolution in p-q space throughout the stages of loading and dissipation.   Join us in exploring the nuances of static liquefaction and the innovative methodologies used to advance the field of geotechnical engineering. ▬ Download the paper here: https://lnkd.in/eKKx9QNs   #GeotechnicalEngineering #AECOM #StaticLiquefaction #PLAXIS #NorSand #PythonScripting #EngineeringResearch #Innovation

Coffee Corner time!☕ Join us for a webinar on assessing offshore wind turbine responses with the PLAXIS Monopile Designer! 💨 ▬ Aug 13, 2024 10:00 AM CEST: https://lnkd.in/gUhFYeiJ ▬ Aug 13, 2024 4:00 PM CEST: https://lnkd.in/gk466iNe We'll explore the methodology for computing static responses, natural vibration frequencies, and vibration modes for the monopile-tower-nacelle (RNA) system. Don't miss this opportunity to delve into the critical parameters for the monopile, tower, and RNA system. #OffshoreWind #PLAXIS #Webinar