The GrantEd Group’s Post

This is the second part of the course. It is on land acquisition sources and ghosting, VSPs, and DFOS. If we are going to talk about vibrators we can also talk about using them for VSPs or DFOS. Some people may find ghosting difficult to understand but it creates frequency notches in your data. Again, I would strongly recommend that you use this as a reference and it allows you to have talks with experts in seismic survey design, acquisition, etc. The other day I posted something about if you want to make changes in your career to gain information through going to talks, and conventions, talking to experts, and taking courses. By me putting this out here does not mean I am an expert on this but wanted to put it out there so people can learn. This can be a tool to facilitate communication and ask questions. Purvi Kaspale did the graphics to bring this presentation alive and hope you enjoy it.

Hind Hammada: Why does the ACSE code require scaling dynamic forces for seismic design, and what is the specific scaling factor? Almost all dynamic analysis results are less than of static ones (such as ELF). So the values like Base Shear tend to be smaller in dynamic analysis than ELF results. In ASCE7 you scale up to 100% ELF so you get little bump if things go your way. I agree in principle, though, that the choice to go RSA/NLA is usually driven more by having identified the need to capture complex dynamic behavior than by a desire to save on construction costs. ASCE 7-22 12.9.1.4 #RekanDaho

First of all, we have to know that we have two different scaling; the scaling of forces and the scaling of drifts, so the MRSA forces used to design the elements may be differ from forces used to check drift (as I said; may be) The scaling of forces starts from initial scaling ( gI/R) to take the effect of importance factor and response modification factor , then we have to do scaling up 100% of ELF (scaling down is not permitted) because the computed fundamental period may be the result of an overly flexible (incorrect) analytical model (In other words; flexible building may results in very low base shear). Scaling of Drifts Displacements from the modal response spectrum are only scaled to the ELF base shear where Vt is less than CsW and Cs is determined based on Equation (12.8-7). For all other situations, the displacements need not be scaled, because the use of an overly flexible model will result in conservative estimates of displacement that need not be further scaled. So finally we have; ELF (Forces) for strength design ELF (Forces) for drift check MRSA (Forces) for strength design MRSA (Forces) for drift check

🚀 Exciting news! Yesterday, we launched COPIT as a beta for our first external customers, and geotechnical engineers at Norconsult and Løvlien Georåd are already putting it to the test! In the coming weeks, COPIT will be available to all our existing customers. So, what is COPIT? 🤔 It’s NGI - Norwegian Geotechnical Institute’s game-changing CPTU interpretation program that connects directly with Field Manager. Say goodbye to manual exports and imports—COPIT gives you instant access to the CPTU and lab data you need, all in one place! With a variety of interpretation methods for both clay and sand, COPIT lets you decide which models work best for each layer. Flexibility and precision, all at your fingertips! Curious to learn more or eager to try it out? Get in touch with us today! #FMxmascalendar #fieldmanager #geotechnicalengineering #geotechnics Julien Hericher, Truls Martens, Cecilie Authén, Tellef Kydland, Jon-Michael Josefsen and Magnus Rømoen 💚

The biggest benefit of having a data management system like #FieldManager is that incredible #engineers like Julien Hericher can use their creativity to build #products on top of that platform that move our disciplines forward 💯 .

The third issue of the new ISSMGE Bulletin is out! 👉 Read the latest developments, technical advancements, and member society activities from across the global geotechnical community! https://lnkd.in/dK3nFM_Y

NEW ISSUE The October issue of Ground Engineering Magazine celebrates the British Geotechnical Association's (BGA's) 75th anniversary, with features exploring the association's developments over the last 25 years. The results of the 2024 GE100 survey are also presented in this issue, including lists of the top geotechnical firms in the UK. On top of this, the issue includes reports on a foundation solution that was developed for a Brighton basement in chalk, and work to monitor the settlement of an earthwork embankment on a flood scheme in Wales, as well as an interview with the new British Drilling Association (BDA) chair Mark G. E. Toye. In addition, it includes an Engineering Insight Q&A with GEM Foundation risk analyst Marco Baiguera, and the latest news and opinion. Read the new issue here: https://lnkd.in/eEy3TfkR #BGA #anniversary #special #groundengineering #geotechnical #october #GE100 #topfirms #topcompanies #results #basement #brighton #chalk #observationalmethod #drilling #BDA #interviews #features #news #views

The 30th Symposium of VGS is kicking off today, we're at booth number 18 showcasing our latest inclinometer technology! This year's Symposium focused on “Dams, Dikes and Levees“. Be sure to stop by Booth 18 to see what's ahead for the Ougan team in 2024! Don't miss this opportunity to explore the future of slope monitoring and measurement. Witness firsthand how our inclinometers redefine accuracy and efficiency in geotechnical applications. #inclinometer #tiltmeters #datamanagement #monitoring #groundinvestigation #groundengineering #assetmonitoring #datalogging #instrumentation #horizontaldisplacement #digitalinclinometer #inclinometersensor #landslidemonitoring #geotechnicalinstruments #inclinometermonitoring #VGS

Make sure to look out for our article in the October issue of Ground Engineering Magazine on page 46 where we discuss the past, present and future of geotechnical software. Are you attending GE Smart Geotechnics 2024 in October? Great, we'll see you there! You'll also be able to pick up this issue of the magazine at the event. #GeotechnicalEngineering #Article #GroundEngineering #SmartGeotechnics2024

The TAC Young Member’s Committee is excited to announce the next session in our educational series for our members led by speaker Ali Fallah Yeznabad, GHD Consultant "Probabilistic Seismic Hazard Analysis and Performance-based Analysis for Design and Analysis of Geo-structural Systems: Case Study of Sloping Grounds in Greater Vancouver, BC." In this presentation on Tuesday, July 9, 2024, at 3 pm (EST) / 12 pm (PST), an example of embankments and sloping grounds in Greater Vancouver, based on the local tectonic of BC are considered where the criterion of acceptable performance is usually specified by tolerable displacements of the soil body. PSHA and local seismicity and their effects are elaborated, and the difference between a probabilistic solution and a traditional pseud-probabilistic method is also shown. Based on realistic and more accurate results of PSHA-based PBD, this kind of analysis is recommended for future seismic evaluations in the area of geo-structural systems. Learn more about the presentation and the speaker at: https://buff.ly/40sL5AX Focused on introductory topics, the webinar series will strive to teach basic tunnelling themes not often taught in school but beneficial to those working in the industry. If you’re a student, just starting your career, or someone who likes to continually learn, then you’ll be sure to pick up something new. #TAC #YoungMembers #Tunnelling #CanadianTunneling #geo-structural #seismichazardanalysis