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100,103 paper downloads in 2023 for the ISSMGE International Journal of Geoengineering Case Histories!
International Journal of Geoengineering Case Histories IJGCH
21 Feb 2024
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ISSMGE Board Announces Open Access Requirement for all its Publications
ISSMGE ISSMGE
05 Feb 2024
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PGS Workshop on Geotechnics of Dams and G.A. Leonards Lecture by Prof. Jonathan Bray - Call for Presentations
Philippe L Bourdeau Seminar
04 Jan 2024
On behalf of the organizing committee, I am pleased to announce that the 2024 Purdue Geotechnical Society Workshop and the 20th G.A. Leonards Lecture, an in-person event, will take place on Friday, Ap...
Read MoreSeeking PhD Supervisors for Research Proposal on Climate-Resilient Geotechnical Infrastructure
Julien Babarinde Koudoro news
20 Feb 2024
Seeking PhD Supervisors for Research Proposal on Climate-Resilient Geotechnical Infrastructure Dear GeoWorld Community, I am Julien Babarindé KOUDORO, an experienced civil engineer specializing...
Read MoreCone Penetration Test (CPT)
Geoengineer.org education
30 Jan 2024
Brand new education article on the CPT! This introduction to the CPT is part of the book "P. K. Robertson, K. Cabal, Guide To Cone Penetration Testing...
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Treat yourself to 12 hours of "Learning how to learn"
ISSMGE TC306
05 Feb 2024
Learning how to learn is a Coursera Massive Open Online Course (MOOC) and one of the most popular MOOCs of all times. As of Feb. 5, 2024, 3,704,657 students have enrolled. The cou...
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Potential $37 billion rare earth mineral deposit found in Wyoming mine
Geoengineer.org news
19 Dec 2023
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Different Types of Weathering
Akram Jaffar Jan Erosion
19 Feb 2024
Weathering is the process by which rocks and minerals on the Earth's surface break down into smaller particles over time. There are two main types of weathering: mechanical (physical) weathering a...
Read More12th International Conference on Scour and Erosion (ICSE 12) - First Announcement
ISSMGE TC213
26 Jan 2024
The First Announcement for the 12th International Conference on Scour and Erosion (ICSE-12) is now available
Read More3-module virtual short course series on Geotechnical Earthquake Engineering
Dimitrios Zekkos news
08 Dec 2023
Six #UCBerkeley #Faculty (Jonathan Bray, Nicholas Sitar, Adda Athanasopoulos-Zekkos, Robert Kayen, Norman Abrahamson and yours truly) are teaching a 3-module virtual #short #course series on #Geotechn...
Read MoreAnnouncing the Publication of the 2024 USA & Canada Special Edition Geotechnical Business Directory
We have just published a special 2024 edition of the annual Geotechnical Business Directory series with the support of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). The special edition highlights members in the USA and Canada, showcasing...
Read MoreGeoWorld Mobile App Launched for Android & iOS
GeoWorld is delighted to introduce the release of its new mobile app, which is now accessible on both Android and iOS devices. This latest development allows GeoWorld members to interact with the network of 35,500+ geotechnical engineers and 1,100+ companies and organizations...
Read MoreBIM workflow for new German high-speed railway line
Seequent, The Bentley Subsurface Company PLAXIS/Leapfrog
23 Feb 2024
Prof. Quick und Kollegen was commissioned by Deutsche Bahn Netz AG to determine an optimal rail route option and explore the geotechnical feasibility of tunnels while protecting the...
Read MorePLAXIS 2024.1 New release is out!
Seequent, The Bentley Subsurface Company PLAXIS
23 Feb 2024
With PLAXIS 2024.1 users benefit from enhancements for designing and reinforcing underground excavations, improvement in the connected geotechnical workflow and modal analysis for offshore f...
Read MoreBest Project Specialty Construction: Martin Marietta Texas Quarry Highwall Stabilization
GeoStabilization International resource
23 Feb 2024
Photo courtesy GeoStabilization International This innovative project, by GeoStabilization International, required stabilizing two areas of a quarry that were experiencing frequent rockfal...
Read MoreRocscience, Backed by TA, Expands Global Presence with DIANA FEA Acquisition
Rocscience resource
23 Feb 2024
Rocscience Inc., a leading geotechnical software solutions provider, in collaboration with global private equity firm TA Associates (TA), proudly announces the acquisition of DIANA...
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ISSMGE Interactive Technical Talk Episode 12: Physical Modelling in Geomechanics (TC104)
ISSMGE TC104
12 Dec 2023
The twelfth episode of International Interactive Technical Talk has just been launched and is supported by TC194. Prof. Ioannis Anastasopoulos, Prof. Cristina Tsuha and Dr. Federico...
Read MoreFHWA initiatives on Sustainability
Anand Jagadeesh Puppala news
21 Jan 2024
I want to post the following for FHWA (USA)'s initiatives on Sustainability and there are reports that may be available to download if you are working in this field - https://www.fhwa.dot.gov/pav...
Read More4th webinar in the monthly webinar series "The future of Infrastructure today!" on Friday 1st of March
UC Berkeley Center for Smart Infrastructure news
21 Feb 2024
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Slide with recent major landslides events
Dimitrios Zekkos news
08 Jan 2024
Giving a presentation tomorrow at Northwestern University, and thanks to Geoengineer.org was able to quickly put together the slide below with major landslides events that occurred very recently. Than...
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Lecture “Current and future challenges for computational geomechanics" Prof. Jidong Zhao
ISSMGE TC103
23 Jan 2024
On January 22, the TC103 supporting committee of JGS held the TC103 seminar in Kyoto. The Lecture entitled Current and future challenges for computational geomechanics" was given by...
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In Memoriam: James K. Mitchell, Sc.D, P.E., NAE, NAS, Dist.M.ASCE
ISSMGE ISSMGE
29 Dec 2023
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SPTfoundation: Deterministic shallow foundation design using SPT data
DCOdes news
21 Feb 2024
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ISSMGE Interactive Technical Talk Episode 13: Laboratory Stress Strain Strength Testing of Geomaterials (TC101)
ISSMGE TC101
12 Jan 2024
The thirteenth episode of International Interactive Technical Talk has just been launched and is supported by TC101. Prof. David Airey, Prof. Irene Rocchi, Dr. David Reid and Prof. A...
Read MorePGS Workshop on Geotechnics of Dams
Philippe L Bourdeau news
04 Jan 2024
PGS Workshop on Geotechnics of Dams and the 20th G.A. Leonards Lecture by Prof. Jonathan D. Bray, April 12, 2024...
Read MoreVideo shows the moment soil nail wall collapses in Coquitlam, Canada
Geoengineer.org news
02 Dec 2023
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Use of PLAXIS interfaces
Q&A
Someone
Post Your Answer
- 10 Jan 2024
Ok, this one might be a bit obvious but I have trouble understanding it.
What is the exact purpose of PLAXIS interfaces and when do we have to use them?
Also, what is the exact difference between a positive and a negative interface?
Post Your Answer
Answers
Micha Van der Sloot
- 12 Jan 2024
Hi,
Interfaces in PLAXIS can take account of proper soil-structure interaction, where relative displacements (including sliding) can occur between the structure and the adjacent soil.
More details here: https://communities.bentley.com/products/geotech-analysis/w/wiki/45944/modelling-soil-structure-interaction-interfaces
The naming in PLAXIS for these interfaces is mostly done to recognize which one is which. It is based on the (internal) direction of the line associated with the interface. It does not have a mechanical consequence if an interface is called Positive or Negative: the behaviour is controlled by the interaction, pressure equilibrium and relative movements of soil and structure causing e.g. shear stresses and -strains, and allowable shear stress in the interface.
Kind regards
Micha van der Sloot
GeoStudio Remote Getting Started | APAC
Seequent, The Bentley Subsurface Company GeoStudio
24 Jan 2024
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Public Workshop: Slope Stability, Groundwater Flow and Dynamic Analysis with GeoStudio and PLAXIS (Denver, USA)
Seequent, The Bentley Subsurface Company GeoStudio/PLAXIS
24 Jan 2024
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GeoStudio Core Remote Fundamentals
Seequent, The Bentley Subsurface Company GeoStudio
24 Jan 2024
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Public Workshop: Slope Stability, Groundwater Flow and Dynamic Analysis with GeoStudio and PLAXIS (Sydney, Australia)
Seequent, The Bentley Subsurface Company GeoStudio/PLAXIS
24 Jan 2024
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