• Dynamic analysis-tunnel lining

    Sanaz Karimi
    Sanaz Karimi
    Hello, I am running a dynamic analysis model in Plaxis to find a vertical displacement of the pipeline in liquefiable soil, but it takes one day and is still running in 11.21 seconds. Is it normal for this kind of analysis in Plaxis? If so, anyone could…
    • 23 days ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • How can I overcome/rectify this void around the tunnel?

    Sanaz Karimi
    Sanaz Karimi
    Hello, I modeled a tunnel of 2.5 m in the soil layer. In the calculation result at the lining stage voids are created around the pipe. How can I remove these voids? what is the reason behind this phenomenon? Many thanks for your help.
    • 2 months ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Cable reinforcements in PLAXIS Tunnel Designer

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D 2023.1 Date created 08 March 2023 Date modified 08 March 2023 With the release of PLAXIS 2D 2023.1, the tunnel designer has been updated to include the Cable bolt element…
    • 7 months ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Discontinuities for the purpose of modelling contact of tunnel segments

    Jovan Saponjic
    Jovan Saponjic
    I am modelling a TBM-bored tunnel in Plaxis 2D, and in order to obtain a more percise stress field in the segmental lining in the zones of contact between segments, I have decided to model the tunnel lining as "soil" elements with the corresponding material…
    • 8 months ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • NATM Tunneling - Beta Method: Incomplete Staged construction method vs. Deconfinement method

    Stefanos Papavasileiou
    Stefanos Papavasileiou
    Application PLAXIS 2D Version PLAXIS 2D CONNECT Edition V22 and later Date created 20 January 2023 Date modified 20 January 2023 Original author Kalyani Singh Introduction In the NATM method, the tunnel…
    • 9 months ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Tunnel _ volume strain input

    yuhong wang
    yuhong wang
    Hi all, I was modelling the volume expansion (due to temperature change) by inputting the volume strain of material directly. But when I consider the tunnel, I cannot input the volume strain value to the lining ( plate material), so it shows the wrong…
    • 10 months ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Support capacity evaluation of a tunnel lining in PLAXIS 2D

    Stefanos Papavasileiou
    Stefanos Papavasileiou
    Application PLAXIS 2D Version PLAXIS 2D CONNECT Edition V22 Update 1 and later Original Author Richard Witasse - Application Engineer Date created 01 November 2022 Date modified 01 November 2022 The project…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • How to complete Tunnel Geometry ("extendtosymmetryaxis" and "symmetricclose" command).

    Muhammad Rayyan
    Muhammad Rayyan
    Dear Stefanos and Team, I am using Plaxis 2D V21. I am currently trying to re-do Tutorial 7 (Excav. of an NATM Tunnel) through Python remote scripting. I would like to perform the "extendtosymmetryaxis" and "symmetricclose" command through python…
    • Answered
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Regarding Contraction in HDD installation

    Ellen Huang
    Ellen Huang
    Dear Support Team/Plaxis We are using Plaxis 2D version 20.04. Got some questions for modelling the HDD installation using line contraction. In two scenarios, the volume loss will be 50% and 100% (full collapse), so we set Cref=volume loss=50% for…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Field of stresses in "non deep tunnels"

    Mateo Garcia
    Mateo Garcia
    Hi, I am a rock engineer getting started with Plaxis. As many rock engineering people I am more familiar with the Rocscience package but I am starting to see great potential on PLAXIS. In the Rocscience package there was a possiblity to model gravity…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Interface in Composite Tunnel Liner

    Francesc Candel
    Francesc Candel
    Hi all, We are facing to a inner reinforcement tunnel design in order to minimze tensions in existing plain concrete lining. So, we have a plaxis 2d model where existing linning is modeled as a soil volume (elastic model) and future reinforcement as…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Soil tunnel modelling

    Are Berstad
    Are Berstad
    Hi! I've encountered a problem trying to model a double liner approach with two soil elements as liners. It could be a problem with meshing, which would lead me to using the plate+soil element instead. In addition I'm modelling a permanent jet grouted…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • TUNNEL EARTH PRESSURES

    Jamal Hassan
    Jamal Hassan
    Dear plaxis users, When you want to analyse a TUNNEL in structural programs such as SAP2000, where the soil cannot be introduced directly to the software, If the tunnel model is created in Plaxis 2D, how can I obtain the earth pressures acting on…
    • over 2 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Forum
  • Deconfinement feature might generate wrong stress distribution for dry conditions

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Issue status Solved First Affected Version PLAXIS 2D CONNECT Edition V20 Update 4 Found in Version PLAXIS 2D CONNECT Edition V20 Update 4 PLAXIS 2D CONNECT Edition V21 Fixed and Released in Version…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Composite liner approach in PLAXIS 2D

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D CONNECT Edition Date created 10 December 2020 Date modified 10 December 2020 General Double lining is a kind of tunnel structure composed of an outer primary lining (segmental…
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Deconfinement method gives unexpected results in case of pore water pressure change in PLAXIS 2D

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Issue status Open First Affected Version PLAXIS 2D 2018.00 Found in Version PLAXIS 2D CONNECT Edition V20 Update 2 Fixed and Released in Version PLAXIS 2D CONNECT Edition V20 Update 4 Issue…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Concrete model

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D PLAXIS 3D Version PLAXIS 2D PLAXIS 3D Date created 09 October 2018 Date modified 09 October 2018 The Concrete model was initially developed as a user defined soil model (called Shotcrete model…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Response of a rock mass to circular excavation (non-uniform in-situ stress)

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D Date created 25 February 2016 Date modified 25 February 2016 In the video, we show how to set-up the model discussed in the validation report below. The validation concerns…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Seepage around a pressure tunnel

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D 2015 Date created 12 February 2016 Date modified 12 February 2016 This movie demonstrates how to set-up a model to predict the development of seepage around a pressure tunnel…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Circular tunnel driven in elastic cross anisotropic rocks

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D Date created 26 February 2016 Date modified 26 February 2016 This movie shows how to set-up the model used in the validation document linked below. The validation concerns…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Response of a rock mass to circular excavation (uniform in-situ stress)

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D Date created 25 February 2016 Date modified 25 February 2016 In the video we show how to set-up the model discussed in the validation report below. The validation concerns…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • How to model Rockbolts in the Tunnel Designer

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D Date created 25 February 2016 Date modified 25 February 2016 In this movie we explain how to define rockbolts in the Tunnel Designer, available since PLAXIS 2D 2016. Note…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • PLAXIS 2D Thermal

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Version PLAXIS 2D Date created 19 February 2015 Date modified 19 February 2015 In this movie we demonstrate the possibilities of the Plaxis 2D Thermal module. Tutorial lesson 16 Freeze pipes…
    • over 3 years ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • Incorrect data for centerline with an offset tunnel

    Micha van der Sloot
    Micha van der Sloot
    Application PLAXIS 2D Issue status Open First Affected Version PLAXIS 2D 2015.00 Found in Version PLAXIS 2D 2015.00 Fixed and Released in Version Issue # 373395 (SW-3760) Date created 17 April 2015 …
    • over 1 year ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
  • PLAXIS 2D Tutorial 05: Excavation of an NATM tunnel

    Felipe Fonseca
    Felipe Fonseca
    Application PLAXIS 2D Version PLAXIS 2D Date created 20 May 2017 Date modified 27 Feb 2023 This lesson illustrates the use of PLAXIS for the analysis of the construction of a NATM tunnel. The NATM is a technique…
    • 8 months ago
    • GeoStudio | PLAXIS
    • GeoStudio | PLAXIS Wiki
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