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  • Tunnel advancement

    Dear Sirs, I want to model a tunnel constructed in the NATM with PLAXIS 3D. For example, the excavation for the bench should have twice the length of the excavation for the Top-heading, or the excavation of the heading should be like this: one meter…

  • Interface in Composite Tunnel Liner

    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…
  • Coffee Corner: Geotechnical Analysis - Efficient tunnel advancement for complex NATM tunnels in PLAXIS [April 12]

    Coffee Corner: Geotechnical Analysis - Efficient tunnel advancement for complex NATM tunnels in PLAXIS [April 12]

    Webinar Title Coffee Corner: Geotechnical Analysis - Efficient tunnel advancement for complex NATM tunnels in PLAXIS Presenter Micha van der Sloot, Senior Manager User Success - Geotechnical, Bentley Systems, Inc. Date Tuesday, April…

  • Soil tunnel modelling

    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…

  • Concrete Model for Plain Concrete Tunnel

    Hello, We are involved in an urban excavation design that could affect to old existing subway tunnels with a plain concrete linning. In order to evaluate maximum linning tensions due to excavation we have seen that using linear elastic model for plain…

  • Tunnel+

    Some additional modelling in the tunnel. It is for something that is not reacting to the track and where solid modelling it preferred to mesh component

  • Tunnel

    I often have question about modelling a tunnel. You know that you can use templates and circles, but the 3D component is not using the true circle but stroking. The number of segment is defined using variable CIVIL_CIRCLE_MESH_STROKE_NUMBER (default…

  • How to choose the suitable mining ventilation system?

    We have a new tunnelling project in Canada,would like to find a professional company help designing the ventilation system. Is there any suggestions?

  • TUNNEL EARTH PRESSURES

    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…

  • Tunnel sequencing using python

    How to set TBM tunnel sequencing steps using python? in other words, I want to retrieve the step object to assign tunnel seqence. for example: g_i.deactivate(g_i.TCS_1_volume_1_1, ?????)

  • Deconfinement feature might generate wrong stress distribution for dry conditions

    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…

  • Getting pore water pressure in drained clay Plastic calculation.

    As can be seen in the drawing, there is drained clay sandwiched between drained sand layers. When I am doing the plastic calculation, I am getting 0 excess pore water pressure in sand, but not in the drained clay layer soil. What can be the reason for…

  • Structural forces in volume: Plaxis 3D

    Hi, I am dealing with modelling of cross passage between two TBM tunnels. I have created the TBM tunnels by using tunnel designer and since my geometry requires lots of trimming and joining of surfaces and volumes I have detached the TBM elements from…

  • Deconfinement in Plaxis 3D?

    We have deconfinement option to relax the soil in plaxis 2D, similarly do we have any other option plaxis 3D. I have tried surface pressure inside tunnel and could not produce accurate results. Can anyone help me?

  • ORD 2020 Release 2 : Fichier .RCS-E57 et tunnel

    bonjour je reçois des fichiers RCS, j'ai compris que c’était des nuages de points brut que le sous traitant doit exporter en E57 pour que nous faisions un .POD. Peut on avec ORD faire une coupe et voir le tunnel sous le TN ?? donc il peut y avoir…

  • Importing from Microstation to PLAXIS: full Tunnel geometry

    Application PLAXIS 3D Version PLAXIS 3D CONNECT Edition V21 Date created 22 January 2021 Date modified 1 February 2021 We can now import Microstation CAD files. In this video, we show you how to take a Tunnel…

  • Composite liner approach in PLAXIS 2D

    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…

  • Tunnel beams/girders generated in the wrong direction

    Application PLAXIS 3D Issue status Solved First Affected Version PLAXIS 3D CONNECT Edition V20 Update 4 Found in Version PLAXIS 3D CONNECT Edition V20 Update 4 Fixed and Released in Version PLAXIS 3D CONNECT Edition V21…

  • Deconfinement method gives unexpected results in case of pore water pressure change in PLAXIS 2D

    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…

  • PLAXIS 3D Tunnel Designer

    Application PLAXIS 3D Version PLAXIS 3D Date created 09 April 2015 Date modified 09 April 2015 This movie shows how to define a tunnel, a trajectory and how to divide the trajectory in the to-be-excavated tunnel…

  • Concrete model

    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…

  • 4D grouting pressure model of a bored tunnel in 3D Tunnel

    Application PLAXIS 3D Version 3DTunnel Original Author F. J. M. Hoefsloot, A. Verweij Date created 15 November 2011 Date modified 24 October 2016 For some ten years TBM-techniques have been used to construct…

  • New building plans on the surface above the existing underground Willemspoortunnel in Rotterdam

    Application PLAXIS 2D PLAXIS 3D Version PLAXIS 2D PLAXIS 3D Original Author Ragavan Appiah Date created 06 October 2011 Date modified 24 October 2016 The development of new projects in many cities at present…

  • Create rock bolts accurately in PLAXIS 3D

    Application PLAXIS 3D Version PLAXIS 3D 2013 Date created 17 February 2016 Date modified 17 February 2016 Note: Since PLAXIS 3D 2018, the introduction of the reinforcements/rockbolts in the Tunnel Designer (i.e.,…

  • Create centerline for Structural Forces in Volumes

    Application PLAXIS 2D Version PLAXIS 2D Date created 17 April 2015 Date modified 17 April 2015 In order to view the Structural forces in volumes in Output, a centerline is required. A centerline can be created manually…
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