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Dynamic analysis-tunnel lining
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
New building plans on the surface above the existing underground Willemspoortunnel in Rotterdam
Micha van der Sloot
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…
over 3 years ago
GeoStudio | PLAXIS
GeoStudio | PLAXIS Wiki
Create centerline for Structural Forces in Volumes
Micha van der Sloot
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…
over 3 years ago
GeoStudio | PLAXIS
GeoStudio | PLAXIS Wiki
Is it possible to apply a distributed load on tunnel lining in PLAXIS 2D?
Micha van der Sloot
Application PLAXIS 2D Version PLAXIS 2D Date created 19 March 2013 Date modified 19 March 2013 Since PLAXIS 2D AE, it is possible to directly apply a distributed load on the tunnel lining using the available feature…
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
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
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
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
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
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
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