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…
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.
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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
…
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…