Hi Plaxis Forum I have a model of a shield tunnel in plaxis3d. The model is run to an Mstage=0,8 for the excavation of the tunnel (Phase 1); in the following phase, a concrete lining is activated and the model run to Mstage=1 (Phase 2). My question…

I'd really appreciate any guidance that can be provided by the community on the results that I have obtained below. I'm modelling the effects of an extreme precipitation event corresponding with a 1-100year event. The soil I'm modelling is boulder clay…

Hello Everyone, I calculated the bearing capacity by two method 1. by applying a prescribed displacement. The bearing capacity is 242 kPa, which is consistent with the analytical solution. 2. by applying a prescribed linear load on a rigid body…

I am doing a NATM Tunnel Analysis in Plaxis 3D, but when everything is finished and the calculations are given, it shows a problem in phase 01 like this. (Soil body seems to collapse. Please inspect Output results. [Error code: 101] ) What is the reason…

Hi, I has an uneven soil topography in Plaxis 3d. How do I proceed when excavating? How do I assign more than 1 material set to 1 soil volume to be extracted? Thanks in advance for any help!

Hi All I am designing piled-raft foundations. we have modelled the raft as a volume element, and piles as embedded beam elements with dummy plat at the bottom level of the raft to connect the Raft (element) to the piles (beam elements). My questions…

What are custom interface materials usually used for? Can it be used to simulate pile-slurry interaction?

I want to establish a circular retaining structure with a buried depth of 1.5m, so in phase 1, I deactivated the soil with a diameter of 10m and activated the circular retaining structure. I can understand the uplift of the soil inside the enclosure structure…

Hello, I am encountering a critical issue while using the coupling tool in PLAXIS 3D to connect the bridge (designed in STAAD.Pro CONNECT Edition - Version 21.00.02.43) with the soil (modeled in PLAXIS 3D CONNECT Edition V22 – Version 22.01.00.452)…

Dear Sir How we can model the bed slope of a pipeline in plaxis 3D ?

Dear Sir How to put internal pressure inside a pipe. If we are going with that tunnel one then two circular vertical surfaces are created at the two ends of pipes which looks like pipe is closed. So how to remove those to circular vertical surfaces…

Site Response Analysis PLAXIS 2D - 3D We have carried out a Site Response Analysis in PLAXIS 2D, adopting the Hardening Soil with Small Strain Stiffness model, and compared results with an equivalent-linear analysis using DEEPSOIL. We calibrated the…

Hi every one , i need help how i model rigid pavement or asphalt layers with cracks or how i put damaged material in plaxis 3d

Hello, gentlemen, how are you? Gentlemen, I had a question about plaxis 3D. I had a 10 second accelerogram. I can't get it every second graphics from the program. Can you help me? When I go to the graphics, a 10 second graphic appears. Who…

How can we rename custom water level in PLaxis 3D?

Hi all, Can anyone tell how to draw the water table for this following cases using points? Thanks.

Dear Community, I am working on the dseign of monopiles under cyclic load. The most important thing for that to cater is strength and stiffness degradation. In the link below I attached there is a discussion regarding constitutive model i.e. UDCAM…

I am working on a project that requires the application of earthquakes on the pile raft foundation. When I entered the earthquake on the basis of a surface-prescribed displacement represented by acceleration, the results showed a high displacement of…

Hi all, 01. What is the purpose of converting input parameters to equivalent properties in Plaxis 3D and how it goings to influence in the result? 02. Please explain about the axial force calculation based on the following page in reference manual…

Dear Ladies and Gentlemen! I have tried to evaluate the structural forces in a tunnel with the help of the automated tool from plaxis (Structural Forces in Volume Plate), This works pretty good for the large areas of the tunnel, but there are still…

Hello Everyone. I am working on a design of monopiles under cyclic loading condition. I am using UDCAM-S model. It is clearly mentioned that this model can be used in offshore structures that experience storm loadings. I am aware that using this…

Hello， If in phase 1, there are two layers of soil in the model, but in phase 2, I need to replace the material of the upper soil with concrete, and at the same time, at this stage, I do not want this layer of concrete to cause any pressure on the lower…

Hello Everyone, I am working on Plaxis 3D to model a Combined pile raft system. I want to model pile integrity test, for which i need to give an impact on the raft using a stack hammer. So, how to model this impact load on the raft in Plaxis which is…

Generally speaking, after the tail of the shield machine is completely passed, there will be continuous consolidation settlement on the surface, that is, the settlement value at the same point will gradually increase. However, in the case tutorial, I…

Hi Everyone When we analysis in Plaxis2d we see the results of model moment is kNm/m. we understand that the results are unit meter. Finally we multiply the results excavation step length in tunnel. When we analyse same model in plaxis 3d, we see…