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…

Dear sir/madam, I have a question about the critical time step and the number of substeps for a dynamic analysis model. We know that the critical time step depends on minimum element size and shear wave velocity of the soils inside the model. I have…

Hey folks! I've read a bit in (+) Geogrids as a soil reinforcement? Modelling in PLAXIS? - GeoStudio | PLAXIS Forum - GeoStudio | PLAXIS - Bentley Communities regarding the geogrid. But I still couldn't manage to have a reasonable result. I have my…

Hey folks! I'm thinking to use geogrid to model geosynthetic in my Plaxis and am a bit unsure how to create geogrid material model. I'm looking at Miragrid GX 110/30 with manufacturing info as below. I'd like to include the long term effect of the material…

Hi all, I am trying to recreate the stress-strain curves from the HSS formulation to have a better understanding about the calibration process. I am using the following formulation as displayed in the "Material Models" manual: Nevertheless, this…

Hi everyone. I try to do a model where have a pile (as embedded beam row). Part of the pile is anchored in depth, and superior part works as wall. In this part have 2 anchor rows as node-to-node anchor, but the connection dont works for a intermediate…

Hello there, I am performing a free-field site response analysis. Plaxis's Manual suggests to set a " Compliant base " for the bottom boundary and " Free-field " for the lateral boundaries. Now, in my specific case i have an outcropping ground motion…

Dear sir/madam, I have two questions about rayleigh damping parameters. According to the manual and the other references, we know that f1=Vs/4H (fundamental frequency of the soil deposit) and f2 equals to the nearest odd integer (greater one) of the…

Hi, I'm trying to select a point to retrieve output data from a plate. I've tried different alternatives, but always keep selecting the node in the adjacent soil: If I do it manually via the output interface the node I'm trying to select exist.…

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

Hey guys! I'm wondering about the connection between a N2N anchor and a plate, if it is automatically created as rigid. If you see the red circle part, that the connection between my strut and sheet pile wall and they will be in reality welded together…

Dear sir/madam, I have two questions about a dynamic analysis model consists of sandy layers with (c=0). I indicated the cohesion values of the soil because i have high vertical displacements in my analysis (in the order of 20-30cm). There isn't groundwater…

Hey! I've always been a bit confused about how to set the equivalent length of FE and N2N anchors. What I understand by far is that a FE anchor usually used when it's symmetrical excavation and the equivalent length is half of the excavation length…

Dear sir/madam, I'm working on dynamic analyses for a study. In this study, i will compare the accelerations along the depth of soil and structural forces on the piles with different: -Earthquake characteristics (PGA) -Soil parameters (Shear vave…

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…

newest_plot = g_o.Phases[-1] newest_plot.ResultType = g_o.ResultTypes.Plate.Utot newest_plot.PlotType = 'shadings' image_wrapper = newest_plot.export(2048, 1200) For an example I have a plot like this, Is it possible to make it zoom in or out to make…

I need to verify the displacements for the factor of safety obtained in safety analysis (defined when ΣMsf is more or less constant, as showed in the plaxis tutorial manual). However, the manual makes it clear that the maximum displacements obtained are…

When performing safety analysis on Plaxis the following behavior is happening: The SRF reaches a peak and then drop. After that, there is a continuous raising until the line stabilize. This indicates an error in the model or is a possible outcome…

Hi all, I am trying to simulate the curling of pavement subjected to temperature differentials at the top and bottom. In the contact surface of the concrete and base course, I defined interfaces and put Rint in the concrete as 0.01 to allow higher seepage…

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…

Hey, I'm following the script in (+) Output scripting example: get maximum bending moment - GeoStudio | PLAXIS Wiki - GeoStudio | PLAXIS - Bentley Communities to get maximum total displacement of the plate. The script I use is here x_left=32 IDsSLS…

Hi guys, I'm trying to export Mstage and Msf plots from Plx using Python. The one way I've found on forum is step=[] Msf=[] plt.figure() for phase in MsfPhases:       step_x=[]       Msf_x=[]       for c,s in enumerate(phase.Steps[::10…

Hi guys, I'm trying to create geometry in python and it's not exactly standard rectangles or anything. So when I add points to the lines, the point may not be accurately sitting on the line (not snap to the line) if I use python to create points with…

Dear sir/madam, I have a question about the maximum frequency value (fmax) in the critical mesh size formula. There are already questions here and other platforms, but i couldn't be sure because i have seen different usages of this parameter. Should…

Hello, I hope you are doing well. I am modelling a steady state groundwater condition for a simple slope and I am having an error 101, in which the soil body seems to collapse. My intention is to use the pore pressures from this analysis in a subsequent…