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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…

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， 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…

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…

Dear engineers In plaxis3D, 1. Regarding the tunnel surface contraction, I did not find a specific calculation formula in the official case. If I know the diameter of the cutter head of the shield machine is a, the diameter of the tail of the shield…

In plaixs2d, the release of stress can be set when the tunnel is excavated. How to realize it in plaxis3D ? Thank you.

Hi， The clipped object Surface_6_1 has multiple primitive surfaces, but its local coordinates are defined differently: Surface_6 How can I solve this problem, and why does this result in a rather strange calculation

Hi, The interaction between the structure and the soil can be selected to be related to the nearby soil layer or user-defined.When I use a custom interface element, if I extract the earth pressure value on the interface element at this time, whether…

Hi, How should I simulate the mud on the outside of the sinking wells to help sink? I know the Kn, Ks, C and φ of mud.If I establish an interface alone, no matter what constitutive model I use, I need to input E, but the mud does not have the so-called…

Hi, The main difference between the circular precast segmental sinking wells and the shield tunnel is that the segment of the wells will move downward and the segment of the lining will stay at a certain place of the tunnel. Therefore, I have a problem…

Hi， The main difference between the circular precast segmental sinking wells and the shield tunnel is that the segment of the wells will move downward and the segment of the lining will stay at a certain place of the tunnel. Therefore, I have a problem…

If the plate element is used to simulate the existing shield tunnel, the actual inner diameter of the tunnel is 5.9 and the outer diameter is 6.6. Should the radius of the plate element be set to 5.9 + 0.35 ?

Dear all At present, in a paper, I see that the author uses the solid element to model the tunnel lining, and seems to simulate the segment by adding the interface between the segment and the segment to divide a ring segment into several blocks. At…

Dear all, When a circular lining is modeled using a solid element, whether the bending moment and axial force of the lining can only be obtained by establishing a virtual plate. Can you add a function to extract the bending moment of the solid element…

Hello, I need to use the Plaxis script to get the result but I have this error (No module plxscripting) in the script! I did below steps: 1- Activated remote scripting server 2- Started SciTE editor 3- Included boilerplate below: from plxscripting. easy…