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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…

Hi all, The retaining system contains H piles and the steel plate lagging and the lagging arrangement can be 1. behind the front flange 2. behind the end flange as shown below. My questions are 1. Does soil arching occur in those 2 cases are…

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 ?

Hello, I would like to know what are the main parameters that affect the magnitude of the incrementally added sumMstage at each step, and if it's possible to control it. In another way, is it possible to obtain the same plot of Mstage vs IuI but with…

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…

Some designers are discussing about the input parameter of hte maximum swelling stress for Swell_ID=2 Anagnostou. We needs some help to know what is the most correct way: 1) Some designers follows Anagnostou theory and input both parameters: maximum…

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…

Some designers are discussing about the input parameter of hte maximum swelling stress for Swell_ID=2 Anagnostou. We needs some help to know what is the most correct way: 1) Some designers follows Anagnostou theory and input both parameters: maximum…

Hello. I ask you to look at my computation for seismic 9 points. I think I'm doing something wrong. Because the results of velocities and acceleration are too small for seismic 9 points.

Am trying to model the effect of thermal loading on the backfill behind integral abutment by using Plaxis 2D. I modelled the concrete bridge deck as Linear Plate element and provide a prescribed displacement near the top of the abutment. The applied displacement…

Hi, how can I use the Python API to model tunnels? I'm already going crazy! If I use the process of Tunnel Designer to code and model, the code will terminate when assigning material to the tunnel plate unit, and the error is' The plate unit does not…

Hi, I'm scheduling triaxial tests on silty sand (SM) and while I understand that consolidated drained (CD) test is required to obtain the soil hardening parameters, the test may take a long time due to the fine content in the soil sample. Therefore…