Array Surface in a Polycurve direction

RE: Array Surface in a Polycurve direction

Francesc Candel — Thu, 10 Mar 2022 09:37:50 GMT

Yes, we have defined an specific material only for tunnel interface joints.

RE: Array Surface in a Polycurve direction

Berk Demir — Tue, 08 Mar 2022 16:48:39 GMT

Out of curiosity: How do you plan to make concrete joints for the tunnel modelled with volume elements? I can only imagine interface with custom material defined.

RE: Array Surface in a Polycurve direction

Stefanos Papavasileiou — Tue, 08 Mar 2022 15:23:26 GMT

I would also choose to use CAD software for this as it is easier to create the whole geometry there and then import it in PLAXIS.

If you transfer the orthogonal surfaces (acting on the normal to the trajectory, if you can say that) in PLAXIS then I would make them larger than the tunnel so that the intersection is ensured when triggered.

I agree that overall having a 3D trajectory path via the tunnel designer will add value to the tool and it deserves to be considered in future implementations. I am sure that more would benefit from this feature, too.

RE: Array Surface in a Polycurve direction

Francesc Candel — Tue, 08 Mar 2022 09:50:18 GMT

Thanks Stefanos,

Perfect.In this situation, how do you recommend to create "slices" along the tunnel? I guess that this only might be done with ortogonal planes also created with CAD file and intersected with extruded section. I suggest that this could be a good improvement for tunnel designer tool.

Thanks!

RE: Array Surface in a Polycurve direction

Stefanos Papavasileiou — Mon, 07 Mar 2022 16:07:52 GMT

Dear Francesc,

I confirm that with the Tunnel Designer you can only handle trajectories on a plane. Therefore the alternative is to import the trajectory as a polycurve in Structures mode (3D path is possible), create the cross-section surface and extrude this along this path (trajectory).

RE: Array Surface in a Polycurve direction

Francesc Candel — Mon, 07 Mar 2022 12:47:39 GMT

Hi Stefanos,

Could you please confirm if it is possible to create a tunnel (via tunnel designer) with a non planar polycurve trajectory (non constant slope)? We think that is only possible importing a dxf file.

Thanks

RE: Array Surface in a Polycurve direction

Francesc Candel — Mon, 28 Feb 2022 13:33:31 GMT

Hi Stefanos,

We are trying to do the same through tunnel designer but we have one question. Regarding tunnel trajectory reference manual explains that imported polycurves (*.dxf, *.step,...) should be positioned only in x-y plane. Then, how can we do it if trajectory have elevation variations. Thanks

RE: Array Surface in a Polycurve direction

Stefanos Papavasileiou — Fri, 25 Feb 2022 12:40:03 GMT

Hello Francesc,

I gave it a look and I would say that in this specific case the only way to have something similar would be if the tunnel was defined via the Tunnel Designer.

As I understand you have imported this geometry which would make the process of computing the normal of each surface quite tricky in PLAXIS, which is why I think you can continue doing that part on the CAD software.

RE: Array Surface in a Polycurve direction

Francesc Candel — Fri, 25 Feb 2022 09:34:29 GMT

We can do it through CAD software but I am wondering if there is an option from plaxis directly.

RE: Array Surface in a Polycurve direction

Francesc Candel — Fri, 25 Feb 2022 09:33:05 GMT

Hello Stefanos,

I want to create cutting planes for the following tunnel every 10m in order to create concrete joints. These planes should be ortogonal to tunnel.

RE: Array Surface in a Polycurve direction

Stefanos Papavasileiou — Fri, 25 Feb 2022 09:23:45 GMT

Hello Francesc,

It really depends on what you want to achieve, as PLAXIS offers various options here.

Can you send me a visual representation of what you mean?