Convert TIN surfaces to surfaces

[k-horiYJ27A]

Hello everyone, I am looking for a way to convert a corridor surface (TIN surface) to a surface!

I am currently looking for a way to convert a corridor surface (TIN surface) to a surface.
I have tested several ways to do it but all of them failed.

1.TIN surface => mesh => convert to points => delete duplicate points (python) => create surface from a collection of points [failed].

2. TIN surface => convert to triangles => convert to surface in Patch => merge into one surface [Failure].

Is there any great solution?

[A.C3D]

Hi, have you found a solution? Thanks.