Hi,
I am dealing with modelling of cross passage between two TBM tunnels. I have created the TBM tunnels by using tunnel designer and since my geometry requires lots of trimming and joining of surfaces and volumes I have detached the TBM elements from the tunnel designer. I have used volume element for the TBM tunnel lining and assigned properties of concrete.
Now my problem is I cant extract forces from the TBM lining. I have cut a section as well and tried to see the the forces and it is not happening. Can anybody guide me how to do that.
Thanks
Abhijith
Dear Abhijith,
The Structural forces in volume piles is not intended to be used in tunnel geometries as the one you describe. The complexity of the cross passage also does not qualify for using the dummy plate approach, so using plates might seem a good approximation.
Note that you could calculate the forces based on the stresses generated (integration), however, this is a cumbersome process that requires some post-processing work and it does require having some proper refinements to increase the accuracy of the results.