Trimble Business Center

I have the bottom of an MSE wall that I want to model for machine control. I created points for each elevation then created a linestring to join them. Trying to figure out the best way to create a surface so the steps are shown correctly.

Attached is the VCL file.

Thanks,

Pablo

I have modelled it how I would normally model a foundation on one of my sites, I had to move some vertices a couple of millimeters as some of your steps overlapped. I have made them one meter wide as I don't have any idea of the spec of the wall but that can be adjusted to whatever width you need to with no problems/

Matthew - Do you mind walking me a little more on what you did. This is a U-shaped wall and I want to grade in between both sides of it as shown below in red. And also how did you model the finished ground (I'm assuming that's what the higher elevation lines are).

Thanks for your help.

I'll throw together a little video this afternoon, sorry for the delay, working on UK time here

Sounds good. Thanks a lot for your help.

It's a long old process getting a long video on here. This is a little insight into how I would go about this.

Hopefully this is helpful in some way

I have yet to do one MSE wall in TBC.  I have in terramodel done sperate alingments on the MSE walls,  Top Wall,  Bottom Wall, Finsih grade  and also the Face of Wall.   This is a bit more work up front and it will make it easier when building the design to be able to pick a grade I want to use and run with it and not worry about offsets.  

Hi,

This Ben Granillo,on the walls I've done, I will run a line string on both edges of the footing reflecting the steps. At the steps I will run a break line across the footing at the bottom of the step and top. The top break line of the step and the bottom break line of the step are offset about a 0.10' from each other so I take away the overlap. (just a bit I do so it doesn't slow me down. use if you want). Try this and see if it helps.

Ben 

Thanks Ben.

Hi Ben,

I used to do that, but now I create a 2D linestring at the center of trench then edit it and use the vertical edit to add VPIs for the steps. I generally make the steps 2mm as this makes them almost vertical in Machine Control. After I have created the VPIs for the center line I offset it in both directions for 1/2 the width of the final trench. This automatically makes the software triangulate the top and bottom of the steps straight across the trench as they are VPI points which become automatic triangulation points in surface generation. This cuts out the need to edit the lines along the side of the trench to the correct level and also cuts out the need for breaklines at the top and bottom of the steps.

I found that doing this generally increased my efficiency. If you use the VPI method to elevate your lines youi set the distance along the line for your level, so there are never any overlaps, and it is eaasy to correct if you type in the wrong level at the top/bottom of the step.

It also means that there is a center of trench line for the machine driver to select as an alignment within machine control for more accuracy.