Dear colleagues,

I am facing a problem in the definition of an initial stress field in a UDEC model using the "block insitu stress-topography"-command. I am able to generate the initial stress field based on the definition of the stress ratios (keywords: kox and koz). However, when i am trying to add an overburden stress (which is an additional keyword to be used with the "block insitu stress-topography"-command, the command is not executed with the error message that there are missing parameters. From the information of the HTML help i understand that the overburden is simply defined by a single float value, which is the actual oberburden stress.

Here is the problematic line of code:

block insitu stress-topography kox 0.33 koz 0.33 overburden -1e6

Can anyone tell me how i can solve this problem to further account for the overburden stress within this command? I know that i can also initialize the stresses in a different way, but i want to specifically achieve this by using the above mentioned command.

Kind regards