I have a buried system at 250 deg F with a 6" header and 3/4" branches
going up and out of the soil. I'm wondering how to model the 3/4" branches
as far as coding them as buried pipe with the same depth of the soil or possibly with an average depth. I'm wondering if the program has the capacity of analyzing vertical buried piping. In reality if the header pipe is moving horizontally with a large thermal movement the 3/4" branches will be resisted by a very large earth resistance, much more than the depth of the pipe. In fact they may all fail based on that type of analysis.

Anyone have any experience with this type of analysis?