The initial image was not oriented correctly.https://files.engineering.com/getfile.aspx?folder=bd44a5f3-3501-4e6f-a2ed-277f74b0ea11&file=78825506-ED8D-429E-9281-31DC7A5610DF.jpeg
I would like to build an underground greenhouse. Will the excavation in the attached diagram cave in?https://files.engineering.com/getfile.aspx?folder=b1fc48a5-02ef-47bd-b0d1-08a4991be1b7&file=2AE0B172-AC6F-4FA7-B306-D8C2CC5C18D4.jpeg