I have a compaction grout project. The rule of thumb all the time has been to grout up to 10 ft below the surface.
My question is, isn't it possible to grout up to 5 feet below ground?.
I understand that there is a concern with ground heave. But still, i still think 5 ft below ground surface should be fine.
This is for an open field project. There is no structure, it is just a depression in a open field.
Of course, the idea is to first fill the depression and then proceed with grouting.
Please let me know your thoughts.