Methods vary from one area to another. I don't know what local materials you have available. But, I might be able to help with the math. Your 160x12 driveway is 1920 square feet, figuring raising it a total of 1 foot, that is 1920 cubic feet, divided by 27 cu ft to a cu yard, that's about 72 yards of material, or about 4 dump truck loads.
In my case, In Florida, I raised the base about 12" with fill just to get it above the potential water (we had massive rain last summer, and much of it flooded a couple of inches). Now, I need to stabilize the fill. In most areas, that's gravel. In Florida, we use "shell rock". It's crushed limestone, coquina and shells dredged from pits about 90' deep, where there was once sediment from the ocean. It packs down almost like concrete. I'll put a 6" layer of that on top of my fill.
The geo textile cloth is great, but not necessary here -- the shell rock won't penetrate the sand the way gravel would, and I don't mind having grass growing up through --- in fact, the roots help to stabilize.
None of this may work in Louisiana, but I thought you'd like to hear another approach, maybe get some ideas.