Wow!
Lots of advice fellas. Most of it on the mark too. Sadly I can't re-route the track. Our legal corridor down to the bitumen road is only about 60m wide so our track has to go that way. Down at the bottom of that corridor the soil is very clay rich which becomes supersaturated after a regular heavy rainfalls.
Previously I have dug drains either side of that section of track and built up the path over layers of geotextiles. Worked great for about a year until somebody graded that track too deep and ripped it all up.
For context, the worst section (until the land rises out of the clay) is probably only 100m, but that's plenty to bog in! I would want a track of 3-4m width. During really wet conditions (like now) we wouldn't expect heavy loads to come onto the property. My own 4wd Loader and Tractor probably come in at about 3.5 tonne each, and of course the LandRover Toyota and other road legal vehicles usually less than that.
Thanks for all the suggestions. I actually like the army 'bog roll' concept. I saw similar materials used in old WW1 images from Flanders, where the situation with mud and bogging was awful.
The closest commercially available product I have found is this. True Grid ( although there are various brands available).
truegridpaver.com.au
Anybody know anything about this stuff? Does it work?
I would dig down a few inches, put in a layer of road base, then a layer of geo textile, then this stuff filled with gravel. Or something like that.
Like I say, I've never built a stabilised track before.
Cheers
Alan