Platform posts options for moist clay soil

[jona]

My biggest issue is that im running out of options due to soil issues regarding what type of foundation to use.


I can do screw poles,but this is gonna be rather expensive so im looking for a alternatieve, but the soggy (clay) soil is an issue.


The fear i have is when the yurt is starting to sag i have no realistic option to lift it to level and the option to break down everything to tackle the problem is not appealing to say the least.


So my qn is what are the options that can be used knowing i have to deal with the saggy clay soi.