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never heard of them. What state/country are you in?

No. Try estimating the flow rate (relatively), and then try determining whether it is steady (the true groundwater table has been intercepted) or just intermitent. if intermittent and small flow, use 4-6 in. subdrain, if sustained and large flow, use 8 - 12 in. But eventually the groundwater...

Calcium Chloride in liquid form, truck applied. Scott Paper Co. used it in Maine at least until the early 1990's with much success. You would probably need to top the gravel with sand first in order for the CaCl to hold onto something, but Scott had no problems whatsoever running lots of...

depending on how much you overecavated, I would not replace the overexcavated soil. Use the extra base material. 5" of base sounds like enough. A 5" concrete slab with both fiber and steel reinforcement sounds like it will just about handle the wheel loads of your 747. You are...

I don't understand the concern? Is it to complete all 110 ft. of the embankment in one season or is it because there are no pore pressure monitoring devices included in the design, or somehting else you are concerned with? If the in-situ soil is non-plastic silt, then I would expect elastic...