sample pipes in SPT?
sample pipes in SPT?
(OP)
Hi All,
We have an ongoing field exploration and the driller is driving samples with non-a-sized-rod. Maybe N-rod or such? I can certainly get those details in the days to come. My question is whether there are unique terms we'd have to use to normalize the SPT N-values ala N1-(60)?
D6066 is the ASTM standard and they seem silent on the matter.
Thoughts?
f-d
We have an ongoing field exploration and the driller is driving samples with non-a-sized-rod. Maybe N-rod or such? I can certainly get those details in the days to come. My question is whether there are unique terms we'd have to use to normalize the SPT N-values ala N1-(60)?
D6066 is the ASTM standard and they seem silent on the matter.
Thoughts?
f-d
ípapß gordo ainÆt no madre flaca!





RE: sample pipes in SPT?
Mike Lambert
RE: sample pipes in SPT?
We are seeing some interesting data; however. Low N-value intervals in an old marine deposit (Coastal Plain, Virginia) that we haven't seen in other borings. Wondering if the heavier weight of the larger rods are forcing the sampler to, "Fail" the soil strength without any blows. Seeing WOR/WOH data and just noodling over the, "Why?"
Thanks for your considerations!
f-d
ípapß gordo ainÆt no madre flaca!
RE: sample pipes in SPT?
RE: sample pipes in SPT?
f-d
ípapß gordo ainÆt no madre flaca!
RE: sample pipes in SPT?
RE: sample pipes in SPT?
RE: sample pipes in SPT?
We did the calculations and for below water application, there is less than 100# difference between 150 ft of A-pipe and 150 ft of N-pipe. I feel better now.
f-d
ípapß gordo ainÆt no madre flaca!