Accurate SPT counts with upward seepage gradients
Accurate SPT counts with upward seepage gradients
(OP)
Does anyone have any experience measuring consistency or density of sands (SPT "N" value) during drilling where upward seepage gradients and drilling is causing disturbance at the base of the drill hole. I guess the best you can do is use wash boring techniques and keep a head of water in the casing at all times. Any other suggestions?





RE: Accurate SPT counts with upward seepage gradients
RE: Accurate SPT counts with upward seepage gradients
Danny McCook
RE: Accurate SPT counts with upward seepage gradients