Hi VAD,
In response to your question, the clay/stiff till (N<12) layer is underlain by a 4.2m thick firm glacial clay layer (14<N<50). Although the logs call it out as "sandy" the tests don't seem to support it. Also, there is no evidence that the sand seams if any are sufficiently...
Hello!
Thanks again. The clay encountered in this region, is glacial in origin, the sand, silt and clay components vary between 20%-40%, which is characteristic of glacial clayey tills. The LL, PL and PI are about 30-35, 15-20 and 15-25 respectiviely.
Hope this helps.
BK
Thank you for your replies. I am currently designing wick drain system to increase the time for primary settlement under an 11.5m high embankment. The soil below is about 7m of clay with a cv (vertical) of 5E-04 cm2/sec. It does not seem realistic to use this value for wick drain design...
Hi!
Is there a reference to use for determining a correlation between horizontal and vertical permeability coefficients for different soils?
Thanks,
BK