Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by Gregoir

  1. Gregoir

    Determining critical gradient

    Thanks for the responses. GeoPaveTraffic - Agreed about no lab testing normally being performed, however for this scenario we are potentially dealing with a higher consequence structure and are aiming to have all gradients at or below 0.3. I was just wondering if there was lab testing to...
  2. Gregoir

    Determining critical gradient

    Hello, I am working on a project where we are looking to construct a dam with rockfill shell over normally consolidated silty clay material. Preliminary seepage modeling indicates locations have hydraulic gradients up to 0.4-0.45, however we were looking to have all values below 0.3. Is...
  3. Gregoir

    Undrained shear strength from vane data versus cone data

    Thanks for the replies. BigH - The site was located in the Northwest Territories in Canada. There are a number of other sites within the area that have had cone/vane info done (gradation wise, similar materials)and it did not show this drastic difference between the CPT/Vane. It had higher...
  4. Gregoir

    Undrained shear strength from vane data versus cone data

    I was reviewing some data from a recent site investigation program and noticed that the calculated undrained shear strength for our lakebed sediment is giving us values 10-20x the readings of our vane data from the same unit. We have completed 15 holes and have found the same results at various...

Part and Inventory Search