Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Penetration Borings

Thread starter muuddfun
Start date Apr 8, 2010

Status: Not open for further replies.

Apr 8, 2010

muuddfun

Geotechnical

Do any of you have information on how to interprete some old caltrans penetration borings, done with a no. 2 Mckiernan-Terry air hammer at 115 psi? The logs show a record of penetration in seconds per foot. They terminate at 300 seconds per foot. Any way to convert this to SPT?

All I could find about the Mckiernan-Terry hammers was for pile driving hammers. Do any of you know about any others?