×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Foundation Pier Design

Foundation Pier Design

Foundation Pier Design

(OP)
We are currently designing a pier foundation for a certain building.  We have a Pier End Beam Value of 4000 psf and a skin friction of 1000 psf.  The soil report recommends a minimum depth of 8 feet for the piers.  But there is water at around 8 feet deep.  The soil report did not say it has included the water table in its analysis.  My questions are: would the friction and end beam value change? what would be the factor of change?

Thank you very much!

RE: Foundation Pier Design

Can you call the geotechnical engineer on the job and ask him?  Sounds like that would be a question for him/her.

RE: Foundation Pier Design

You could also try posting your question in the "Soil Mechanics" forum of eng-tips.

RE: Foundation Pier Design

I would definitely call the geotechnical engineer - author of the report.  They have made specific recommendations to you and if you do not follow them, then you are "on your own" as far as future liability is concerned.  

They can certainly assist in clarifying any provision of their report and amend it accordingly.  In fact, it is always a good idea to allow the geotechnical engineer to participate fully in the design through good communication, and follow up review of your foundation design.  Also - on-site observations are a good idea for your geotech as well.

RE: Foundation Pier Design

Where is the site?  Soil type / strength / conditions?



Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora.  See FAQ158-922 for recommendations regarding the question, "How Do You Evaluate Fill Settlement Beneath Structures?"

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources