×
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

Mat foundation pile spring constants

Mat foundation pile spring constants

Mat foundation pile spring constants

(OP)
I am using several Mat Foundation analysis and design software packages (e.g. PCA-Mat). The software requires the user to input the spring constant for the piles (subgrade reaction to the pile), in my case a pile embedded in a 50 ft layer of stiff clay (good material) with skin friction only. I am ignoring axial compression of the steel H-pile. The only text I found on this subject was by the author TENG, who only showed a simple table with friction values in psf. ......Do you know of a good reference describing how to determine a value for a Pile Spring Constant (say, kips/ft), Skin Friction only in Stiff Clay? 40 tn pile. Sincerely,

RE: Mat foundation pile spring constants

Assume that an inch of movement is failure, thus constant < 80 kips/inch.

RE: Mat foundation pile spring constants

I'd suggest that you obtain M.J. Tomlinson's book on Pile Design and Construction.  It is quite good and, if I remember correctly, it will have what you want (Viewpoint Press).

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