×
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

Radial influence from drilled pier (caisson)

Radial influence from drilled pier (caisson)

Radial influence from drilled pier (caisson)

(OP)
I have a project where there are existing utility vaults and basements within a distance 1 to 2 times the diameter of proposed caissons. How do I calculate the surcharge on the existing features from the proposed caissons? Any help would be highly appreciated.

RE: Radial influence from drilled pier (caisson)

(OP)
I should add that the caissons are laterally loaded. Thanks

RE: Radial influence from drilled pier (caisson)

Here's one approach.  Analyze the drilled shaft with a program that gives soil reactions, such as LPILE or COM624, as though the vaults didn't exist.  Then re-analyze, cranking up the stiffness of the soil in the vicinity of the vault.  Take your worst case soil reactions and apply them as a vertical line load to the side of your vault.  You'll need to judge the width of wall that contributes in resisting the additional line load.

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