×
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

Slip Zone Around Steel Piles to Reduce Frost Heaving

Slip Zone Around Steel Piles to Reduce Frost Heaving

Slip Zone Around Steel Piles to Reduce Frost Heaving

(OP)
We are having issues with frost heaving driving steel piles out of the ground for a pipe rack. We are replacing most of the piles with screw piles which seem to perform better, but there are a few that are inaccessible and can't be replaced. Does anyone have any information on the concept of creating a "slip zone" around the steel piles to reduce the heaving? I don't have any information on how this is done, or the effectiveness of it. Someone just mentioned this to me as a possibility to explore.

Thanks.

RE: Slip Zone Around Steel Piles to Reduce Frost Heaving

Chapter 4 of this manual discusses some methods.
https://www.wbdg.org/ccb/ARMYCOE/COETM/ARCHIVES/tm...

A simple method commonly used with adfreeze (freezeback) piling is to wrap the portion of piles within the active layer (freeze/thaw zone) with 3 or so layers of polyethylene, tape securely.

RE: Slip Zone Around Steel Piles to Reduce Frost Heaving

(OP)
Is there a method to apply the tape to existing piles?

RE: Slip Zone Around Steel Piles to Reduce Frost Heaving

To create a "slip zone", you would have to physically remove soil around the pile to create space to apply some coating to the pile's surface.
If piles are truly inaccessible, methods to prevent frost jacking/heaving are limited.
Only thing that comes to mind is to place a shallow insulating layer to reduce frost penetration.

RE: Slip Zone Around Steel Piles to Reduce Frost Heaving

Have you considered a vacuum truck? You might be able to vacuum the material out and install a sleeve similar to what they use to insulate pipes when they are too close to grade.

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