×
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

Retaining Wall / Bulkhead Anchor Location

Retaining Wall / Bulkhead Anchor Location

Retaining Wall / Bulkhead Anchor Location

(OP)
I have a question regarding the required anchor setback on general retaining walls or bulkheads.  Perhaps someone here has some insight.  I already know the following:

Lets assume an anchored sheet pile bulkhead.  The location of a bulkhead anchor must account for two sliding planes to ensure 100% efficiency.  The first (A1) is angled 45+phi/2 from the sheet pile toe and the second (A2) is angled at phi.  Full passive resistance on the anchor will be obtained if the anchor's passive failure plane does not intersect with A2.  Secondly, no additional load will be transferred to the bulkhead if the anchor is situated behind A2.

There seems to be two schools of thought for the second scenario and I cannot find a definitive answer on which is right.  Some references (Bowles) imply that the top of the anchor should be behind A2 for full efficiency while others (Arbed Sheet Pile Design Manual, Kranz(1940)) specifically state that the base of the anchor should be used instead.  

Does anybody have any relevant references to this question?  I apologize in advance if anything presented here is unclear.

Thanks.

RE: Retaining Wall / Bulkhead Anchor Location

I locate the deadman anchor so that the active failure plane of the wall (at 45 + phi/2 above horizontal) does not intersect the passive failure plane which extends up from the bottom of the deadman (at 45-phi/2 above horizontal).  If they do not intersect, I assume full strength for the deadman and no load on the wall.

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