×
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

Factors of Safety for Retaining Wall Design

Factors of Safety for Retaining Wall Design

Factors of Safety for Retaining Wall Design

(OP)
Typically when we receive friction values and passive pressures from the geotechnical engineer they will either specify whether the values are ultimate or have a FS of 1.5.  Assuming the values have the factor of safety in it, when you are designing the footing for sliding would you increase the values to ultimate and then design the footing so your FS is 1.5 or keep them as they are and have the force = resistance (still have a FS of 1.5 b/c the values given are factored down) or keep the values as is and design the footing so the FS is 1.5 on the output... Hope that makes sense! Thanks

RE: Factors of Safety for Retaining Wall Design

For many typical retaining walls, you'd ignore passive (unless its on the shear key) and even then you need to be careful because the retaining wall may not be able to tolerate the movement necessary to generate full passive resistance.  

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