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!

*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.

Jobs

FHWA-IF-99-015 - GROUND ANCHORS AND ANCHORED SYSTEMS

FHWA-IF-99-015 - GROUND ANCHORS AND ANCHORED SYSTEMS

(OP)
Ref to thread255-282878: FHWA - Circular No4 Reese-Wang Eqns

I have created a spreadsheet to calculate the embedment depth of a bored pier in sandy soil.
I get same results as per Design example 1 for formulas B2 and B6, but different values for B4 and B5.
There is something not quite right in formula B5; the units are not right. It is made by 2 terms, the first "bγd" (m KN/m3 m), hence KN/m, and the second term is just "γd" (KN/m3 m), hence KN/m2.
And finally the intersecting wedges resistance (mine is higher than the one in the example). I calculated the full resistance to depth d with formula B2 (680 KN/m), than I calculated the reduced resistance to depth di with formula B4 (101 KN/m), then I deducted from 680 the full resistance to depth di (304 KN/m) and summed the 101 KN/m. result...477 KN/m (versus 4119 KN/m from the example).

Any thoughts?

Thanks
Davide

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close