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


Bearing Pressure at Toe of Gravity Dam

Bearing Pressure at Toe of Gravity Dam

Bearing Pressure at Toe of Gravity Dam

I am updating a calculation where the bearing pressure at the toe of a gravity dam is calculated in the usual way, depending on whether the resultant is in the middle third. Uplift is initially assumed to be a straight line from heel to toe and adjusted by iteration to full headwater pressure if a crack occurs at the heel. All of this makes total sense; however, the engineer who prepared the calculations (no longer with company) adds tailwater pressure to the calculated pressure at the toe. For example pressure at the toe per unit width with R in middle third is calculated as R/BASE LENGTH)(1+6e/BASE LENGTH) + tailwater pressure.

Does anyone agree that it is correct to add the tailwater pressure? Why? Is it a pore pressure thing?

RE: Bearing Pressure at Toe of Gravity Dam

if there is tailwater, than you should analyze it. tailwater will increase your uplift
suggest looking at USACE EM-1110-2-2502 which addresses the methodology for spillways, floodwalls and dams

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! Already a Member? Login


White Paper - Considerations for choosing a 3D printing technology
The adoption of 3D printing into major companies’ product development life cycles is a testament to the technology’s incredible benefits to consumers, designers, engineers and manufacturers. While traditional production methods have limitations in manufacturability, 3D printing provides unparalleled design freedom due to the additive method of building parts layer by layer. Download Now

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