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.

Students Click Here

Soil load on suspended pipe in weak soil

Soil load on suspended pipe in weak soil

Soil load on suspended pipe in weak soil

For an existing 50 year old 6" diameter cast iron drain pipe suspended at 5 foot centres from a structural slab above, how should the force on the hangers due to the soil on top of the pipe be calculated? The soil above the pipe is fill underlain by sandy silt till of 12 blows per foot. The soil below the pipe is also sandy silt till of 12 blows per foot, but vastly improves at several feet below the pipe to 60 blows per foot. I am estimating because the nearest borehole (done in 1965) was 50 feet away from the location I am currently interested in. The situation of suspending a pipe below a structural basement floor (the floor is supported on drilled piers down to good soil) is fairly common, so there must be an accepted way of calculating the hanger load, but so far I have not found it. Perhaps there are tables for different soil conditions that give the hanger load. Any geotechnicalengineers who can help me?

RE: Soil load on suspended pipe in weak soil

This is a duplicate post, no?

RE: Soil load on suspended pipe in weak soil


I think in this case it is acceptable, as after not getting agreement from structural engineers, he is trying to obtain advice from a different audience.

RE: Soil load on suspended pipe in weak soil

I can see where one might think that, but generally double posting is frowned upon.

Would not a request to review the other thread (link) be more efficient? It also tends to consolidate all opinions into a more acceptable result, not to mention increase value of the Eng Tips database when referenced in the future, as well as reduce search time.

There are 3 separate threads for this same topic,
This thread
This one thread678-415908: Pipe hangers suspending pipe in soil
And another one thread507-415524: LOAD ON BURIED PIPE HUNG FROM STRUCTURAL SLAB

ajk1 please red flag (for deletion) all but the one thread that you want to retain.

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


Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
The Great Project Profitability Debate
A/E firms have a great opportunity to lead the world into the future, but the industry’s greatest asset—real-time data—is sitting wasted in clunky, archaic ERP platforms. Learn how real-time, fully interactive dashboards in a modern ERP allow you to unlock data that will shape the future of the world. 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