×
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

Standard for depth UG pipe.

Standard for depth UG pipe.

Standard for depth UG pipe.

(OP)
I would to know standard for depth UG pipe.

RE: Standard for depth UG pipe.

There is a not a "standard" depth.  It depends on a bunch of factors including the type of ground, what traffic may be expected above the pipe, whether you have to provide protection against freezing, the requirements of applicable design codes, etc.

If you could provide a few more details on the specific application, it would be helpful to answering your question.

RE: Standard for depth UG pipe.

(OP)
rneill (Mechanical)
Thanks for your answer.

RE: Standard for depth UG pipe.

For example, if its a regulated gas, CO2 or petroleum pipeline in the US, you will find the minimum depths in the CFRs 49 Part 192, 194 and ANSI B31.4 and B31.8

**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/

RE: Standard for depth UG pipe.

As BigInch mentioned, the codes will give minimum depths, but depending on the location, service, etc a risk assessment may dictate additional cover.  For example, I am working on a high pressure gas pipeline that because of the factors involved, it has been decided based on a risk assessment to have 2m cover rather than a more traditional 1m.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
 

RE: Standard for depth UG pipe.

(OP)
Thanks sirs for all answer.

RE: Standard for depth UG pipe.

If you're running water and sewer, depth is dependant on geographic location and the depth of the frost line and any existing lines that you may cross (depth of existing lines also applies to HC lines).  

RE: Standard for depth UG pipe.

Suggest you get the relevant AWWA standard if this is a water pipe application. Australian standard AS 2566 is also a very good document. refer www.saiglobal.com.au.

RE: Standard for depth UG pipe.

for gas gathering lines, I like frost depth as the minimum.

RE: Standard for depth UG pipe.

That's OK in Oklahoma.  In south Texas, Florida etc. that's zero.  In ND, that's 6ft and too deep.  

Gas gathering lines and heavy oil lines are often pretty hot and can heat the soil.  But it pays to remember that hydrates can form at temperatures above 32F.

**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/

RE: Standard for depth UG pipe.

thats why I like gathering line under 300 psig, no hydrates.  Some guys are proposing 1100 psi gathering lines in ND, I hope they enjoy themselves.

I've operated gas lines in ND since 1977....... Little Knife......

RE: Standard for depth UG pipe.

I readily forgot how much fun it was firing up line heaters at 4 AM ,-)

**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/

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