×
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

Broken Underground Sewage Pipe

Broken Underground Sewage Pipe

Broken Underground Sewage Pipe

(OP)
At a wastewater treatment plant, a 70-year old 180ft long 12in dia. crock pipe, located nearly 40ft below ground and conveying wastewater from an underground tank (via a manhole) to a tunnel, was recently found to leak and need replacement.  There are several utility lines in the top 10ft of soil at this facility.  Any idea about the best way to design for this replacement would be appreciated.

RE: Broken Underground Sewage Pipe

Can the damaged line just be slip lined?

RE: Broken Underground Sewage Pipe

(OP)
Additional information:  There is noticeable surface subsidence at the location of leak.  A video recording of through the line shows the opening in the pipe is considerable.  Someone had suggested pipe-jacking for replacement.  What would this entail?  Would slip lining maintain the integrity of the line?

RE: Broken Underground Sewage Pipe

With slip lining the strength of the pipe is increased and if properly designed, there should be no further ground loss.  The slip lining is continuous from one end to the other.

There are several companies in the US that do this kind of work, not sure about other locations.

RE: Broken Underground Sewage Pipe

Jakin.

I just attended a seminar for pipe rehabilitation.  The company is able to line the entire pipe.  They can also fix individual holes with a grout patch.  If you are in the midwest you can check out their website http://www.visu-sewer.com/.  With the depth, and other obstructions this may be the cheapest fix.

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