×
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

Tie-In CL Elevation Verifications

Tie-In CL Elevation Verifications

Tie-In CL Elevation Verifications

(OP)
I'm on a facilities project with several above grade tie ins coming up. Each tie in is new to old with a flanged spool piece getting dropped in during the outage. In the weeks leading up to the outage, the Operations group is requesting recurring checks on centerline elevations to ensure they don't run into any issues lining up the spools during the time sensitive shutdown. Is there a quick and dirty way to perform these checks using a level, tape, T square, string, center finder, etc. rather than setting up the level and rod at every spot and shooting elevations? This will occur when the surveyor is on site but I'm just looking for an old fashioned welder's method to have another paper trail of QA/QC documentation.

(The basis for this is historically poor soil conditions at said tie in location)

Thanks, appreciate any feedback.

RE: Tie-In CL Elevation Verifications

No. With a history of settlement of poor soils, any documentation would presumably be old enough to not include any new settlements. They can start and stop, or continue with changes of moisture in the soil. I've seen some settlement of gas plants that approached 1" per month from time to time. Get the level instruments, or a laser scanner and get them to work or do it just before construction.

RE: Tie-In CL Elevation Verifications

(OP)
Thank you BigInch. I agree, it makes sense to simply get your take-offs done right before the tie-in occurs, but the client is requesting a log to see what kind of settlement/floating patterns are going on. Not a bad set of information to have I suppose for future design purposes.

RE: Tie-In CL Elevation Verifications

You can use a laser level from a datum next to one side of the tie-in across to a mark on the other tie-in location.

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