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


weight displacement in muskeg conditions

weight displacement in muskeg conditions

weight displacement in muskeg conditions

We have the job of lifting a pipeline facilities in deep muskeg conditions, the use of cranes is very limited, we have been using airbags to lift ,however the soils up to now have been dense enough to allow us to lift without pushing the skid decks that hold them into the soil. Unfortunately I foresee this as a problem in muskeg condition.
The pipeline is buried and will be dug out, the Valve to be lifted in above ground and it sits in below ground saddles, which need to lowered, this is the reason for lifting.
my question would be , would a fillcrete base for the skid piles be enough to hold the airbags,
Approx 100,000lbs and I have 6, 70 ton air bags to use for lifting,
If there is another solution I am all ears.

RE: weight displacement in muskeg conditions

Not to make light (so to speak) of the situation, but I know some muskeg can be pretty rough, and at some point in effect "sky hooks" might eventually be helpful for some phases of such operations? (fyi https://www.google.com/search?q=cargolifter+airshi... ).
I have actually seen 48" ductile iron pipes, and even larger and longer steel pipes for penstocks, installed over the years with cargo helicopters in inaccessible slopes and terrain. I will like you however await better answers - have a good weekend!

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!


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