×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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

Do we need final facing for temporary soil nail wall?

Do we need final facing for temporary soil nail wall?

Do we need final facing for temporary soil nail wall?

(OP)
Hi, I have designed a temporary soil nail wall based on the FHWA manual. It includes both initial shotcrete face and final cast in place face.
The contractor has asked if we can remove the final facing, since it is only for few months and after it will be berried in soil. is it doable? is there any guidelines regarding Temporarysoil nail walls same as FHWA manual?

RE: Do we need final facing for temporary soil nail wall?

Temporary soil nail walls always have just the initial shotcrete face. All you have to do is ensure you have enough reinforcement to handle the anticipated load. Not sure you need a manual to tell you that.

RE: Do we need final facing for temporary soil nail wall?

As MTNClimber said, no permanent facing needed for a temporary shotcrete all. Just install the thin (about 4 inches thick and usually ugly) shotcrete facing and lock off the nails against the shotcrete. For nails installed at about a 5' x 5' spacing, the reinforcement is usually 6 x 6 - W2.9 x W2.9 welded wire mesh. I prefer to install the soil nails before installing the shotcrete.

www.PeirceEngineering.com

RE: Do we need final facing for temporary soil nail wall?

(OP)
Thanks @MTNClimber and @PEinc

RE: Do we need final facing for temporary soil nail wall?

SamMary, remember that soil nail walls usually are not appropriate in cohesionless sands and where there is ground water. NJ has plenty of both. Soil nailing becomes more expensive if you have to case the nail drill holes through loose, saturated sand. Do you have sufficient stand-up time for the individual, 5' excavation lifts?

www.PeirceEngineering.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! Already a Member? Login



News


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