×
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

Soft Soil Around UG Pipe in Parking Lot

Soft Soil Around UG Pipe in Parking Lot

Soft Soil Around UG Pipe in Parking Lot

(OP)
My customer wants to use a geogrid or geotextile to help with a soft wet silty clay around a underground gas pipe over which his parking lot is being built.  There is 200mm of this soil over which 200mm of granular fill with a 50mm asphalt pavement will be placed.  I know the calculations for embankments or for roads but not for this situation in which the parking lot extends for meters on either side of the soft soil.  Can anybody tell me whether there are calculations published out there for this situation or a good rule of thumb for strength and embedment lengths required?

RE: Soft Soil Around UG Pipe in Parking Lot

layfieldman

How long has the pipe/soft clay been there?  Is the clay consolidating and taking the gas pipe with it?  Are you trying to bridge the soft clay or prevent overstressing the gas pipe, or both?
Since the pipe doesn't seem to be very deep, why not remove & replace the soft clay with granular roadbed material, at least above the gas pipe?  A cost comparison with the geotextile/geogrid option seems worthwhile.

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


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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