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

piling in peat

piling in peat

piling in peat


What are the issues of iron oxide reacting with soggy peat ground conditions whilst piling?



RE: piling in peat

Hi 2V,
Are you talking about corrosion of steel pipe or H-piles in peats?  If so, it's a concern, but in most cases not a huge one unless conditions in the soil are extreme.  Potential for corrosion increases with several factors such as pH and resistivity to name two.  The more electrically conductive the soil is, the greater the chance for corrosion, which makes sense; ions can move around in a highly conductive medium.  Strong acids or bases can also increase the chances.  I believe high sulfate and/or chloride concentrations will also contribute.

It would be a good idea to look around and see if it tends to be a problem in your area.  Normally, when there is a concern, most piling designs will call for thicker shells for a pipe or a stout H-pile section, (or another type of pile altogether).  Most of corrosion I've ever heard about was perhaps an 1/8" (reduction in steel pile thickness) over 50 years or more (for my area in Michigan, possibly not applicable to your area).  Although peat bogs will vary in chemical and electrical properties even in the same area.

Cathodic protection is another option to limit the corrosion of underground steel structures like piles, however these systems are expensive and usually tricky to set-up correctly unless very skilled individuals install them.

Remember to consider the length of time a facility will be in operation.  Unless we're talking about a monumental structure in ancient Rome, most life spans for "permanent" structures are maybe 75 years, maybe more maybe less.

I would contact an established geotechnical engineer in your area-one who's been around a while.  Some of them are sometimes around long enough to go through an entire design life of a structure if you're lucky!  In that case, they'll tell you first hand!  I'm sure they will have an opinion that considers "area specific" information for the soils in your area that I couldn't possibly know.

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


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
The Great Project Profitability Debate
A/E firms have a great opportunity to lead the world into the future, but the industry’s greatest asset—real-time data—is sitting wasted in clunky, archaic ERP platforms. Learn how real-time, fully interactive dashboards in a modern ERP allow you to unlock data that will shape the future of the world. 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