×
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

Landfill Development Upkeep

Landfill Development Upkeep

Landfill Development Upkeep

(OP)
I'm looking for useful proven techniques to use on a landfill development project.  I'm interested in techniques to help extend the life of the site improvement features (such as sidewalks, utility pipes, pavements, etc.) in the face of the constant settling that occurs.

Some ideas that come to mind are light weight concrete, flexible couplings.....  Any additional techniques?

Anything pointing me to a website or informative article would be appreciated.
 

RE: Landfill Development Upkeep

provide plenty of slope and extra capacity for your drainage features such as channels and pipes.  Make sure the cap layer is thicker than the minimum necessary or covered with another thick protective layer.  I'm not sure what good lightweight concrete will do.  It certainly will do little to reduce settlement.  Concrete, in general is not a good material to use on a landfill.  If used, make sure it is heavily reinforced.

RE: Landfill Development Upkeep

(OP)
Ok, well to be more specific we are looking to fix problems on an already developed site.  These issues are mainly due to the site improvements settling away from the building (building is on piles).   

RE: Landfill Development Upkeep

What kind of bldg did they put on a landfill?  How old, how deep, what type of landfill, what utilities?  What kind of traffic in and out of the bldg?

RE: Landfill Development Upkeep

And, how much settlement over how long?  Got curves?

RE: Landfill Development Upkeep

(OP)
Commercial retail store....that should answer a few of your follow ups.  3-4" of visual settlement at locations such as staircase to concrete sidewalk. No curves.

I'm helping put together some ideas that we may use, so I don't know all your answers.

 

RE: Landfill Development Upkeep

predicting settlement on landfills is difficult and risky at best. Past performance is not always indicative of future.  Your best bet would be to put everything on the piles.  Otherwise, expect settlement and lots of movement and don't use concrete.  If somebody has any proven methods, I would also be interested.

RE: Landfill Development Upkeep

if you were getting ready to develop the site, i'd suggest that you align your performance expectations with the materials you're dealing with and the amount of money thrown at the problem. since it's already built, i'd say plan to continously make repairs for the long run. if you want to throw a lot of money at the problem, you might check with a foundation repair company (www.atlaspiers.com for example). i'm not sure how much they will be able to help depending on the landfill composition.

prior to building the thing, even putting it on piles may be tough depending on what's in the landfill and how deep it is. maybe preloading would help will put a dent in your pocket book and schedule and is no sure thing (did i mention that most everything in geotechnical engineering is not a sure thing? but there are different measurements of how close you can come to that sure thing). it might be more cost effective in the long run to turn it in to green space for a nice park (to make everyone feel like their saving mother earth--feels good doesn't it?) and use the money you saved to develop the site next door.

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