×
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

ground improvement techniques

ground improvement techniques

ground improvement techniques

(OP)
Hi every one
i am doing a research about several techniques used to improve the bearing capacity of the soil
i found a lot of techniques used but what i didn't found the effect of using for example stone column on the bearing capacity of soil
can any body send me please a guide how we use this techniques and how will approve our soil.

REGARDS

RE: ground improvement techniques

Stone columns basically act as "piles" contained in a 3D block of soil and are used to generally reinforce a relatively large plot plan areaa, whereas concrete, driven, or bored piles are commonly used to support only the foundation immediately under a structure. Stone columns are placed across the bearing areas of a plot plan at somewhat close spacing intervals, then the structure's foundations are constructed on top, more or less exactly as you would on firm soil, considering the soil to have been improved in general bearing capacity. Besides being less expensive than driven or cast in place piles, stone columns also have the advantage of providing a water exit path, similar to a French drain in reverse, for releasing pore pressure in the event of earthquakes. Preventing water pressure build up to fluidizing levels keeps the soil from liquifying.

I used a stone column placement technique to improve the site for a pump station along the Red Sea 10 years ago. First time that the major Oil & Gas company ever used them. I think I may still have some of the reference material I used to convince the owner that they should use this method. I'll have a look for that when I get home.

Independent events are seldomly independent.

RE: ground improvement techniques

I consider ground improvement techniques to fall into two major categories....soil improvement and direct load bearing. Piles are direct load bearing as BigInch noted. Stone columns, TerraProbes and similar are hybrids of both techniques, but both lean toward soil improvement. Dynamic compaction, compaction grouting, chemical grouting and replacement techniques are all soil improvement methods.

Depending on the conditions you need to improve, sometimes more than one technique is appropriate. Bearing capacity change is only one consideration that must be made in deciding the appropriateness of any of these techniques or methods.

RE: ground improvement techniques

(OP)
thank you Ron and BigInch for you special effort and your helpful information

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