×
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

Load Test

Load Test

Load Test

(OP)
Dear Geotechnical Engineer,

We have done bored piles (socketed in hard rcok),

Number of piles are 50 (for Buildings)

We have not done any test pile. is it acceptable?

If so, Do i need to perform test on working pile to all the piles?

What kind of test it more appropriate?

RE: Load Test

We'd have a test pile program that'd be outside of the production piles. We may (likely) also perform dynamic pile testing on production piles. It just saves money to do dynamic testing as we use LRFD for our structural design.

Now your question is one of need. So, no as far as I'm concerned you don't need to do load testing on rock socketed piles. I'n not your audience though. So, who cares what I think you need? You may have somebody that says it's needed though.

Is this limestone? Are there voids below the socket? Where is the job? Are there (U.S.) federal dollars on the project? Sometimes the logistics determine the answer. . .

f-d

ípapß gordo ainÆt no madre flaca!

RE: Load Test

Answer: It depends. For instance if your loads are light and there is a significant safety factor within the piles themselves and your estimate of pile end bearing, probably no test. However,if you are at the upper edge of pile ultimate compressive strength within them, a test will show to the owner that they have a safe project.

RE: Load Test

If the rock is really hard, that is, rock mass unconfined compressive strenght is greater than concrete, if the rock mass is homogenoeus, if the bottomhole is clean, if there are no fillings or cavities, as already FD pointed out, then, I believe most people would consider that redundant.

However, +1 on FD's post, some regulations require load tests on piles no matter what. And, +1 on OG's latests post, you would really give evidence that, even with much larger loadings than design allows, your foundations are 99.999999% reliable. In other words, safety factor would be huge.

www.mccoy.it

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