Self weight of piles
Self weight of piles
(OP)
I have been doing some research into piles and I read you can usually ignore the self weight of the pile except in the following situations:
The weight of the pile itself is generally small in relation to the applied load (i.e. Qt >> W) and is usually ignored.
May need to check this assumption for:
(i) friction piles in soft clay,
(ii) offshore piling where a considerable proportion of the pile extends above the sea-bed.
Can someone tell me why in these above cases that it cannot be ignored?
Many thanks
Darragh
The weight of the pile itself is generally small in relation to the applied load (i.e. Qt >> W) and is usually ignored.
May need to check this assumption for:
(i) friction piles in soft clay,
(ii) offshore piling where a considerable proportion of the pile extends above the sea-bed.
Can someone tell me why in these above cases that it cannot be ignored?
Many thanks
Darragh





RE: Self weight of piles
RE: Self weight of piles
In behalf of darragh91, I thank you for the explanation. It makes sense to me. :)
dgillette is right. I have read something like that, too.
Wow, dgillette, you should be a teacher or something. (This is a compliment)
But what about the friction piles in soft clay? I’m afraid you weren’t able to answer that.. :(
RE: Self weight of piles
RE: Self weight of piles
RE: Self weight of piles
RE: Self weight of piles
RE: Self weight of piles
RE: Self weight of piles
Consider that soil properties can be calculated with modest accuracy... and this does not take into account what happens to in situ soils during pile installation. Safety factors are also based on estimates and historically successful applications. The bottom line is that self weight of the pile is nothing more than "noise" when compared to the other factors and that due to the long history the assumption to ignore pile self weight has been "grandfathered".
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