Pile - Raft Load Sharing Ratio

Question

Pile - Raft Load Sharing Ratio

bdbd (Geotechnical)

(OP)

12 Feb 16 12:48

I am conducting some research on piled raft load sharing ratio between piles and rafts. Do you have any idea if there is an easy way to get the loads carried by piles and loads carried by soil???

I am using embedded pile to model the piles with hardening soil.

ATSE (Structural) · Answer 1 · 2016-02-12 15:55:24

H. Poulos and B. Fellenius, among others, have written extensively on this topic.
For a conventional pile cap over pile (doweled connection), Fellenius would say there is no bearing pressure on the bottom of the pile cap, except near pile failure.
Poulos has written theoretical work, as well as case studies on disconnected piles below mat foundations.

bdbd (Geotechnical) · Answer 2 · 2016-02-12 16:01:01

I am sorry, I didn't write Plaxis. I have read these resources, my MS topic, but I want to see this on Plaxis 2D 2015.

mmtb (Geotechnical) · Answer 3 · 2016-03-06 18:51:39

The load sharing depends on many factors. Some of the factors includes : the number, size and location of the piles, the rigidity of the slab, the soil profile and loading.conditions.

kleo (Geotechnical) · Answer 4 · 2016-04-15 00:10:10

Sum the pile reactions and what load remains is taken by the cap/soil interaction.

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