to RDenis:
wow! so I'm not alone in this world...........
I'll continue my research and keep You informed of results I find.
Anyway, performing driveabilty analyses assuming a reduced
hammer energy (i.e. reduced stroke, I suppose) is prudential
as far as feasibility of driving is concerned.
But...
to Focht3:
Yes, I think so, the picture You made is actually reliable.
The good new is that information are coming back to me and it seems that if the pipe curvature is not high, the problem is non significant. They tell me to think about the fact that some pipe piles (with small diameter, I...
Dear Focht3,
the paper is:
"Driving Analysis for Initially Curved marine Conductors", by F. Joseph Fisher, Shell Oil Co., OTC 2309, 1975.
The problem formulation seems to be a bit complex, as transverse force (shear) and bending moment behaviour need to be added to the classic axial force versus...
hi.
to GeoPaveTraffic:
Believe me, it happens, and it is sometimes used for the offshore industry. They are adopted to guide the initial part of the drilling tool in cases where the well is inclined with respect to the vertical axis, in order to reach an oil layer not below the platform...
I was asked to evaluate the driveability of "curved" conductor pipes for the offshore industry.
Even if I'm used to analyze the driveability of offshore
foundation piles, that are assumed to be perfectly straight, I was not able to find any paper or book where a calculation method for a "curved"...
Ok. thank You, Focht3,
actually, this is the approach I will follow.
As far as the "general" topic is concerned, that soil is really "a shame", but very often shallower material at sea bottom are so poorly resistant.
The site is actually not defined, we only know soil data and the basic geometry...
No, it is not a jack-up foundation; it is a small service structure to be placed at sea bottom.
Foundation size (B×L), as well as the height of the skirts, are the elements to be designed.
Available data from site investigation allows to assume an
increasing with depth Undrained Strength, with a...
I need to verify the stability of a "mudmat" type foundation of a structure to be placed at sea bottom.
The soil is there made by a very soft clay and its surface is inclined.
The base of foundation is inclined parallel to the slope and is provided with "skirts".
The problem is now how to...
