Hi Bithin, you could find some info here:

Handbook of Offshore Engineering (2-volume set) (Elsevier Ocean Engineering Series)Jun 21, 2005

by Subrata Chakrabarti

regards

Thank you Juan . I'll look into it.

Hi Bithin, The book "Construction of Marine and Offshore Structures" of Ben C. Gerwick Jr could be a other option . 

Regards,

Hi Bithin, for spudcan in clay you can see https://www.researchgate.net/publication/262726849_Effect_of_Installation_on_the_Bearing_Capacity_of_a_Spudcan_under_Combined_Loading_in_Soft_Clay

Article Effect of Installation on the Bearing Capacity of a Spudcan ...

 Thank You Arnaud for your suggestion.

Hii Saulo. Actually I wanted some books/reference papers which will discuss about installation effects on bearing capacity (vertical,horizontal & moment) of offshore foundation systems (skirted foundation/suction cassion,spudcan,pipeline laying effects etc.) The book you mentioned is general one for marine environment and structural systems. Thank you.

Well, we got this "unibucket" also called "the bucket foundation" being developed by Universal Foundation, here in Aalborg university. It is a huge suction cassion, which is meant to serve as a reusable / cost efficient foundation for offshore wind turbines. (Competing with pile foundations)

They have some throughout investigations in installation effects and post-installation response. I can give a short summary:

• The bucket is installed like a suction cason, but very gently - not to suck the soil up in the middle. However, the soil is still exposed to some water flow gradient due to reduced pressure in the middle of the bucket.
• To test what happens to the soil, they did some CPT tests inside the bucket after installation (holes on the lid were closed using valves, then CPT was done), Comparing CPT before and after installation did not show reduced stiffness in sand.
• Triaxial tests also show that changing confining pressure should not affect soil stiffness (we got this "state of the art" triaxial apparatus, which does not crack a sample in half). Here I attached a Figure where p' was changed numerous times during a drained triaxial test on sand. Stiffness changes instantly when p' changes, but stiffness recovers instantly when p' recovers - thus temporary exposure to a pore pressure gradient should not affect much. What really matters is the deformation history - deformation modifies sand properties semi-permanently.

After installation the bucket foundation exhibits increasing stiffness and strength. At least as long as the loading cycles are slow enough to be drained, and loads are small enough to stray below bearing capacity limits. We also are able to "consume" and recover dilative strength of a bucket foundation in laboratory surroundings (undrained sand can have 10x higher strength, making structures impact resistant, but for only one cycle - otherwise, drained cycles are required to recover the undrained strength).

We have many papers about real life testing of cyclic foundation response where the "initial state" is mentioned. But few papers look deeper into "installtion effects on soil". If you are interested I can give you some links or names (Gulio Nikolai, Soren Nielsen, Lars Bo Ibsen, Evelina Vaitkuaite, Aligi foglia - did testing in our laboratory and have publications on the subject).

I see the topic was made Aug 27, 2015 - now it's Jul, 2016 ... but none the less...

Thanks a lot Tomas for such a good sharing. I am working on how the seabed geometry changes during installation and its effect on the response of offshore pipelines, skirted foundations and anchors. Also during installation depending on the rate of penetration as well as remoulding effects the shear strength of clay changes. I am trying to capture these effects through large deformation analysis. There are many papers I have found published from Centre for Offshore Foundation Systems, University of Western Australia. What you have shared is not exactly I was looking for. But I really appreciate your effort. Thank you.