... foundation subsea system dive drill soil plug resistance penetration turbine diameter wind farm installation otc 23962 drilling equipment upstream oil & gas trench cutter OTC 23962 Alternative Offshore Foundation Installation Methods Giovanni Spagnoli, and Leonhard Weixler, BAUER...

... application technology conference subsea system proceedings pullout capacity offshore technology conference suction caisson foundation loading penetration soil plug platform caisson pullout upstream oil & gas foundation suction caisson resistance OTC 8832 Application of Suction Caisson...

...; of these the processing of test data will not be discussed. Geometry parameters : The geometry parameters_ are defined on Fig 1. The vertical dimensions are the water depth, the total pile height, the penetration measured on the outer side of the pile, and the height of the soil plug in- side the pile...

...OTe 6421 Soil Plug Behavior of Piles in Sand J.D. Murff and R.D. Raines, Exxon Production Research Co., and M.F. Randolph, U. of Western Australia Copyright 1990, Offshore Technology Conference This paper was presented at the 22nd Annual OTC in Houston, Texas, May 7-10, 1990. This paper...

... diameter upstream oil & gas penetration depth mechanism penetration plug resistance trajectory pile penetration concave principal stress upward sampler relation buildup volumetric strain diameter pile soil plug recovery ratio plug length reservoir characterization...

... between "E" and "A" plat- forms. After removal of the deck, the depth of the soil plugs in the piles was measured. It was determined that the soil plugs in piles A-I and B-1 were too high and would have to be jetted out in order to permit placement of the pile charges at the proper depth to cut the piles...

... to the superpiles generates a suction keeping the soil plug inside the cylinder and preventing the cylinder from being extracted from the (impervious) foundation soil. The paper describes the results of analyses of the installation and in service behaviour of superpiles, based on conventional principles of soil...

... mathematical model for design of pile foundations. This paper also summarizes the engineering properties of corall ine 1imestone, coral gravel, and carbonate siltstone found at this site and the results of tension tests on 42-inch diameter pipe piles in these formations. The infl uence of soil plug...

... of the skirt piles was going to penetrate the upper sand layer with the use of available hammers. Also described in this section are the remedial measures which were taken to jet and airlift the internal soil plugs, and the innovative way in which the founding depth of the skirt piles was redesigned...

... for this structure drove to practical refusal between 177 - and 192 -ft penetration with either a Vulcan 040 or 060 hammer. An attempt was made to achieve additional penetration of one pile by removing the soil plug using a water jet-airlift and then redriving the pile. This procedure resulted in only 6...