... undrained shear strength shear strength correction ABSTRACT A new geotechnical investigation tool called the CPT Stinger has recently been developed to acquire geotechnical information cost effectively at deepwater sites. Combining jumbo piston core (JPC) sampling with the CPT Stinger (deployed...

... decreased with the presence of gas. Second, the shear strength of the clay could decrease or increase with the presence of gas, similar to what was discovered in Nava (2010), while in sand a decrease could occur. 1. Introduction One of the most complex phenomena that occur in the marine sediments...

... (Mitchell and Soga, 2005). Similar unusual characteristics and index properties have also been reported for Mexico City clay, which also contains significant amounts of microfossils (Mesri et al., 1975; Diaz-Rodriguez et al., 1998). 2.? Shear strength profiles Colreavy et al. (2012) present penetration data...

... ABSTRACT Remoulded shear strength is an important design parameter for several offshore geotechnical engineering applications, including design of skirted anchor and foundation systems, and for submarine slope stability analysis. However, there are significant differences in the equipment...

... or a cluster of individual skirted units connected together. Regardless of configuration, the foundation penetrates the seabed, confining a soil plug inside the structural members. skirt-soil interface centrifuge capacity factor proc displacement foundation randolph mf shear strength soil plug...

... production system resistance norwegian geotechnical institute geotechnical design skarv fpso penetration upstream oil & gas prediction misorientation anchor location anchor geometry anchor suction anchor loading shear strength fpso offshore norway te langford subsea system strength...

...; lo- cal friction, fs; and excess pore water pressure, u. These parameters provide an identification of the soil types. They also give access to the undrained shear strength of clays, su, and the relative density of sands, by means of empirical PIPE-SOIL INTERACTION IN HIGHLY PLASTIC CLAYS Hedi...

.... Bearing capacity factors for the T-bar and ball, N T-bar and N Ball relating to undrained shear strength, s u , and remoulded shear strength, s u-rem , are compared with theoretically derived N factors. Overall, the close relationship between net resistances from the T-bar and ball, q T-bar and q ball...

... ABSTRACT Geotechnical design of various foundation solutions and evaluation of geohazards requires a range of soil parameters, including monotonic and cyclic shear strengths as well as deformation and consolidation characteristics. For deepwater soft clays the determination of these parameters...

... to determine undrained shear strength and strength sensitivity in water-saturated clay and silt soils. It has a long history of use1, 2. Figure 1 presents basic test principles. A perceived advantage of the VST is its theoretical model for data interpretation, i.e. lower bound limit analysis for well- defined...

... high quality samples from deepwater sites, the direct field measurement of penetration resistance may provide a better guide for estimating the response of pipelines and shallow foundation or anchoring systems than laboratory shear strength data obtained from specific strain paths. The key to making...

... cone resistance disturbance resistance shear strength statistical analysis interpretation international offshore site investigation upstream oil & gas statistical method standard deviation variability undrained shear strength strength soil property soil parameter...

... as their ability to measure ac- curately the undrained intact and remoulded shear strength of soft clays has been demonstrated. Standard size full-flow penetrometers have an area ratio, AR (projected area of the probe to drill string), of 10:1 and a projected area of 100cm2. The larger projected area (compared...

... stability bearing capacity upstream oil & gas interface factor plough stability cable plough stability failure envelope sinkage resistance soft clay offshore pipeline plough safety penetration tow force shear strength operation skid Proceedings of the 6th International...

... d data are ava~lable, Load d~s t r~bu t~on and l ~ m ~ t sta es for structures w ~ t h mult~ple mudmats, Bear~ng capaclty and sk~r t design Issues, Cyclic load~ng and influence on shear strength, Foundat~on s tab~l~ty under Impact loads The Intent of the paper IS to prevent delays In the design...

... over the whole Guassol field area. The soils are composed of organic clays of hgh plasticity, with a carbonate content in the order of 10% and an organic content ranging between 10 and 15% The general trend is that of an undramed shear strength increasing more or less linearly with depth...

... and ice loading after deposition, the undrained shear strength of the clay have much greater variation than usually encountered in marine clays. The undrained shear strength typically increase from 5 to 25 kPa at sea bottom to 40 to 800 kPa at 9 m penetration with large variations in strength at all...

... of the backfill slurry, pipeline floatation will occur if the slurry displays no definable shear strength. This paper details the main types of trenching methods used based on how backfill is provided. The potential risks fiom uplift during backfilling and floatation are discussed with respect to each trenching...

... site investigation seafloor shear strength geohazard soil boring soil bomg resistance piston core geophysical data geotechnical data information fiom foundation design gulf artificial intelligence caisson reservoir characterization pcpt upstream oil & gas rafted block...