... of Norway near the end of the Second World War. As the sloping seabed at the location of the wreck is unstable, the first step was to install a large counter fill to prevent sliding of the contaminated sediments. piezometer contaminated sediment mercury offshore technology conference installation...

... concerns as to the presentday and future slope stability. Hence, at present, progressive weakening of the shallow sediment is monitoredusing a long-term array in collaboration between Ifremer Brest and MARUMBremen. It comprises two multi-level pore pressure probes (Ifremer piezometers, one installed...

... Abstract To characterize the link between faults and fluid release and to identify therole of fluid flow in gas hydrate occurrences, four piezometers were deployedat the border of a shale-cored anticline in the eastern Niger delta. Two ofthose piezometers were deployed along a major fault...

... on an AUV, working in the range 1.8 - 6.2 kHz, Ocean-bottom seismometers [OBS], In-situ geotechnical testing equipment: OTC 21727 3 o Penfeld (see Figure 3) for CPT measurements (max. penetration 30 m) and for compression wave velocity Vp measurements (sonic CPT), o Piezometers (max. penetration 12 m...

... sediments. The piezometers presented are single point borehole piezometer, the multilevel borehole piezometer, and a new CPT lance piezometer. The piezometers are designed for autonomous subsea deployment in long-term monitoring campaigns. Pore pressures can be measured to depths up to 200m below mudline...

... displacement piezometer OTC 6512 The Foundation of the Frigg CDPl Gravity Platform: A Case Study S. Lacasse, Norwegian Geotechnical Inst.; A. Goulois, Elf Aquitaine SNEA(P); L. Robberstad and E. Andersen, Elf Aquitaine Norge AIS; and P. Boisard, Elf Aquitaine SNEA(P) Copyright 1991. Offshore Technology...

... 1 duri ng the 108 day 1oadi ng peri od. If no pore pressure dissipation had occurred, the excess pore pressure would be approximately linear with depth and equal to the applied stress, av ' of approximately 347 kPa at thelocation of Piezometer "y" (Figure 3). The pore pressure dissipation during...

... between total stress and the pressure in the pore water in the soil. Some information about effective stress can be inferred from consolidation and shear strength tests; however, the most desirable source of data is direct measurement of total stress and pore water pressure. Piezometers have long been...

... under these conditions. frequency level frequency sweep pore pressure piezometer upstream oil & gas vibration liquefaction resonance gauge ground surface platform reservoir characterization test pile full-scale dynamic lateral pile test standpipe configuration transducer...

... conference pore pressure instrument experiment resolution hydrostatic pressure upstream oil & gas us government accelerometer storm calibration pulse piezometer displacement OTC 3974 STORM-INDUCED BOTTOM SEDIMENT DATA SEASWAB II RESULTS by Glen N. Williams, Wayne A. Dunlap, Beth Hansen...

... structures, and for the evaluation of axial capacity of piles. Also, pore pressure information is required for hydrogeologic studies. A special piezometer has been manufactured for measurement of pore pressures at deep penetrations in sand or clay soils arid has been used at offshore sites in the Gulf...

... the pore pressures exhibited cyclic response to the wave-induced bottom pressures. In at least two instances the pore pressures increased significantly during storms, which is probably indicative of major sub-bottom movements. Several different piezometers systems were utilized to make the pore pressure...

... of the system. A wave rider and bottom pressure transducer were used to determine wave characteristics while accelerometers and piezometers were used to determine bottom sediment motion and pore water pressures. These data were collected on a continuous basis for a year. Significant wave activity...

... by corrugated plates. settlement geotechnical institute water pressure storage reservoir characterization institute gauge friction angle ekofisk tank foundation engineer pore water pressure installation november 1973 upstream oil & gas piezometer north sea storm sea floor tank...