... ) α where α is called the curvature parameter and γ r is the reference strain value at which G/G max = 0.5. This model uses only two parameters, and the reference strain provides an efficient normalization of shear strain. The Bay of Campeche is located in a region of moderate to high...

.... Finite-element computed seismic slope performance indicators, including horizontal peak ground acceleration at the seafloor and earthquake-induced maximum shear strain within the slope, along with horizontal seismic coefficients required to trigger slope instability in limit-equilibrium based...

... and PI increase, the G/G max curve tends to shift upward and the damping ratio curve tends to shift downward; and the value of OCR has practically no effect on the position of the curves. The validation of the calculated values of G/G max and D shows the best predictions are found at low shear strains...

... properties such as confining pressure and fines content on the dynamic parameters are described and guidance on interpretation and applicability is provided. A new calibrated model is proposed to evaluate normalized shear modulus reduction and damping ratio curves as a function of shear strain of marine...

... associated with strain-softening soils. The FE analysis results are compared to the test data from the independently conducted model tests and the established results from the literature. Good agreements among different studies are observed. clukey constitutive model loading shear strain fe...

.... subsea system undrained shear strength shear stress andersen cyclic shear strain test result upstream oil & gas ocr 1 shear strain database cyclic shear stress shear strength dss shear strength contour vertical effective stress triaxial test reservoir characterization strength...

... stiffness of sand at small shear strains, utilizing a three-dimensional finite element method (3-D FEM) model that incorporates the non-linear stiffness of sand to predict the lateral response of a monopile, testing the proposed approach with foundation model tests in the laboratory, and applying...

... strain-controlled cyclic direct simple shear test that provide data to define the normalized shear modulus, G/G max , and material damping ratio, D, versus cyclic shear strain. The range of cyclic shear strains of the database is from 0.0001% to 1%, and the range of carbonate content (Ca 2 CO 3 ) from 10...

... of modulus reduction and material damping ratio curves developed specifically for the Bay of Campeche clay when dynamic laboratory data is not available to generate these curves. darendeli upstream oil & gas site response analysis spectral acceleration shear strain design acceleration spectra...

... ground motion permanent displacement slope angle travasarou saygili kobe ground motion ground motion component total displacement ground motion intensity permanent shear strain displacement total permanent displacement shear strain seafloor kaynia reservoir characterization...

... in the equation for normalized shear modulus are: confining pressure; shear-strain amplitude; a reference strain, defined as the shear strain at which the shear modulus has reduced to 0.5G max , and a curvature parameter which controls the rate of modulus reduction, such as the model suggested by Darendeli (2001...

... acceleration. Considering the equilibrium of the submerged displacement clay slope loading weak layer shear stress shear strain stability nadim reservoir characterization biscontin reduction upstream oil & gas norwegian geotechnical inst earthquake shear strength submarine slope...

... conference shear strain earthquake upstream oil & gas offshore structure accelaration deformation teruhisa fujii reservoir characterization masayuki hyodo kazuhiko kamezaki OTC 12093 Online Response Test on Saturated Sand Seabed Underneath Structure Subjected to Ice and Seismic Loads...

... drammen clay shear strain otc 8830 strength upstream oil & gas cyclic shear stress cyclic shear strain gulf triaxial test cyclic shear strength shear stress andersen shear strength cyclic strength plasticity index subsea system soil parameter suction caisson OTC 8830 Soil...

... simple shear test shear strain upstream oil & gas pore pressure villet dilate static-only test reservoir characterization OTC 4918 Simple Shear Tests on Highly Overeonsolidated Offshore Silts by W.e.B. Villet, Dames & Moore, and N. Sitar and K.A. Johnson, U. of California Copyright 1985...

... & gas magnification factor soil-pile-structure interaction fundamental behavior soil-pile system frequency stiffness interaction sp system earthquake element method shear strain lateral load-deflection relationship reservoir characterization superstructure soil-pile spring sp interaction...

... excitation kpa amplitude reservoir characterization shear strain strength ratio washington excitation strength cyclic strain ne pacific clay shear strength loading degradation OTC 2790 DYNAMIC BEHAVIOR OF ANORTHEAST PACIFIC CLAY by Shun Chih Ling, Naval Facilities Engineering Command ©...

... . ( 2a ) where Su = clay undrained strength F.S. = static factor of safety 1J = ~SGu· YJ . . (2b) Substituting (2a, 2b) in (1) and simplirying: ~Y (F1.S. + C- tShaded area, Figure 3) (4) where (average G during N cycles at a strain amplitude equal to y) x (shear strain yshear strength Su...

... be considered in the selection of seismic design parameters for the offshore structure and its foundations. equation reservoir characterization engineer degradation dcharm shear strain degradation index bay mud excitation initial backbone curve charsoil loading half cycle upstream oil...