Results 251 to 260 of about 43,969 (311)
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Criterion for Flow Liquefaction Instability
Acta Geotechnica, 2013This study describes a general liquefaction flow instability criterion for elastoplastic soils based on the concept of loss of uniqueness. We apply the criterion to the general case of axisymmetric loading and invoke the concepts of effective stresses and loss of controllability to arrive at a general criterion for the onset of liquefaction flow.
Andrade, José E. +2 more
openaire +2 more sources
Liquefaction flow slides in large flumes
International Journal of Physical Modelling in Geotechnics, 2019Liquefaction flow slides in sand have been investigated during an extensive experimental research programme during the period 1973–1977 on behalf of the design of the storm surge barrier in the Oosterschelde estuary. The programme included more than a hundred tests in large- and medium-sized flumes on submerged, loosely packed sand bodies.
Maarten B. De Groot +3 more
openaire +1 more source
Flow Liquefaction Instability as a Mechanism for Lower End of Liquefaction Charts
Journal of Geotechnical and Geoenvironmental Engineering, 2017The state-of-the-practice uses the “simplified procedure” for evaluating liquefaction susceptibility of soils. Based on this procedure, liquefaction charts have been developed that correlate soil resistance to earthquake-induced stresses. These charts are based on case histories of past earthquakes and have proven to be useful while evaluating ...
Mital, Utkarsh +2 more
openaire +2 more sources
Liquefaction and Flow Failure During Seismic Exploration
Journal of Geotechnical Engineering, 1990A case history and analysis of a flow slide due to soil liquefaction is presented. The failure was triggered by vibratory tampers conducting a seismic reflection survey on a roadway embankment in Michigan's Upper Penninsula. Postfailure investigations included a survey of construction records, in situ and laboratory tests, and replication of the input ...
Roman D. Hryciw +2 more
openaire +1 more source
Coupled SPH-DEM simulations of liquefaction-induced flow failure
Soil Dynamics and Earthquake Engineering, 2021Abstract A fully Lagrangian particle-based method for coupled fluid-particle interaction is utilized to evaluate flow liquefaction of saturated granular soils overlain by an impermeable crust. The solid particles are modelled as spherical particles using the discrete element method (DEM). The smoothed particle hydrodynamics (SPH) is employed to model
Usama El Shamy, Saman Farzi Sizkow
openaire +1 more source
Predicting flow liquefaction, a constitutive model approach
Acta Geotechnica, 2017In this paper, flow liquefaction criterion for contractive loose sands is analytically extracted based on the fundamental definition of flow liquefaction. In order to obtain the closed form of this criterion, Dafalias–Manzari constitutive model is employed; so the stress ratio at the onset of flow liquefaction is presented as a function of model ...
Alireza Najma, Manouchehr Latifi
openaire +1 more source
Liquefaction flow behavior of Guamo sand
2015In soil mechanics there are many unknowns about the behavior of materials and even more great uncertainty generated sands, due to its gradation and shape of the grains is sometimes difficult to know their behavior and especially when trying to study by tests in laboratory.
Jimenez Jiménez Omar Javier +1 more
openaire +1 more source
Liquefaction and flow failure during earthquakes
Géotechnique, 1993Two aspects of seismically-induced liquefaction are discussed which are of vital engineering significance: the triggering condition and the consequences of liquefaction. The triggering condition is examined with respect to liquefaction analysis, note being taken of the onset condition which is governed by cyclic strength.
openaire +1 more source
Flow liquefaction instability prediction using finite elements
Acta Geotechnica, 2014In this paper, a mathematical criterion based on bifurcation theory is developed to predict the onset of liquefaction instability in fully saturated porous media under static and dynamic loading conditions. The proposed liquefaction criterion is general and can be applied to any elastoplastic constitutive model. Since the liquefaction criterion is only
Mohammadnejad, Toktam +1 more
openaire +2 more sources