...Vahdat Samandar Ajirlou; Jian Deng In this paper, the stochastic dynamic stability of pile foundations is investigated under multiple axial loadings along with soil pressures, extending traditional analyses that typically consider only one or two excitations. The system is modelled...

... reduces the safety and service performance of the soil structure. In this paper, a coupled computational fluid dynamics–discrete-element method (CFD–DEM) model was employed to investigate the particle migration phenomena, mechanical response of contact interfaces, variations in flow fields and macroscopic...

... by liquefaction. Earth slides in this class are rapid and dangerous events (Hungr et al., 2014), whose modelling requires a combination of dynamic analysis for very large displacements and appropriate constitutive modelling capable of handling saturated and unsaturated states, which often coexist...

... for straightforward use of soil constitutive models in the analysis of the entire life cycle of a flowslide. The proposed framework couples the dynamic motion of a landslide mass with the pore fluid transients taking place within a pre-defined liquefiable zone. The constitutive law modulates the feedback between pore...

... for the effects of dynamic cyclic loading, such as pile–soil gapping. In this paper a dynamic model based on the beam on non-linear Winkler foundation scheme with a novel algorithm capable of capturing the effects of pile–soil gapping is presented. It can account for gap cave-in, and the resulting gap size can...

... is correlated with shear modulus G and can be obtained as follows 1 V s = G ρ 04 06 2021 22 09 2021 © 2021 Thomas Telford Ltd 2021 compression wave velocity constrained modulus reduction curve degradation of geomaterials dynamics earthquakes...

...Srikanth S. C. Madabhushi; Stuart K. Haigh Dual-row retaining walls can be utilised to form embankment structures for protection against tsunamis or as port structures. The dynamic response of these walls involves a complex interaction between the soil and structural elements which is not well...

... 2021 Thomas Telford Ltd 2021 dynamics finite-element modelling full-scale tests ground improvement numerical modelling The vibroflotation method is an established vibratory-based ground improvement technique developed by Keller in the 1930s to densify cohesionless granular materials...

.... The proposed model was then validated against wave velocity measurements and verified against finite-difference analysis. The half-closed self-weight consolidation behaviour was subsequently investigated, compared with Terzaghi's theory, Fillunger–Heinrich's dynamic theory and the u –p form...

... useful insights to assess whether the finer particles contribute to stress transmission and hence the mechanical behaviour of gap-graded materials. 11 11 2019 20 01 2021 © 2021 Thomas Telford Ltd 2021 discrete-element modelling dynamics fabric/structure of soils geophysics...

...Joani Radhima; Konstantinos Kanellopoulos; George Gazetas Three-dimensional finite-element analyses are performed to compute the interaction factors between two neighbouring piles, under both static and dynamic horizontal displacements. The fixed-head elastic piles are flexible, embedded...

... the dynamic response of the soil–abutment system. To deal with this problem, this paper describes the formulation of a novel one-dimensional, inertial macroelement for simulating the dynamic behaviour of bridge abutments. The non-linear force–displacement relationship is characterised by a multi-surface...

...Eduardo E. Alonso The paper analyses the dynamic behaviour of a class of landslides characterised by a well-defined failure surface where shear strains accumulate. The subject goes beyond the common concepts of safety factor and static analysis, and discusses procedures to identify the velocity...

... still suffers from significant uncertainties in relation to cyclic/dynamic loading conditions. The aim of this work is to shed new light on dynamic soil–monopile interaction, based on the results of unique full-scale experiments performed at the Westermeerwind wind park (Netherlands). The response...

... are suggested for simplifying the problem, leading to elementary scaling relations. The scalings provide simple yet meaningful relations that reveal and explain the fundamental traits of the dynamic behaviour of these systems. 5a ∂ ∂ η f η ∂ u ~ ∂ η + r 2 u...

... infrastructural networks. Non-linear two-dimensional dynamic analyses were performed on different tunnel and soil configurations by using the finite-difference method implemented in Flac2D software. The applied input motions were selected considering their amplitude and frequency content variability. The response...

...–footing contact area during the cyclic loading tests. Fig. 4. Schematic diagram of the experimental model in oblique cyclic loading tests: (a) a semi-three-dimensional view; (b) top view (unit: mm) 28 01 2019 11 12 2019 © 2020 Thomas Telford Ltd 2020 dynamics...

.... Strain-dependent dynamic properties of sands are determined using bender element tests and cyclic triaxial tests at different mean effective stresses, void ratios and mean grain sizes. It was observed that normalised shear modulus and damping ratio increase as mean grain size decreases at a given strain...

...Davide Noè Gorini; Luigi Callisto This paper describes an original approach to the study of the seismic behaviour of bridge abutments. The proposed method incorporates a simplified description of the dynamic response of the bridge structure into a finite-element model of the soil–abutment system...

... wide and 6 m high. Eight servo-hydraulic actuators are programmed to work in a desired sequential order to exert dynamic loads on multiple sleepers to simulate moving train loading conditions on the track with axle load up to 20 metric tons and the highest train speed of 360 km/h. This facility makes...