نتایج جستجو برای: cohesionless soils
تعداد نتایج: 48897 فیلتر نتایج به سال:
Soil - structure interaction behaviour of pile foundation is complex for heavier structures which suffer large lateral load due to wind, wave action etc., in addition the vertical and oblique load. The parameters involved determining capacity are its structural geometry, soil properties ground condition. different horizontal compared sloping ground; it even under loading unloading conditions. I...
The macroscopic mechanical behaviour of granular materials is governed by microscopic features at the particle scale. Photoelasticimetry is a powerful method for measuring shear stresses in particles made from birefringent materials. As a complementary method, we here identify the hydrostatic stress networks through thermoelastic stress analysis using infrared thermographic measurements. Experi...
We have performed a systematic, large-scale simulation study of granular media in two and three dimensions, investigating the rheology of cohesionless granular particles in inclined plane geometries, i.e., chute flows. We find that over a wide range of parameter space of interaction coefficients and inclination angles, a steady-state flow regime exists in which the energy input from gravity bal...
The mechanical response of cohesionless granular materials under monotonic loading is studied by performing molecular dynamic simulations. The diversity of shapes of soil grains is modelled by using randomly generated convex polygons as granular particles. Results of the biaxial test obtained for dense and loose media show that samples achieve the same void ratio at large strains independent of...
Biologically active, fine-grained sediment forms abundant sedimentary deposits on Earth's surface, and mixed mud-sand dominates many coasts, deltas, and estuaries. Our predictions of sediment transport and bed roughness in these environments presently rely on empirically based bed form predictors that are based exclusively on biologically inactive cohesionless silt, sand, and gravel. This appro...
In this paper the mechanical behavior of a soilbag under an increasing vertical compression is numerically investigated using a micro-polar continuum approach. Particular attention is paid to the influence of the interaction between the filling material and the bag on the evolution of the stress strain behavior of the soilbag structure. The mechanical behavior of the cohesionless granular mater...
Effects of cow dung ash and calcium hydroxide on geotechnical properties of expansive and loose soil
The study is an investigation into the effects of CDA and Ca (OH)2 on geotechnical properties expansive (Sample A) loose soil B). experiments were designed to adding in various percentages by weight (5%, 15% 15%) dry with 5% constant (OH)2, which produces pozzolanic reactions samples. Sample A was collected at Moniya, Ibadan, B from polytechnic, Ibadan and, cow dung obtained a farm settlement I...
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