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Showing 1 to 20 of 39 for “"Centrifuge modelling"”.
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Submarine landslide flows simulation through centrifuge modelling
… slopes. This thesis is concerned with developing centrifuge scaling laws for submarine landslide flows through the study of modelling submarine landslide flows in a mini-drum centrifuge. A series of tests are conducted at different gravity fields in order to understand the scaling laws involved in …
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Centrifuge modelling of railway embankments under static and cyclic loading
The study comprised the modelling of embankments on a heavy haul coal export railway line between Ermelo and Richards Bay in South Africa. The design of these embankments is usually done with slope stability analysis? method of slices. In the case of railway embankments, a uniformly distributed …
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Centrifuge modelling of permeability in a heterogeneous coal mine backfill sequence
… placed on a previously backfilled area. Centrifuge modelling provides a means of better understanding the hydraulic behaviour and measuring the permeability of opencast backfill under controlled laboratory conditions. Based on a preselected backfill prototype, an appropriate centrifuge …
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Centrifuge modelling of high shear capacity ribbed piles in stiff clay
… has primarily been investigated through physical modelling of the ribbed pile in a geotechnical centrifuge. Tools with which to install and load the piles have been developed so that traditional load tests can be carried out on small scale piles of varying rib geometries. Results will be compared …
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Centrifuge modelling of the behaviour of geosynthetic-reinforced soils above voids
… systems such as embankments and landfill liners. Centrifuge modelling of the soil and geosynthetic behaviour was conducted using a trapdoor to simulate the formation of a void in a controlled environment at realistic stress levels. A plane-strain model allowed visual observations of the …
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Centrifuge modelling of the impact of mechanised tunnelling on piled foundations using a miniature TBM
… projects in the urban environment make modelling the advancement of a TBM in a geotechnical centrifuge an attractive proposition. In this research, a miniature EPB TBM was developed for use in the Turner beam centrifuge at the University of Cambridge aiming to simulate the impact of …
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Centrifuge Modelling Study of Contrasting Structural Styles in the Salt Range and the Potwar Plateau, Pakistan
… styles both along and across the strike. The centrifuge modelling technique has been used to investigate these variations in structural style. For the purpose of modelling, the Salt Range and Potwar Plateau (SR/PP) stratigraphy has been grouped into four mechanical units. From bottom to top …
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Seismic Behaviour of Retaining Walls with Adjacent Structures
… The primary methodology in this research is centrifuge modelling. Five centrifuge models use a simplified eccentric structure representing a container crane, a cantilever retaining wall, and liquefiable sand. Two models without a structure behind the retaining wall are considered benchmark …
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SEISMIC ANALYSES OF SLOPE STABILITY AND LIMITING EARTH PRESSURES ACTING ON RETAINING STRUCTURES
… a sense more meaningful than the pseudo-static. Centrifuge modelling (with PIV technique) was performed on submerged soil slopes to show the robustness of the proposed approach. Considering that there are some scenarios where earthquake-induced slope failure occurs, some countermeasures including …
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Topographic and material controls on the Scottish debris flow geohazard
… flows at six study sites across upland Scotland. Centrifuge modelling is also used to simulate theinitiation of debris flows in soils with varying particle size distributions.Spatial densities of debris flow measured in the field indicate that hillslopes underlain by sandstone and granitic …
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Swelling behaviour of unsaturated fine grained soils
… cell and a computer controlled oedometer. Centrifuge modelling was used as a link between the laboratory tests performed and an existing prototype experimental wall. Three types of soils with different plasticity have been tested simulating the boundary conditions that act on a soil element …
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Ground movements during tunnelling in sand
… was modelled using the technique of geotechnical centrifuge modelling and the resulting ground deformations were recorded using digital image correlation. In these tests a unique tunnel face boundary condition was developed which allowed the boundary condition to be initially set as a zero strain …
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Long-term Cyclic Lateral Response and Optimisation of Shallow Foundations
… and cost-effective geometries. A comprehensive centrifuge modelling programme was conducted on a representative foundation for a 2 MW onshore wind turbine subjected to unidirectional and multidirectional monotonic and cyclic lateral loading in dense sand. Additional tests examined the influence …
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Integral bridge abutment and backfill behaviour
… be limited through smarter design. Geotechnical centrifuge modelling was the main research method used in this project. The reference configuration consisted of a full-height abutment atop a spread footing, supported on and retaining a dense granular sand, with thermal cycles simulated at the …
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Seismic behaviour of shallow foundations on layered liquefiable soils
… liquefied or softened ground.In this framework, centrifuge modelling provides a valuable tool for research by reproducing field conditions in a controlled environment.<br/>A series of 10 dynamic centrifuge tests were performed as part of this work.<br/>Thanks to the University of Dundee newly …
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Tunnelling Effects on Bored Piles in Clay
… of tunnelling beneath bored piles in clay. Centrifuge modelling was used to investigate the effects of tunnelling on bored piles in clay. A new centrifuge package, including an innovative new model pile, was designed to simulate tunnelling on bored piles in clay. Particle Image Velocimetry …
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Seismic behaviour of structures with basements in liquefiable soil
… A series of highly instrumented dynamic centrifuge tests showed that the presence of a basement can reduce the liquefaction induced settlement of a structure whilst maintaining the natural isolation provided by liquefied soil. The generation of positive excess pore pressures during …
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In Situ Diagnostics for Multiple Allergens in Food
… drag-in plate anchors. <br/><br/>Physical modelling was used to analyse the drag behaviour of this anchor. Tests were completed in a transparent clay surrogate, which was consolidated through the application of a pressure gradient across the sample‟s depth. The observations from these tests …
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