Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Soil Shear Strength"”.
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Assessing the vegetation and soil shear tester (VASST) as a tool to measure vegetated soil shear strength
… a range of land management regimes utilizing soil, vegetation, and climatic data. In general, OPAL’s intended purpose is to help land managers optimize training land carrying capacity. As part of OPAL, the Vegetation And Soil Shear Tester (VASST) was developed as a new method of in-situ …
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Quantifying soil reinforcement by fibrous roots
Reinforcement of soil by fibrous roots is crucial for preventing soil erosion and degradation,yet the underlying mechanisms are poorly understood. Without fully understanding root enmeshment within the soil matrix, and root biomechanical properties key for increasing soil shear strength, adoption …
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A model for predicting narrow tool behavior under dynamic conditions
… tests was conducted to determine the effect of shear rate on soil shear strength and soil-metal friction parameters. Second, a model was developed to include dynamic effects. Third, the model was verified experimentally under laboratory conditions. Direct shear tests using a conventional shear …
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Characterization and Modeling of Deformable Soils for Tire Performance Simulations
The accurate prediction of tire-soil interaction plays a crucial role in the optimization and design of off-road machinery used for agricultural, defense, construction, and mining applications. The tire-road interaction studies focus solely on road roughness and friction between rubber and asphalt …
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Salt marsh substrate composition and responses to applied stress
… and the vegetation species-poor. Soil shear strength and compressibility are determined by applying geotechnical methods which have not previously been applied to salt marsh environments to determine marsh resistance. These results are compared to commonly-used in situ methods for …
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Influence of post-cyclic loading on hemic peat
Construction on peat soils has proven to be a challenging task to civil engineers since this soil type has a significant issue that arises from common problems construction of roads, housing and embankment construction with regard to peat are stability, settlements and major problems were …
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Pipe-Soil Interaction on a Clay Seabed
… load cases requires an understanding of pipe-soil interaction.<br/><br/>This thesis reports the results of a research study investigating pipe-soil interaction on a clay seabed, as relevant to the design of subsea pipeline systems. This study has utilised numerical analysis techniques based on …
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Rate Effect Behaviour of Different Clays from High Speed Triaxial Element Testing
… %/hr. Strain rate effects lead to increasing soil shear strength in fine grained soils under undrained conditions and are important for accurate predictions in a number of geotechnical applications. These include Rapid Load Testing (RLT) of piles, Free-Falling Penetrometers (FFP) and Deep …
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Experimental study of shear behaviour of high density polyethylene reinforced sand under triaxial compression
Soil reinforcement is an ancient technique which involves the addition of tensile elements like plastics in the soil to increase its engineering properties like shear strength, settlement, cohesion and bearing capacity. In consideration of this, a series of triaxial tests were undertaken to …
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Improving Erosion Resistance and Revegetation of Wildfire-Altered Soils Using Microbial Induced Calcite Precipitation
… and the environment. Wildfires affect soils by burning their organic matter, resulting in an immediate deplete of nutrients and a significant reduction in nitrogen level. Wildfires also alter soils’ physical properties and make them less resistant to erosion which results in debris …
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Behavior and efficiency of perimeter pile groups
… Abaqus. This gave insight into the pile-soil interaction and permitted a more meticulous analysis of the soil stresses and displacements. In addition, the numerical modelling enabled extension to the original variables tested as part of the centrifuge experiments and the soil shear …
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Use of thermo-active piling for slope stabilisation
… moment distribution along the pile, and overall shear resistance of the model were considered key indicators of the slope performance. An analytical model was also developed for better understanding the influence played by temperature changes in this heavily coupled soil-structure interaction …