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 20 of 85 for “"embedment"”.
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Nondestructive detection of foundation pile embedment depths for high mast light towers
… algorithms, for determining in situ pile embedment depths by way of seismic waves. The embedment depth of each pile supporting an HMLT is identified through a systematic sensing approach that includes: (i) collection and classification of the pertinent foundation designs and soil …
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Effects of fracturing fluids on mechanical properties and associated proppant embedment in four shale systems, The
Includes bibliographical references (leaves 104-108).
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Finite Element Analysis of the Connection Behavior of Precast Prestressed Piles to Cast-In-Place Bent Caps
… bent caps for various pile sizes and bent cap embedment depths. Current construction practice in South Carolina involves a plain pile embedment to a depth equal to a single pile diameter with a construction tolerance of ±6.0 in. (152 mm). Finite element models that simulate piles with a square …
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Computational fluid dynamics modelling of pipeline on-bottom stability.
… loadings, pipeline response, soil resistance, embedment and pipe-soil-fluid interaction. In this thesis Computational Fluid Dynamics (CFD) modelling is used to investigate and establish the interrelationship between fluid (hydrodynamics), pipe (subsea pipeline), and soil (seabed). The effect of …
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Bond Behavior of Fiber Reinforced Polymer Bars Under Hinged Beam Conditions
… relatively low compressive strength and minimum embedment length; the second condition allowed testing within NWC beams at twice the design compressive strength of the first condition and moderate embedment length. The load-slip curves developed show the differences that occur under the specified …
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Parallel-to-Grain Withdrawal Resistance of Structural Self-Tapping Screws in Canadian Timber
… on screws with a diameter of 10 mm with varying embedment depths, timber density and moisture content. Strains in the screws were monitored to detect if yielding was occurring. The withdrawal resistance increase as the embedment depth increased until the screws began yielding and eventually …
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Laterally Loaded Pile Cap Connections
… on the subject suggests that given a proper embedment length, a specialized reinforced connection may not be necessary. Eliminating these costly connection details could save thousands of dollars on both labor and materials. This research study focuses on the importance of the pile-to-cap …
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In Situ Diagnostics for Multiple Allergens in Food
… to be installed more quickly and to greater embedment depths than conventional 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 …
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Plate anchors for offshore foundations in sand and clay
… to be installed more quickly and to greater embedment depths than conventional 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 …
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Seafloor anchoring for platforms in the Messina Strait
… have demonstrated how the uplift capacity of embedment anchors is highly dependent on the soil properties and the anchor geometry. This work focuses in detail on the behavior of vertically loaded circular anchors to keep a floating structure stationary in the offshore environment. The main …
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The break-out behaviour of a suction anchor embedded in a granular soil.
… pressures above and below the anchor, and anchor embedment depths were recorded. Suction anchors develop high pull-out loads primarily due to the applied suction pressure with embedment depth. The behaviour of an embedded-type suction anchor in saturated sand is governed by a large number of …
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Bond of glass fibre reinforced polymer bars in high strength concrete
… influencing bond such as GFRP bar diameter, embedment length and surface configuration were investigated in both test methods, while the bar position, i.e. top or bottom, was only studied in hinged beams. Seventy-two pull-out cubes, eight pull-out prisms and twenty-four hinged beams …
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Behavior of Prestressed Pile to Bent Cap Connections and Damage Evaluation with Acoustic Emission
… of this effort has focused on the plain pile embedment detail. In an effort to better understand the connection behavior as well as to provide damage assessment tools a series of studies was conducted.</p> <p>The first study investigated the behavior of the plain pile embedment detail at …
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The Connection Behavior of Precast Prestressed Piles to Cast-In-Place Bent Caps
… of this effort has focused on the plain pile embedment detail. In an effort to better understand the connection behavior as well as to provide damage assessment tools a series of studies was conducted. </p> <p> The first study investigated the behavior of the plain pile embedment detail at …
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Investigation of the critical specific gravity for cables and pipelines during various backfilling and installation processes
Embedment of pipeline and cables in the seabed is achieved to protect them from issues such as loading by currents, damage from fishing trawler vessels and to provide thermal insulation. Depending on the type of soil and on financial and operational constraints, the embedment of pipelines/cables …
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Seismic Performance of Prestressed Concrete Piles In Cip Reinforced Concrete Pile Caps
… SCDOT connection details require the plain embedment of the pile into the bent cap one pile diameter with a construction tolerance of ± 6 inches. To better understand the moment capacity and ductility of these connections, full-scale tests have been conducted at the University of South …
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Scale Model Shake Table Testing of Shallow Embedded Foundations in Soft Clay
… building as the prototype structure. Foundation embedment depth, fundamental mode of the structure, and seismic loading function are varied to generate a large database of SFSI results under controlled conditions. The foundation level response is compared to free-field responses to determine the …
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The Development of Shaft Friction and End Bearing for Piles in Homogeneous and Layered Soils
… along a pile shaft in sand for a given pile embedment, and increases at a diminishing rate with pile embedment.<br/>(ii) The average coefficient of earth pressure, K , at ultimate load in loose sand exceeds Kp for shallow pile embedments.<br/>(iii) At full pile embedment and ultimate load the …
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Ensaios, "in situ", de resistência ao arrancamento de placas horizontais reduzidas
… small depth, circular plates, buried at shallow embedment, searching for the influence of the diameter and dept of the plate and diameter of the pit on the uplift load carrying capacity. It was also aimed to test the feasibility of some theoretical methods on tropical soils since they were …
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Basal Stability of Braced Circular Excavations in Isotropic and Anisotropic Clays
… of excavation depth-to-width ratio (H/B), wall embedment depth (D), clay thickness (T), and soil-wall interface roughness (Rint) below the excavation. In the next phase of the study, the NGI-ADP anisotropic strength model was utilized. In this set of analyses, the anisotropy ratio (SuP/SuA), …
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