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 26 for “"soil-pile"”.
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The Effect of Continuous Flight Auger Pile Installation on the Soil-Pile Interface in the Mercia Mudstone Group
… and chemical changes that occur to in situ soil at the soil-pile interface for continuous flight auger piles installed in the Mercia Mudstone Group. Four Continuous Flight Auger (CFA) piles were installed in the Gunthorpe Member of the Mercia Mudstone Group, central England. The effect on …
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A Hybrid Approach for Nonlinear Soil-Structure Interaction Analysis of Pile- Supported Bridges
The large-diameter reinforced concrete pile shafts are commonly designed as an economical solution for foundation of highway bridges in soft soils. The substructure method is a widely used technique for seismic SSI analysis of pile-supported bridges due to its remarkable computational efficiency. …
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Dynamic Analysis Of Offshore Structures
This study comprises three main parts: (1) Pile Driving Analysis. The conventional one dimensional wave equation analysis of the pile driving problem suffers from the empirical representation of the soil parameters. In this study, an improved one dimensional wave equation model is developed which …
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Interação de sistemas solo-estaca submetidos a solicitações dinâmicas
… is to present a method of analysis for dynamic soil-pile interaction. An analytical solution in frequency domain is developed for horizontal vibration and circular cross section, modelling the soil as a linear viscoelastic material. A comparison with the model of lumped mass is performed for …
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Finite element analyses of pile load tests performed in the Yorktown formation, Newport News, Virginia
… load-capacity and behavior of a single concrete pile modeled after full scale instrumented test piles which were employed in the Tidewater area of Virginia. Specifically, this report describes the subsurface conditions and full scale pile tests that were performed during the design phase of the …
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Numerical modeling of a bridge system & its application for performance-based earthquake engineering
… bridge deck collapse due to joint unseating to pile and abutment foundation failure due to lateral spreading. In most of these cases, soil pile-structure interaction (SPSI) has played an important role. SPSI is affected by soil conditions (e.g., competent soil or liquefiable soil) and loading …
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Interação solo-estaca de plataformas offshore
Winkler springs are used to represent soil in the Structural Analysis of Offshore Platforms. The soil characteristics for the non-linear soil behaviour are obtained from laboratory tests or using full scale loaded piles. The API Code through the "P-Y" curves, defines the stress-strain soil …
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Dynamic Pile-Soil Interaction in Laterally Spreading Slopes
… to deep foundation systems. However, the dynamic soil-structure interaction between liquefied soil and piles is extremely complex and further work is required to define the appropriate design pressures and to understand the mechanisms at work. This thesis presents the findings of an experimental …
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Field Trials of Ex Situ Smouldering Treatment (STARx) of Oil Sludge
… Here STARx is evaluated for the first time in soil pile configurations, using an engineered base concept called HottpadTM, at both the prototype (0.35 – 1.3m3) and field (80 – 160m3) scales. The treatment was applied to oily sludge from crude oil tank bottoms and oil water separation processes …
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Piles in Sand and in Sand Overlying Clay
… of single 60mm and 114mm segmented tubular steel piles driven and placed into loose sand and loose sand overlying clay. The soil was placed and instrumented under controlled conditions in a 3.0m diameter by 3.0m deep concrete tank. The 60mm pile was dynamically driven using a pneumatically …
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Impact of Jet Grouting on the Lateral Strength of Soil Surrounding Driven Pile Foundations
Jet grouting was used to strengthen the soft soil surrounding the piles and the pile cap of two full-scale driven pile foundations. Soilcrete columns, created by jet grouting, were placed underneath the pile cap and surrounding the piles of the first foundation. Two rows of soilcrete columns were …
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Seismic performance of pile-reinforced slopes
… of such slopes in non-liquefiable granular soils has been investigated and an extensive programme of centrifuge testing was conducted to quantify the improvements to seismic slope performance which can be achieved by installing a row of discretely spaced vertical precast concrete piles. This …
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Dynamic Full-Scale Testing of a Pile Cap with Loose Silty Sand Backfill
Pile caps are used in foundation design to aid multiple single piles to act as a pile group to resist lateral forces that may cause overturning moments. The pile cap and pile group resist these forces by pile-soil-pile interaction, base and side friction along the pile cap-backfill interface, and …
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Use of thermo-active piling for slope stabilisation
… and goods. A novel method, namely thermo-active pile row, was conceived to simultaneously increase the engineering performance of road embankments against slope failure and reduce the formation of ice.<br/><br/>In this thesis, the geotechnical implications of converting a row of traditional …
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ANALYSIS OF THE EFFECTS OF HEAVILY LOADED MAT FOUNDATION ON ADJACENT DRILLED SHAFT FOUNDATION
… this situation cannot be avoided, influence of soil pressures and deformations in soil, created by shallow foundation on adjacent deep foundation, must be evaluated. The study of interaction between deep foundations has been carried out by several researchers in terms of pile-soil-pile …
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Dynamic soil modeling in site response and soil-large pile interaction analysis
… problems; 1) one dimensional wave propagation in soil deposits and 2) the effects of lateral spreading on large pile foundations. Two new soil damping formulations are implemented in non-linear one-dimensional site response analysis for small and large strains. The first formulation introduces an …
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Behaviour of single batter piles and pile groups under lateral soil movement in sand
Piles are commonly subjected to induced loads from nearby construction activities such as approach embankments, excavation, tunnelling and moving slopes. To better understand the mechanism of this complicated soil-pile interaction problem, a comprehensive experimental and numerical program were …
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An Experimental and Theoretical Study of Pile Foundations Embedded in Sand Soil
… the load carrying capacity of model instrumented piles embedded in sand soil, and to develop and verify reliable, highly efficient predictive models to fully correlate the non-linear relationship of pile load-settlement behaviour using a new, self-tuning artificial intelligence (AI) approach. In …
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