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Dissertations / Theses on the topic 'Geotechnika'
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Kowalska, Magdalena. "Identyfikacja parametryczna modeli gruntów w zagadnieniach geotechniki." Rozprawa doktorska, [s.n.], 2009. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=1381.
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Kowalska, Magdalena. "Identyfikacja parametryczna modeli gruntów w zagadnieniach geotechniki." Rozprawa doktorska, [s.n.], 2009. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=1381.
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Pargač, Martin. "Zajištění hlubokého zářezu v sesuvné oblasti." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226336.
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The thesis called Securing of Deep Cut in Slide Area focuses on the basic analysis of the problems connected to landslides and securing of the slopes. It also presents a solution of a certain problem, where the slope stability, potencional landslide launchers and subsequent remediaton are discussed.
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Pieczyrak, Jacek. "Ustalanie parametrów wybranych modeli gruntu na podstawie próbnych obciążeń." Praca habilitacyjna, Wydawnictwo Politechniki Śląskiej, 2001. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=8604.
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Valkó, Attila. "Zajištění stavební jámy na stavbě RD." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-402982.
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Diploma thesis deals with securing of foundation pit of family house in given geological conditions situated in Brno-Kohoutovice. The aim of the thesis is to list possible solutions of securing foundation pits in general and solve this geotechnical problem with an appropriate solution. Static calculations were performed by geotechnical software GEO5.
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Pospíšil, Jan. "Návrh založení polyfunkčního domu v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227471.
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The objective of thesis is to design and evaluate suitable foundation pit and in the establishment of multi-functional building on the street Smetanova 19 in Brno. The part of this thesis is also to describe the technological process of implementing the designed constructions and the preparation of relevant design documentation.
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Janík, Michal. "Návrh sanace sesuvu Nedašova Lhota." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225518.
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The thesis called The Design of Nedašova Lhota Landslide Securing concentrates on the basic analysis of the problems connected with landslides and safety factors needed for the slopes stability. At the same time it presents a concrete solution to the given practical task, where the slope stability, the causes leading to the landslide and the subsequent redevelopment in view of financial requirements are discussed.
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Wetterová, Alice. "Řešení stability svahu v náročných geotechnických podmínkách." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225706.
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Aim of the diploma thesis is design elements of slope stabilization in accordance with the planned highway D3 in Slovakia section of Cadca, Bukov - Svrčinovec and relocation of a local road. Objective subject is situated on the slopes of Cadca. In diploma thesis is an analysis of the area with the proposed stabilizing elements in the 5 GEO FEM, their assessment, including determining the overall stability of the territory according to the degree of safety.
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Plevová, Lenka. "Stavební jámy kruhového průřezu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226783.
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The master´s thesis focuses on design of underground sprinkler tank for a shopping centre Sconto in Hradec Králové. The purpose of this thesis is to design and to analyse all parts of this construction. These parts are the roof, the bottom plate and the wall, which is represented by secant piles. Due to the high level of the ground water which causes a great pressure on the bottom of the tank, the solution of the bottom plate represents very important part of this thesis. There were used two programs for an analysis, Scia Engineer 2013 and FIN EC – Beton 3D. Furthermore, the work contains a view and a brief description of methods used for sheeting of foundation pits of a circular cross-section. In the end, this thesis contains the design of two other solutions of bottom plate and its economic comparison.
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Mácsik, Josef. "Soil improvement based on environmental geotechnics : environmental and geotechnical aspects of drainage of redox-sensitive soils and stabilisation of soils with by-products." Doctoral thesis, Luleå tekniska universitet, 1999. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-16786.
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I avhandlingen behandlas Miljögeotekniska problem som "dränering av redox-sensitiva jordar", "blockstabilisering av sulfidjord och torvjord" och " undersökning av nya vägmaterial". - Miljöproblem, kopplat till dränering och/eller urgrävning av redox-sensitiva jordar, som järnhaltiga moräner och sulfidjordar, behandlas i denna avhandling. Dräneringsproblem, orsakat av igensättning och korrosion, kan förutses genom att bedöma jord- och grundvattenkemin hos jord- respektive grundvattenprover. -Blockstabilisering är en grundläggningsmetod som används i organiska jordar, där dränering och urgrävning bör undvikas. I denna avhandling behandlas stabilisering av sulfidjord och torvjord med Portlandcement, Portlandcement/ Hyttsten och Portlandcement/LD-slagg. För kontroll av homogenitet hos stabiliserade fältprover från sulfidjord och torvjord har metoder, för respektive jord, tagits fram och föreslagits. Resultaten visar att stabilisering med Portland-cement och Hyttstenbaserade tillsatsmedel fungerar tillfredsställande, utan att de stabiliserade materialens halter av reglerade element/föreningar överskrider svenska riktvärden för känslig markanvändning. Portlandcement/LD-slagg ger bra stabiliseringsresultat men LD-slagg innehåller höga halter av lakbart Vanadin. - Geotekniska egenskaper hos ett jord- eller vägmaterial kan förbättras genom tillsättning av restprodukter som tillsatsmedel. Miljögeoteknisk undersökning bör därför utföras.<br>Godkänd; 1999; 20061117 (haneit)
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Velezmoro, Abanto Lesly Noelia, and Linares Gabriel Antonio Cabrejos. "Análisis de la probabilidad de falla de las cimentaciones superficiales de los puentes de la carretera Huánuco - Conococha." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/652836.
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La presente tesis aplica métodos estadísticos asociados a la probabilidad de falla y factor de seguridad para determinar el riesgo y por consiguiente, desarrollar una propuesta de ingeniería más precisa con respecto al diseño geotécnico de cimentaciones ya que, esta investigación tomaría en cuenta el riesgo de falla a los que se exponen las estructuras; así mismo, se evaluará el impacto económico, del costo de la construcción más la ruina entre el costo de la edificación y el riesgo disminuido; obteniendo así, la respuesta de modificar la normativa y mejorarla consiguiendo así una calidad de vida alta ya que se mejoraría la sostenibilidad y la seguridad.
Para el desarrollo de esta tesis se estudió 8 puentes de la carretera Huánuco – Conococha los cuales cuentan cada uno con su análisis geotécnico.<br>This thesis applies statistical methods associated with the probability of failure and safety factor to determine the risk; and consequently, develop a more precise engineering proposal regarding geotechnical design of foundations. The present investigation considers the risk of failure to which the structures are exposed; likewise, the economic impact of the construction cost plus the ruin, between the construction cost and the diminished risk is evaluated; obtaining the response to modify the regulations and improve it, thus achieving a high quality of life with better sustainability and security.
For the development of this thesis, 8 bridges of the Huánuco - Conococha highway were studied, each one having its own geotechnical analysis.<br>Tesis
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Williams, Elizabeth S. "Upheaval buckling of offshore pipelines buried in loose and liquefiable soils." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:10c2cf4d-ab26-4f2c-82d9-35e15cfa03bc.
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Pipelines used for the transportation of oil and gas products offshore are often buried beneath the seabed for protection from mechanical damage and for thermal insulation. During high temperature and high pressure operations, these pipelines are susceptible to resurfacing behaviour known as upheaval buckling, a structural response that is strongly influenced by the resistance of the surrounding soil. Despite much previous research on pipe uplift, the influence of the initial soil state – particularly in loose and liquefiable soil conditions – on the uplift resistance and corresponding buckling behaviour of the pipe is not well understood. This thesis presents research that examines the implications of these backfill conditions in the context of the global behaviour of the pipeline. The work consists of plane-strain monotonic uplift experiments focusing on density, rate, and stress level effects on the initial pipe-soil response. This is followed by numerical modelling of the global buckling behaviour using the experimental data as inputs. Finally, plane-strain cyclic experiments examine the possibility of progressive upward displacements over a number of cycles causing eventual upheaval buckling. A key finding from the uplift tests is that very loose backfill conditions may result in a localised flow-around failure mechanism, associated with lower peak resistance and a softer force-displacement response than with the sliding block mechanism that is typically assumed. This leads to lower peak buckling loads/temperatures than those predicted by current design guidelines. High quality data from both the monotonic and cyclic experiments was used to assess and suggest improvements to design guidance for these conditions.
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Zhang, Jie. "Characterizing geotechnical model uncertainty /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202009%20ZHANG.
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Shah, Janvi Pankaj. "Resilient geotechnical asset management." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6644/.
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There is overwhelming evidence that the development of new, technically sound, engineered and fit-for-purpose critical physical infrastructure is vital for economic growth and stability. With many countries targeting significant levels of capital investment in energy, transport, communications, flood management and water and waste water infrastructure, there is a vital need for asset management frameworks that can provide both robust and resilient asset support. Currently, asset management tools focus predominantly on data management, deterioration modelling, condition assessment, risk, as well as economic factors (such as whole-life costing and developing investment plans). Some also consider the vulnerabilities of a network to climate change and extreme weather events such as flooding. However, rather than taking a long term view, asset management strategies are often short term, typically five years or less. What is needed is a long-term approach, which will ensure assets are safe, secure and resilient to what the future may hold in 20, or even 50 years’ time. The thesis describes the development of a ‘Resilience Assessment Framework’ which provides a platform to appraise resilience of geotechnical assets in the planning stage of asset management by considering how geotechnical assets (specifically for transport infrastructure) designed and built today will perform in the light of socio-economic, environmental, political, technological changes and shock events in the future. This framework intends to assist in strategic level decision-making by enabling long term planning and management of geotechnical assets and help future proof transport infrastructure. The proposed framework is validated using two real case studies to demonstrate its use and applicability in the field of geotechnical asset management.
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Stoklasová, Andrea. "Silové a deformační chování duktilních mikropilot v soudržných zeminách." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409752.
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This thesis is focused on creation of mobilization curves, based on data, obtained from standard and detailed monitoring of the load test. The load test was performed on the 9 meters long ductile micropile. The first part of the thesis explains the methods and principles, which was used to construct the mobilization curves. Next there is description of the technologies of ductile micropiles and the load test. In the next part of the thesis is generally explained process, which was applied to the evaluated data. For evaluation was used spreadsheet Microsoft Excel and programming language Matlab, with Kernel Smoothing extension. In the last chapter of the thesis there are interpreted the load transfer function together with skin friction and micropile displacement.
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Herle, Ivo. "Ohde-Kolloquium 2014: Aktuelle Themen der Geotechnik." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A27847.
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Tagungsband des Ohde-Kolloquiums 2014. Die Fachtagung fand am 26.03.2014 an der TU Dresden statt.:Experimentelle Untersuchung der Kapillarität bei Sand unter monotoner und zyklischer Belastung, Marius Milatz
Mehrphasen-Modell zur Simulation von Suffosion, Heike Pfletschinger-Pfaff, Jan Kayser, Holger Steeb
Experimentelle Ermittlung intergranularer Kräfte unter Nutzung von 2D-DIC, Max Wiebicke, Edward Andò, Denis Caillerie, Gioacchino Viggiani
Systeme paralleler Scherbänder - Experimentelle und analytische Untersuchungen, Lars Röchter
Rechnerischer Stabilitätsnachweis für verflüssigungsgefährdete Standorte, Nándor Tamáskovics
Untersuchung des Einflusses von Gaseinschlüssen unterhalb des Grundwasserspiegels auf Druckausbreitung und Bodenverformungen mittels gekoppelter FE-Berechnungen, Hector Montenegro, Oliver Stelzer
Zeitabhängige Setzungen von Sand und FE-Simulationen einer Tagebaukippe, Stefan Vogt, Emanuel Birle, Gero Vinzelberg
Über die Berücksichtigung großer Bodendeformationen in numerischen Modellen, Daniel Aubram
Die Gefrierkernmethode - Weiterentwicklung des Erkundungsverfahrens zur geohydraulischen Charakterisierung von Sohlsedimenten, Daniel Straßer, Hermann-Josef Lensing, Dominik Richter, Simon Frank, Nico Goldscheider
Nutzung von Verfahren der Bildanalyse zur Baugrundbeurteilung, Markus Wacker, Thomas Neumann, Jens Engel, Gunter Gräfe
Anwendung von Elektroosmose zur Reduzierung des Herausziehwiderstandes von Spundwänden: Großmaßstäbliche Modellversuche in Ton, Christos Vrettos, Kai Merz
Zementfiltration bei der Herstellung von Verpressankern in nichtbindigen Böden, Xenia Stodieck, Thomas Benz
Modell- und Elementversuche zur Bodenverflüssigung, Erik Schwiteilo, Ivo Herle
Dynamische Probebelastung einer Mikropfahlgründung - Feldversuch und dynamische 3D-FE-Simulation mittels Hypoplastizität, Thomas Meier, Jens Jähnig, Sina Meybodi
Numerische und analytische Berechnungen zur Erdbebenbemessung von Böschungen, Hassan AlKayyal
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Herle, Ivo. "Ohde-Kolloquium 2018: Aktuelle Themen der Geotechnik." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A31126.
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Das Ohde-Kolloquium 2018 mit der traditionellen Überschrift — Aktuelle Themen in der Geotechnik – wird wieder in Zusammenarbeit mit der Bundesanstalt für Wasserbau an der Technischen Universität Dresden veranstaltet. Damit werden die beiden Wirkungsstätten von Professor Johann Ohde gewürdigt, mit denen er seine Lehr- und Forschungstätigkeit verknüpft hat.
Die Beiträge des diesjährigen Kolloquiums können grob in drei Themengruppen unterteilt werden:
• Bodenverhalten
• Feld- und Modellversuche
• Numerik und Anwendungen
Die meisten Themen sind eng mit der Komplexität des Bodenverhaltens verbunden. In Abhängigkeit ihres Zustandes und einer aufgebrachten Belastung können Böden verschiedene Zustandsformen – gasförmig, flüssig und fest. Insbesondere der Übergang vom Feststoff zur Flüssigkeit (Bodenverflüssigung, hydraulischer Grundbruch, usw.) ist mit einem hohen Schadenspotenzial für Bauwerke und Menschen verbunden. Modellversuche im Labor und Monitoring im Feld sind für das Verständnis und die rechtzeitige Erkennung der Gefahrenzustände unumgänglich. Inwieweit die jetzigen Prognosen ausgereift sind, zeigen die numerischen Berechnungen für ausgewählte Anwendungen.:Bewertung von Scherversuchen aus Vergleichsuntersuchungen an feinkornigem Boden -- Erik Schwiteilo, Ivo Herle
Experimentelle Untersuchungen zur Rissinitiation hydraulisch belasteter feinkörniger Böden -- Helen Günther
Verdichtung und Zustandsbeschreibung gemischtkörniger Böden -- Carsten Lauer, Jens Engel
Zur Strukturentwicklung granularer Materialien in Scherversuchen -- Max Wiebicke, Edward Andò, Gioacchino Viggiani, Ivo Herle
Ein erweitertes Bounding Surface Modell für die Anwendung auf allgemeine Spannungspfade im Sand -- Katharina Bergholz
Anwendung der Dimensionsanalyse zur Untersuchung des Erosionsdurchbruches in feinkornigen Boden -- Johannes Welsch, Ivo Herle
Laborversuche und Berechnungen zur Ermittlung der wirksamen Wandschubspannungen im Hole-Erosion-Test zur Bestimmung der Erosionsparameter bindiger Böden -- Manuel Hark
Beurteilung der Verflüssigungsneigung grobkörniger Böden -- Bozana Bacic
Untersuchungen zur Gebrauchstauglichkeit der Gründungen von Offshore-Windenergieanlagen -- Torsten Wichtmann
1g Modellversuche mit granularen Säulen in organischen Böden -- Marcel Ney, Frank Rackwitz
Bodenverdichtung - Experimentelle und numerische Untersuchungen -- Holger Pankrath
Herausforderungen für die Spezialtiefbau-Forschung -- Wolfgang Wehr
Zur Prognose von Ersatzfedersteifigkeiten von Tiefgründungssystemen am Beispiel der Itztalbrücke -- Thomas Meier
Dynamische numerische Berechnungen zur Bewertung der Standsicherheit von Erddämmen unter Erdbebeneinwirkung -- Jamal Hleibieh, Ivo Herle
CFD Simulation von Fluidstromung in Gesteinskluften mit OpenFOAM -- Maxim Finenko, Heinz Konietzky
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Machů, Michal. "Návrh založení objektu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372143.
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The subject of this work is a proposal of foundation, followed by an assessment for a production hall. Options will be discussed and compared against each other. The premises are situated in an area where great layers of gravel are found. A project of foundations founding will be performed according to Eurocode 7. Designing of geotechnical constructions which are based on given characteristic of presented soils. As a part of this work also is an appropriate drawing documentation.
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Rabaiotti, Carlo. "Inverse analysis in road geotechnics /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18135.
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Iravani, Said. "Geotechnical characteristics of Penticton silt." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0007/NQ39544.pdf.
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Dada, Yunusa Musa. "Geotechnical interpretation of soil surveys." Thesis, University of East Anglia, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327803.
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Ouyang, Yue. "Geotechnical behaviour of energy piles." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708099.
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Holt, Daniella Godinho Abreu. "Sustainable assessment for geotechnical projects." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/3034/.
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Geotechnical engineering has a crucial role to play in enhancing sustainability due to its pivotal role in the construction process where potentially impacts are highest. Currently, there is a lack of methodologies for assessing geotechnical projects that truly encompass the three core pillars of sustainability. A robust system is required which offers an holistic approach that is both flexible and easily understood, whilst not being biased towards rewards or is prohibitively costly. In addition, ‘tool fatigue’, whereby a system is generated but never used, must be avoided. After a detailed evaluation of the systems available, the SPeAR® framework was selected. Following detailed discussion with a variety of practitioners, the methodology was significantly adapted to make it applicable to geotechnical problems and ensure that geotechnical engineers can understand and use it with relatively ease. The new version, called ‘GeoSPeAR’ in this thesis, allows for greater communication between masterplanning and geotechnical engineering via their common base, thus avoiding a potential barrier to greater adoption of more sustainable practices through the construction cycle. Three case studies demonstrated the assessment of the ‘GeoSPeAR’ methodology. These showed the practical application of the system and how this effectively supports geotechnical engineers in embedding sustainability into projects.
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Chandarana, Upasna Piyush, and Upasna Piyush Chandarana. "Optimizing Geotechnical Risk Management Analysis." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/625550.
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Mines have an inherent risk of geotechnical failure in both rock excavations and tailings storage facilities. Geotechnical failure occurs when there is a combination of exceptionally large forces acting on a structure and/or low material strength resulting in the structure not withstanding a designed service load. The excavation of rocks can cause unintended rock mass movements. If the movement is monitored promptly, accidents, loss of ore reserves and equipment, loss of lives, and closure of the mine can be prevented. Mining companies routinely use deformation monitoring to manage the geotechnical risk associated with the mining process. The aim of this dissertation is to review the geotechnical risk management process to optimize the geotechnical risk management analysis. In order to perform a proper analysis of slope instability, understanding the importance as well as the limitations of any monitoring system is crucial. Due to the potential threat associated with slope stability, it has become the top priority in all risk management programs to predict the time of slope failure. Datasets from monitoring systems are used to perform slope failure analysis. Innovations in slope monitoring equipment in the recent years have made it possible to scan a broad rock face in a short period with sub-millimetric accuracy. Instruments like Slope Stability Radars (SSR) provide the quantitative data that is commonly used to perform risk management analysis. However, it is challenging to find a method that can provide an accurate time of failure predictions. Many studies in the recent past have attempted to predict the time of slope failure using the Inverse Velocity (IV) method, and to analyze the probability of a failure with the fuzzy neural networks. Various method investigated in this dissertation include: Minimum Inverse Velocity (MIV), Maximum Velocity (MV), Log Velocity (LV), Log Inverse Velocity (LIV), Spline Regression (SR) and Machine Learning (ML). Based on the results of these studies, the ML method has the highest rate of success in predicting the time of slope failures. The predictions provided by the ML showed ~86% improvement in the results in comparison to the traditional IV method and ~72% improvement when compared with the MIV method. The MIV method also performed well with ~75% improvement in the results in comparison to the traditional IV method. Overall, both the new proposed methods, ML and MIV, outperformed the traditional inverse velocity technique used for predicting slope failure.
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Faria, P. de D. "Shakedown analysis in geotechnical engineering." Thesis, Swansea University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636956.
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Many problems in geotechnology are concerned with the response of earth materials to cyclic loads. These loads are either generated by forces of nature such as sea waves, currents, winds, and earthquakes or as a consequence of engineering operations such as blasting, pile driving and rotating machines. For most design purposes related to static loads it is logical to use as a design basis either the elastic range where no plastic deformation occurs or the plastic range, in which large plastic deformation can occur. However, when cyclic loading is involved few design methods are available since a pattern for the response of the body to cyclic loads is not well known. When a body is subjected to cyclic loading some modes of adaptation or non adaptation can occur as a response to the loads such as elastic shakedown, alternating plasticity and ratchetting. Despite its extensive use in structural problems very few applications of the shakedown approach to soil masses can be found in literature. Therefore the present work aims to extend the elastic shakedown concepts to geotechnical problems. Initially the shakedown concepts are introduced, its theorems and their importance for geomechanical problems are highlighted. Later the use of Melan's static shakedown theorem for the present study is shown. Shakedown analyses of plane stress and plane strain problems are presented. In this study the shakedown formulation is based on the concept of a residual stress field obtained by means of a numerical formulation using a visco-plastic algorithm. Two numerical codes linked with a mesh generator were implemented as tools for the treatment of the shakedown problems. Numerical examples and applications are shown to illustrate the usefulness of the present approach.
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Bundy, Stephen. "Geotechnical properties of chalk putties." Thesis, University of Portsmouth, 2013. https://researchportal.port.ac.uk/portal/en/theses/geotechnical-properties-of-chalk-putties(29af3b60-00c7-4507-8c17-24b50f5cf8b5).html.
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Chalk putties are common in Southern England, occurring naturally and as a result of earthworks in intact chalk. The ease and readiness with which intact chalk breaks down into putty makes establishing a good geotechnical profile of the material necessary. A review of literature indicates that previous laboratory studies on chalk putties are limited, and that testing of the material has proven difficult using standard procedures. This study initially quantifies index parameters such as Atterberg limits, thixotropy and particle size distribution before considering susceptibility to age-related strength gains and shear strength-strain dependency so that subsequent shear test data can be normalised. Contrary to literature, age-related strength gains were found to be minor, whilst shear strength-strain dependencies were found to be significant. Large strain tests in ring shear apparatus (following recommended test procedures) found non linearity in the drained shear failure envelopes, with effective friction angles (Ø') increasing with strain. This non linearity is explained by sample grading evolution. Using these findings the study develops new preparation and testing methodologies to create ‘identical soils’ of known stress history. Testing in a computer governed stress path cell (using ‘Triax’ software) found that chalk putty behaves as a contractive material, ‘wet’ of its critical state, exhibiting failure by liquefaction for mean effective stresses (p') lower than 200kPa. Pre and post yield permeability values in the range 2.5-13 x 10-9m/s were recorded with state parameters indicating a constant a pre shear p' of between 0 and 400kPa.
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Černý, Vít. "Optimalizace geotechnického průzkumu a monitoringu při navrhování a provádění podzemních staveb." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-234559.
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The presented thesis focuses primarily on issues of geotechnical survey and geotechnical monitoring for underground line constructions. It deals with the current practice of geotechnical survey and monitoring. Based on the knowledge gained from specific buildings in the Czech Republic (Královopolské tunnels, tram tunnel Žabovřeská) and based on the author's practical local and foreign experience submits suggestions regarding their mutual optimization in order to improve outputs and reduce financial costs.
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Plaßmann, Bernd. "Zur Optimierung der Meßtechnik und der Auswertemethodik bei Pfahlintegritätsprüfungen /." Braunschweig : Inst. für Grundbau und Bodenmechanik, TU Braunschweig, 2002. http://www.gbv.de/dms/bs/toc/342452045.pdf.
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Schulz, Thomas. "Einfluss von in situ-Randbedingungen auf die Feststoffeigenschaften von Dichtwandmassen /." Braunschweig : Inst. für Grundbau und Bodenmechanik, TU Braunschweig, 2002. http://www.gbv.de/dms/bs/toc/356371492.pdf.
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Čechová, Simona. "Vyhodnocení zatěžovacích zkoušek pilot z tryskové injektáže." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2021. http://www.nusl.cz/ntk/nusl-433418.
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The master thesis consists of a theoretical part and a practical part. In the theoretical part jet-grouting technology is described briefly. Mechanical properties of jet-grouted piles were characterized. Various estimation methods of ultimate pile bearing capacity are described in this thesis – analytical calculation of ultimate bearing capacity for bored piles and estimation of ultimate pile bearing capacity by analysis of load-displacement curve defined by CHIN (1970; 1972). Load transfer method for piles and hyperbolic load-transfer curve are introduced. As a part of the load-trasfer method analysis, a method of estimating ultimate pile shaft friction called beta method is defined. In the practical part were evaluated several static load tests of jet-grouted piles and were constructed their load-displacemnt curves. Then reverse analysis of the results from static load tests was performed using load-transfer method. Then ultimate pile bearing capacity was estimated using analytical calculation of pile bearing capacity for bored piles and using analysis of load-displacement curve with method by CHIN (1970; 1972). By evaluation of load transfer method and beta method ultimate shaft resistence for each pile was estimated. Results and load-displacement curves were compared.
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Ng, Iok Tong. "Geotechnical site characterization based on SPT." Thesis, University of Macau, 1999. http://umaclib3.umac.mo/record=b1445031.
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Han, Fa Sen. "Geotechnical Behaviour of Frozen Mine Backfills." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20250.
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This thesis presents the results of an investigation of factors which influence the geotechnical properties of frozen mine backfill (FMB). FMB has extensive application potential for mining in permafrost areas. The uniaxial compressive strength (UCS) of hardened backfill is often used to evaluate mine backfill stability. However, the deformation behaviour and stiffness of the FMB are also key design properties of interest. In this thesis, uniaxial compressive tests were conducted on FTB and FCPB samples. Information about the geotechnical properties of FMB is obtained. The effects of FMB mix components and vertical compression pressure on the geotechnical properties of FMB are discussed and summarized. An optimum total water content of 25%-35% is found in which the strength and the modulus of elasticity of the FTB are 1.4-3.2 MPa and 35-58 MPa, respectively. It is observed that a small amount (3-6%) of cement can significantly change the geotechnical properties of FTB.
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Ledin, Jonatan, and Tobias Åhsberg. "Transition to the Geotechnical European Standards." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-93629.
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On January first 2011, the National Board of Housing, Building and Planning - Boverket, are adopting the European design rules of geotechnics. This will make the overall Swedish transition more definite. Geotechnical engineers and field-/laboratory technicians will have to conform their reporting routines to the new legal framework that the Eurocode suggests. The new standard will lead towards a better quality of the performed work, the reason being higher demands on the reports content and availability. It will also foster the free market, both nationally as well as internationally. The report system currently used will be replaced by a new system consisting of five different document types. The document types are: 1. Field Report 2. Test Report 3. Ground Investigation Report 4. Design Report 5. Tender Request Documentation Comparing the present system with the new, there is a certain extent of conformance in content. However, in terms of documentation, the new reporting model places higher demands on the geotechnical engineers and technicians. The reporting model will provoke a more elaborate and comprehensive communication between field-, laboratory- and desk units. The responsibilities of laboratory- and field technicians will increase in terms of quality and documentation in field investigation. Not only will the increased requirements in reporting affect the routines of field- and laboratory staff. In order to receive sufficiently exhaustive material that meets the requirements of the Eurocode, geotechnical engineers will have to be more precise in their informational inquiry. They have to support the technicians in distinguishing the additional information that has to be accounted for in the new document types. The Eurocode transition need not increase the turnaround times, and the design cost of geotechnical projects dramatically. But in order to maintain the current design costs, entrepreneurs in the industry have to adapt to the new game rules of European geotechnics.<br>Den första januari 2011 blir den Svenska övergången till Eurocode inom Geoteknik mer definitiv i samband med att Boverket antar det nya regelverket. Geotekniska handläggare och fält-/labtekniker får i och med övergången ett nytt ramverk för rapportering och redovisning att arbeta efter. Den nya standarden kommer leda till en förbättrad kvalité på arbetet då kraven på redovisningens innehåll samt tillgänglighet ökar. Den kommer även befrämja den fria marknaden, både nationellt och internationellt. Det rapporteringssystem som i dagsläget används kommer ersättas av ett nytt som innefattar fem olika dokumenttyper. Dessa dokumenttyper är: 1. Underlagsrapport 2. Försöksrapport 3. Markteknisk undersökningsrapport 4. Projekterings PM 5. Förfrågningsunderlag. Innehållet i de nya rapporttyperna knyter i många avseenden an till innehållet i de som används idag. Den nya rapporteringsmodellen ställer dock ur ett dokumenteringsperspektiv högre krav på handläggare och tekniker. Modellen kommer provocera fram en mer detaljerad och innehållsrik kommunikation mellan fält, laboratorium och kontor. Tanken är att personer som inte varit inblandade i ett projekts tidigare skeden skall kunna ta till sig alla förutsättningar med hjälp av de nya dokumenten. Mer ansvar kommer läggas på lab- /fälttekniker vad avser kvalitet och dokumentation i projektens undersökningsfas. För att man från fält och lab. skall kunna ta fram rätt underlag till fortsatt projektering måste handläggare tydligare precisera vilken typ av information, utöver den traditionella, som måste finnas med i resultatredovisningen. För att övergången inte i för stor utsträckning skall påverka handläggningstid och projekteringskostnad måste företagen anpassa sin verksamhet efter de nya spelregler som Eurocode medför.
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He, Chunmei. "GEOTECHNICAL CHARACTERIZATION OF LUNAR REGOLITH SIMULANTS." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1269272964.
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Thesis (Doctor of Philosophy)--Case Western Reserve University, 2010<br>Department of Civil Engineering Title from PDF (viewed on 2010-05-25) Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center
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Pelkey, Shaun G. "Geotechnical properties of municipal solid waste." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ30016.pdf.
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Hong, Hanh N. "Geotechnical applications of crumbed tire rubber." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0002/MQ59818.pdf.
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Chen, Daqin 1958. "Geotechnical characterization of an alluvial fanglomerate." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276713.
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The Department of Energy (DOE) has recently announced that the Superconducting Super Collider (SSC) will soon be built somewhere in the United States. Preliminary geophysical studies indicate that the Sierrita site 35 miles southwest of Tucson has geological conditions that would facilitate construction of the SSC. The Maricopa site southwest of Phoenix is also one of the two potential sites in Arizona. However, several additional geotechnical investigations were required to convincingly demonstrate the suitability of these two locations. The present research program identified the geotechnical properties of the soils at the two sites through various levels of laboratory and field testing. The significance of these results are discussed and recommendations are given.
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Smith, James Seymour. "Scaled geotechnical centrifuge modelling of gelifluction." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/54676/.
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This thesis describes the laboratory modelling of gelifluction processes using the geotechnical centrifuge technique. Thirteen 1/10 scale planar slope models were frozen from the surface downwards on the laboratory floor and thawed, also from the surface downwards, under gravitational acceleration of 10 gravities (approximately 98.1 ms'2). A natural sandy silt soil from Quaternary periglacial slope deposits collected in SW England formed the base test material and slope models at gradients 4, 8, 12 and 16 were constructed using this soil. 10% and 20% by weight increments of glaciolacustrine silt and Kaolinite clay were added to the natural soil and a series of slope models were constructed at gradients of 4, 8, and 12 using these soils. Each slope model was subjected to four cycles of freezing and thawing except for the four slope models that underwent rapid slope failure. During thaw, soil temperatures and pore water pressures were recorded continuously, together with soil thaw settlement and surface displacement. Following each experiment, models were sectioned to observe displacement columns that showed the profiles of soil movement and allowed volumetric displacements to be calculated. It was shown that thaw settlement and slope gradient strongly affected the rate of surface movement and the subsurface profile of movement. Increasing slope gradient generated greater amounts of subsurface and surface movement as a function of increased gravitational shear stress. Thawing ice lenses inclined parallel to the slope gradient provided localised zones of microshearing in response to localised low frictional resistance. Rates of movement increased between the 4 and 8 models, but a greater increase occurred between the 8 and 12 models. A slope failure was initiated within the 16 slope model. Rates of gelifluction were dominantly influenced by increasing silt content impacting upon the distribution of segregated ice and the reduction of frictional shear strength. Increasing silt content generated high positive porewater pressures commonly in excess of hydrostatic and consequently greater amounts of pre-failure strain. A clear behavioural threshold was identified between the 10% and 20% silt soils, with far greater gelifluction in the latter than the former. Increasing clay content had a less pronounced impact upon rates of gelifluction when compared to increasing silt due to cohesion. Rates of movement increased between the 10% and 20% clay in response to lower shear strength. A sawtooth style of pore pressure response caused by water escape events within the 20% clay prevented maximum potential pressures being achieved and possibly impacted upon the overall rate of gelifluction. A successful simulation of both landsliding and slow mass wasting processes was undertaken and future applications for the technique have been outlined.
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Wint, Joanne. "Geotechnical site investigation of vegetated slopes." Thesis, Nottingham Trent University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429261.
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Ryan, Christopher R. "Geotechnical investigation of Montrose wetland site." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3723.
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Thesis (M.S.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains xii, 191 p. : ill. (some col.), maps (some col.). Vita. Includes abstract. Includes bibliographical references (p. 117-119).
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Chou, Chiung-Wen. "Biomodification of geotechnical properties of sand." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7812.
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Thesis (M.S.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Civil and Environmental Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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WHA, CHAN KOU. "APPLICATION OF ELECTROLEVELS IN GEOTECHNICAL INSTRUMENTATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1999. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1254@1.
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>O surgimento da instrumentação geotécnica se deu entre os
anos de 1930 e 1940 e inicialmente observa-se a utilização
de instrumentos mecânicos e hidraúlicos para essa
finalidade. Entretanto nos últimos anos tem se acentuado a
utilização de equipamentos baseados em princípios
elétricos tais como os extensômetros elétricos resistivos e
os eletroníveis que podem ser acoplados a eficientes
sistemas de aquisição de dados. Há portanto a necessidade
de intensificação de esforços na utilização de técnicas
mais precisas e abrangentes de monitoramento do
comportamento real de obras geotécnicas, tendo em vista o
distanciamento que hoje se constata entre o refinamento,
sofisticação e versatilidade dos métodos computacionais e
numéricos em relação à qualidade, e até mesmo
representatividade das informações oriundas de programas
observacionais na engenharia geotécnica.
A finalidade deste trabalho é verificar a aplicabilidade
dos eletroníveis nos programas de instrumentação geotécnica
e desenvolver procedimentos específicos de montagem,
calibração, instalação e interpretação. Essa técnica de
instrumentação, apesar de consagrada internacionalmente é
ainda de utilização restrita no nosso país. E finalmente
apresenta-se o tratamento de dados realizado com as
informações obtidas no programa de instrumentação das
barragens de Xingó e Tianshegqiao (TSQ-1).<br>Geotechnical instrumentation development, has begin 1930
and 1940 and initialy we
can observe the use of hydhraulic and mechanic instruments
to this purpose. Meanwhile in
the last years it can be observed the increase of the use
these equipaments based on
electrical principle like resistance extensometers and
electrolevels that can be coupled to
efficient system data aquisition. So there is need of the
use of techique more precise and
comprehensive for monitoring actual behaviour of
geotechincal work so the big distance
that there is between refinement, sofistication and
versatility of computacional and numeric
methods in relationship quality and representative
information from observation programs
in the geotechincal engineering, can be shortened.
The main purpose of this research is to verify the
aplication of electrolvel gauges in
geothecnical instrumentation program and to develop
specific procedure of assembly,
calibration, installation and interpretation. This
instrumentation technique in spite of being
internationally established is still of restricted use in
our country. Results obtained in two
large concrete face rockfill dams (Xingo and TSQ-1) are
presented.<br>El surgimento de la instrumentación geotécnica se dió entre los años 1930 y 1940 e inicialmente se observa la
utilización de instrumentos mecánicos y hidraúlicos con tal finalidad. En los últimos años se ha acentuado la
utilización de equipos basados en principios eléctricos tales como los extensómetros eléctricos resistivos y los
electroníveles que pueden ser acoplados a eficientes sistemas de adquisición de datos. Ha por tanto necesidad de
intensificar esfuerzos en la utilización de técnicas más precisas y abarcadoras para el monitoramiento del
comportamiento real de obras geotécnicas; llevando en cuenta el distanciamiento que hoy se constata entre el
refinamiento, sofistificación y versatilidad de los métodos computacionales y numéricos en relación a la calidad, e
incluso representatividad de las informaciones oriundas de programas observacionales en la ingeniería geotécnica.
La finalidad de este trabajo es verificar la aplicabilidad de los electroníveles en los programas de instrumentación
geotécnica y desarrollar procedimientos específicos de montaje, calibración, instalación e interpretación. Esta
técnica de instrumentación, a pesar de consagrada internacionalmente, tienen uso restringido en nuestro país.
Finalmente se presenta el tratamiento de datos realizado con las informaciones obtenidas en el programa de
instrumentación de las Barragens de Xingó y Tianshegqiao (TSQ-1).
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Kim, Carl Chong-Soo. "Geotechnical aspects of recirculating well design." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/44495.
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Smith, Alexander D. "Computerized modeling of geotechnical stratigraphic data." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14360.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1989.<br>Archives copy bound in 1 v.; Barker copy in 2 v.<br>Includes bibliographical references (leaves 246-251).<br>by Alexander Donnan Smith.<br>Ph.D.
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Dobbie, Karen Elizabeth. "Till geotechnics and ice sheet dynamics." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/13666.
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This thesis studies geotechnical properties of former subglacial sediments to establish the conditions found at the base of an ice sheet. Whilst many advances have been made in the theoretical analysis of ice sheet dynamics, little quantitative information exists about the physical processes that occur beneath an ice sheet. These processes depend on the type of surface over which the ice flows and on whether the base of the ice is melting. Until recently, most models of ice sheet flow have assumed that ice moves over a rigid surface as a result of deformation within the ice, or by sliding at its base. It has subsequently become clear that where ice overlies unlithified sediments they can deform, thus contributing to the forward motion of the ice. The basal boundary is difficult to observe directly, however information can be obtained directly by studying the sediments left behind when the ice has retreated. An advancing ice sheet loads the sediments over which it flows. Sediments consolidate in response to this additional load, providing that water can drain from the sediment pores. Sediments underlying a basally melting ice sheet must still allow melt water to drain through them and thus will not consolidate to the same extent as a non-glacial sediment under the same load. The sediments expand on retreat of the ice however they retain a record of the maximum pressure to which they were subjected, known as the preconsolidation pressure. The preconsolidation pressure is assumed to have occurred at the glacial maximum when the ice sheet was in a steady state, however the existence of a meltwater flux means that the preconsolidation pressure preserved is not a simple consequence of the overburden of ice and sediments. A one dimensional drainage model is adopted to investigate subglacial groundwater flow. Melt water is assumed to drain vertically through an upper layer of low permeability sediments into an aquifer. The theoretical distribution of pressure in the one dimensional model is derived and a relationship between the effective pressure gradient, potential pressure gradient and gravitational gradient established.
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Jönsson, Clara, and Linn Larsson. "Kartläggning av kvicklera med hjälp av flygresistivitetsmätningar." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-37057.
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Purpose: One of the major soil problems that the construction industry may face is the presence of a certain type of highly sensitive marine clay, known as quick clay. The quick clay possesses properties that allow the clay to move from being relatively stable to on mechanical impact losing virtually all shear strength and act as a viscous mass. The majority of the Swedish, Norwegian and Canadian landslides, caused by quick clay, have caused significant consequences due to lack of bearing capacity of quick clay. In order to prevent these landslides knowledge about where there is quick clay is required. A large-scale mapping work has therefore been ongoing for a long time. The government has for some time been researching how to streamline mapping work and the result has shown a connection between quick clay attendance and increased resistivity. The purpose of this study is to develop a theoretical framework for areas with higher risk for presence of quick clay based on linking the resistivity to geotechnical properties. Method: The study has mainly applied quantitative data collection methods in the form of data analyzes combined with literature studies. Measurement data used in the study comprise of data collected through geotechnical and geophysical surveys. Literature studies have mainly been supported by reports from previous research in the field. Result: The result of the study points to a variety of geological factors that can give rise to increased risk of quick clay existence such as good permeability, artesian groundwater and uneven mountain subsidence etc. The study also shows a possible link between resistivity and sensitivity. Consequences: The study demonstrates the possibility of linking resistivity to the geotechnical property sensitivity to facilitate and streamline the mapping of quick clay through airborne resistivity measuring. Limitations: The study is limited to studying two research areas in south western Sweden, Strömstad and Lödöse. The study intends to examine the evidence from previous surveys and no further supplementary studies are conducted. The work is also delimited to study the geotechnical and geophysical properties of quick clay (in terms of resistivity). Chemical aspects are not taken into account.<br>Syfte: Ett av de större markproblem bygg- och anläggningsbranschen kan tvingas stå inför är förekomsten av en viss typ av högsensitiv havsavsatt lera, kallad kvicklera. Kvickleran besitter egenskaper som innebär att leran kan gå från relativt stabil till att vid mekanisk påverkan förlora praktiskt taget all sin skjuvhållfasthet och uppträder som en trögflytande massa. Majoriteten av de svenska, norska och kanadensiska lerskred som medfört betydande konsekvenser har varit ett resultat av kvicklerans bristande bärighet. För att förebygga dessa kvickleraskred krävs vetskap om var kvicklera förekommer. Ett omfattande kartläggningsarbete har därför pågått under en lång tid. Staten har under en tid bedrivit forskning för att effektivisera kartläggningsarbetet och resultatet har visat på ett samband mellan kvickleraförekomst och förhöjd resistivitet. Syftet med detta examensarbete är att ta fram ett teoretiskt ramverk för områden med större risk för förekomst av kvicklera baserat på att koppla samband mellan resistivitet och geotekniska egenskaper i form av vattenkvot, sensitivitet och densitet. Metod: I studien har i huvudsak kvantitativa datainsamlingsmetoder i form av dataanalyser tillämpats i kombination med litteraturstudier. Mätdatat som studien omfattar är insamlad via geotekniska och geofysiska undersökningar, litteraturstudierna har främst tagit stöd i rapporter från tidigare forskning inom området. Resultat: Resultatet pekar på en rad olika geologiska faktorer som kan ge upphov till ökad risk för kvickleraförekomst, exempelvis god permeabilitet, artesiskt grundvatten samt ojämn bergunderyta etc. Studien visar även på en möjlig koppling mellan resistivitet och sensitivitet. Konsekvenser: Studien visar på möjligheten att koppla resistivitet till den geotekniska egenskapen sensitivitet för att underlätta och effektivisera kartläggningen av kvicklera genom flygburna resistivitetsmätningar. Begränsningar: Uppsatsen begränsas till att studera två undersökningsområden i sydvästra Sverige, Strömstad och Lödöse. Studien avser granska underlag från tidigare utförda undersökningar och inga ytterligare kompletterande undersökningar har utförts. Arbetet avgränsas till att studera kvicklerans geotekniska egenskaper samt dess resistivitetsegenskaper. Arbetet tar således inte hänsyn till kemiska aspekter.
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Rockaway, Thomas D. "Spatial assessment of earthquake induced geotechnical hazards." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/20038.
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Johnson, Max LeGrand Jr. "Characterization of geotechnical surfaces via stylus profilometry." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/20705.
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Collins, Paul S. "Geotechnical properties of sand/lightweight aggregate mixtures." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ26989.pdf.
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Lemoine, Elise Marie Jeanette Simone. "Modelling sand production in a geotechnical centrifuge." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ48275.pdf.
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