Norwegian Geotechnical Institute (NGI) Digital Archive
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Reduksjon av skader fra boring av peler og ankere – Anbefalinger fra BegrensS¬kade II
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Artificial Neural Network-Based Caprock Structural Reliability Analysis for CO2 Injection Site—An Example from Northern North Sea
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Response of lightly over-consolidated clay under irregular cyclic loading and comparison with predictions from the strain accumulation procedure
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3D Field-Scale Geomechanical Modeling of Potential CO<inf>2</inf> Storage Site Smeaheia, Offshore Norway
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Consolidation of requirements - Analysis of questionnaire
Get PDFThis report presents a synthesis of the results of a questionnaire distributed to personnel from the Norwegian Public Roads Administration (NPRA) and several county road administrations. The aim of the survey was to evaluate the current and potential use of uncrewed aircraft systems (UAS), or drones, for assessing roads exposed to landslide, rockfall, and avalanche hazards. Furthermore, the survey aimed to identify the challenges or barriers to uptake. The recipients of the survey were identified as key persons in their organisations working with avalanche danger in the road sector, either as responsible persons for avalanche danger assessments or as operators/managers of avalanche-prone roads. Results from a total of 36 respondents to the questionnaire are summarized and some recommendations are proposed.The Norwegian Research Council, Project: 32103
Undrained Shear Strength of Overconsolidated Clay
Get PDFIt has been known for a long time now that in soft and sensitive clays undrained failure occurs apparently before the full friction angle has been mobilized. The main object of this paper is to clarify the importance of deformations in the process of mobilizing undrained shear strength. This has resulted in an improved understanding of the failure process, and made it possible to express undrained shear strength for this type of clays in terms of effective stresses and a set of effective shear strength parameters, friction and attraction. The study made it possible to determine the relationship between the coefficient of earth pressure at rest K0, the undrained shear strength su and the overconsolidation ratio OCR during cycles of consolidation, unloading and reloading. The determinations, done both analytically and graphically, were done for a typical low plasticity clay, and the results compared with published data. For comparison, laboratory test results for a somewhat stiffer and dilating offshore clay are also included in this paper
Måling av injeksjonsresultat med vanntapsmålinger i tunnel
Get PDFForsøk ved Fornebubanens hovedtunnel har demonstrert at vanntapsmålinger ved stuff kan gjøres enkelt og effektivt, med bruk av lett utstyr. Vanntapsmålingene viser lavt vanntap og meget tett bergmasse etter 2-stegs injeksjon ved alle tre stuffer. Vanntapsmålingene egner seg til å utføre rask måling av hydraulisk konduktivitet, enten det er med hensikt å måle in-situ oppsprekking av berget, å bestemme injeksjonsmetodikk eller det er å undersøke/kontrollere injeksjonsresulta
Deliverable D3.2. Work Package 3 – Hydrogeological methods, drainage and grouting
No full textThis report contains the master's thesis from Helene Stav with title "Grunnvannsmodellering som et verktøy for å estimere setninger rundt byggegroper" provided in Appendix A.Norges forskningsrå