Norwegian Geotechnical Institute (NGI) Digital Archive: Recent submissions
Now showing items 1-20 of 412
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Factual report - Øysand research site
(NGI-rapport;20160154-08-R, Report, 2020-01-15)As part of the characterization of Øysand Sand site during NGTS project, two main reports are prepared: 1) a factual report (20160154-08-R) and 2) an interpretation report (20160154-09-R) (see figure in the next page). The ... -
Factual Report - Permafrost Research Site
(NGI-rapport;20160154-06-R, Report, 2020-01-01)Two benchmark sites are established near Longyearbyen, Svalbard (78°13’N, 15°28’E) for long-term geotechnical testing and evaluation of field investigation methods in perennially frozen soils (i.e. permafrost). These sites, ... -
Project Execution Manual
(NGI-rapport; 20160154-01-R Rev. 3, Report, 2017-08-23)This project execution manual should be used as a basis for all work performed as part of the Norwegian Geo-Test Sites project (NGTS). The project is based on the reviewed proposal submitted to The Research Council of ... -
Evaluation and Monitoring of Slope Stability in Cold Region: Case Study of Man-Made Slope at Øysand, Norway
(Peer reviewed; Journal article, 2020)Recently, the road and railways infrastructure developments in Norway have led to renewed interests on the geotechnical challenges associated with slope stability under freezing-thawing cycles. Despite the amount of research ... -
Algorithms for intelligent prediction of landslide displacements
(Peer reviewed; Journal article, 2020)Landslides represent major threats to life and property in many areas of the world, such as the landslides in the Three Gorges Dam area in mainland China. To better prepare for landslides in this area, we explored how ... -
Earthquake response of monopiles and caissons for Offshore Wind Turbines founded in liquefiable soil
(Peer reviewed; Journal article, 2020)Monopile has been the most widespread foundation type for Offshore Wind Turbines (OWTs) in shallow waters. Caisson (skirted) foundations have also been evaluated in some projects as an economical alternative. While the ... -
The correlation between pO2 and pCO2 as a chemical marker for detection of offshore CO2 leakage
(Peer reviewed; Journal article, 2020)A controlled CO2 release experiment was carried out in order to mimic unintended leakage of geologically stored CO2, and to study methods for detecting these leak events. The experiment was carried out at 60 m depth in the ... -
Compaction, rock physics and rock properties of sandstones of the Stø Formation: Case study of five wells from the south-western Barents Sea, Norway
(Peer reviewed; Journal article, 2020)Five wells containing Lower-Middle Jurassic sandstones of Stø Formation from the Hammerfest Basin (7120/9–1, 7121/7–1), the Ringvassøy-Loppa Fault Complex (7119/12–1, 7119/12–4) and the Troms-Finnmark Fault Complex (7019/1-1) ... -
On the landslide tsunami uncertainty and hazard
(Peer reviewed; Journal article, 2020)Landslides are the second most frequent tsunami source worldwide. However, their complex and diverse nature of origin combined with their infrequent event records make prognostic modelling challenging. In this paper, we ... -
Throw variations and strain partitioning associated with fault-bend folding along normal faults
(Peer reviewed; Journal article, 2020)Normal faults have irregular geometries on a range of scales arising from different processes including refraction and segmentation. A fault with constant dip and displacement on a large-scale will have irregular geometries ... -
Validation of a ground-based telescope-assisted hyperspectral remote sensor for soil measurements
(Peer reviewed; Journal article, 2020)The utility of the ground-based soil observation laser absorption spectrometer (SOLAS) was demonstrated through spectral reflectance measurements of five soil types during laboratory- and field-based collection. The SOLAS ... -
Hydrogeological characterization of an alpine aquifer system in the Canadian Rocky Mountains
(Peer reviewed; Journal article, 2020)Groundwater storage in alpine regions is essential for maintaining baseflows in mountain streams. Recent studies have shown that common alpine landforms (e.g., talus and moraine) have substantial groundwater storage capacity, ... -
Formulation of non-coaxial plastic dissipation and stress–dilatancy relations for geomaterials
(Peer reviewed; Journal article, 2020)Stress–dilatancy theories play a central role in the modeling of the plastic dissipation of geomaterials. There exist several mathematical frameworks for describing the stress–dilatancy behavior of soils. One of the limiting ... -
Effects of Drilling for Tieback Anchors on Surrounding Ground: Results from Field Tests
(Peer reviewed; Journal article, 2020)A full-scale field test program was carried out to investigate the effects of drilling for tieback anchors on the surrounding ground. The test anchors were drilled from the ground surface through a soft clay deposit and ... -
Effects of rotational submarine slump dynamics on tsunami-genesis – new insight from idealized models and the 1929 Grand Banks event
(Peer reviewed; Journal article, 2020)Sediment slumps are known to have generated important tsunamis such as the 1998 Papua New Guinea (PNG) and the 1929 Grand Banks events. Tsunami modellers commonly use solid blocks with short run-out distances to simulate ... -
Wetting-Drying Response of an Unsaturated Pyroclastic Soil Vegetated with Long-Root Grass
(Peer reviewed; Journal article, 2020)This paper investigates the effect of a long-root grass on the hydraulic response of a partially saturated pyroclastic soil. The work is based on both long-term monitoring under atmospheric conditions and short-term ... -
A multi-spring model for monopile analysis in soft clays
(Peer reviewed; Journal article, 2020)The offshore wind industry in China has seen a rapid development in recent years and is projected to account for half of global yearly installed capacity in the years to come. Monopiles are a popular foundation solution ... -
Mind the Gap: Towards a Typology of Climate Service Usability Gaps
(Peer reviewed; Journal article, 2020)Literature on climate services presents a large diversity of different services and uses. Many climate services have ‘usability gaps’: the information provided, or the way it is visualized, may be unsuitable for end users ... -
Combining CSEM or gravity inversion with seismic AVO inversion, with application to monitoring of large-scale CO2 injection
(Peer reviewed; Journal article, 2020)A sequential inversion methodology for combining geophysical data types of different resolutions is developed and applied to monitoring of large-scale CO2 injection. The methodology is a two-step approach within the Bayesian ... -
Building Deformation Caused by Tunneling: Centrifuge Modeling
(Peer reviewed; Journal article, 2020)This paper investigates the deformation of buildings due to tunneling-induced soil displacements. Centrifuge model tests of three-dimensionally (3D) printed building models subject to a plane-strain tunnel excavation in ...