Norges Geotekniske Institutt: Nye registreringer

Viser treff 101-120 av 1234

    • Ingeniørgeologiske vurderinger og kostnadsestimat for tunnelalternativ 

      Langeland, Henrik; Holmøy, Kristin Hilde; Gjengedal, Sondre; Ask, Kjetil (NGI-Rapport;20180662-08-R, Report, 2020-12-21)
      NGI er engasjert av NVE for å foreslå hvordan man kan bygge en dreneringstunnel med mål om å drenere Åknes fjellside. Hovedmålet er å foreslå forslag til konsept, og deretter utføre et kostnadsestimat. I foreliggende ...

    • Data report core logging KH-02-2017 

      Langeland, Henrik (NGI-Rapport;20180662-02-R, Report, 2019-01-18)
      KH-02-17 is a core drilled bore hole in the upper section of the Åknes rock slope. The bore hole is 300 meter deep, and was core drilled during September-October in 2017. Geodrilling AS performed the core drilling on ...

    • Datareport corelogging KH-01-2018 

      Langeland, Henrik (NGI-Rapport;20180662-03-R, Report, 2019-02-11)
      KH-01-18 is a core drilled bore hole at the west flank in the Åknes rock slope. The bore hole is 222.6 meter deep, and was core drilled during July to August 2018. Geodrilling AS performed the core drilling on assignment ...

    • Use of numerical modelling when designing a full-scale field test of landfill top covers 

      Ånes, Eivind Wiik; Ritter, Stefan; Okkenhaug, Gudny (Lecture, 2023)
      Landfill closures typically include cover systems with a low-permeable barrier to limit the flow of water to and from the waste to minimize contamination of the surrounding environment. Commonly the lowpermeable barrier ...

    • Data report core logging KH-02-2018 

      Langeland, Henrik (NGI-Rapport;20180662-04-R Rev. 1, Report, 2019-02-04)

    • Datareport corelogging KH-01-2017 

      Langeland, Henrik (NGI-Rapport;20180662-01-R, Report, 2018-11-29)

    • Input to data report on hydraulic investigations in boreholes - from 2017 and 2018 

      Langeland, Henrik (NGI-Rapport;20180662-01-TN Rev. 1, Report, 2020-03-27)
      This technical note is revised and include a summary of methodology and results from packer tests in 2017 and 2018 boreholes. The packer tests were performed with both single step pressure tests and 5 step pressure ...

    • Coupled hydro-mechanical stability analysis of Åknes rock slope 

      Shabanimashcool, Mahdi (NGI-Rapport;20180662-07-R, Report, 2020-12-18)
      Stability of Åknes rock slide was assessed by coupled hydro-mechanical numerical analysis. The analysis was carried out by considering explicitly the rock joints network and the sliding planes. Numerical analysis shows ...

    • Sustainable impermeable landfill barriers: The potential of using geological waste and surplus masses 

      Ritter, Stefan; Ånes, Eivind Wiik; Hovland, Kristin; Stridal, Ann-Cathrin; Hansen, Harald; Henriksen, Thomas Jolstad; Okkenhaug, Gudny (Lecture, 2023)
      This study investigated the potential to reuse excavated cement stabilised clay (CSC) and press filter residual (PFR) as impermeable landfill barriers. First, laboratory experiments including particle size distribution, ...

    • Monitoring of displacements in the Åknes rock slope 

      Shabanimashcool, Mahdi; Langeland, Henrik; Holmøy, Kristin Hilde (NGI-Rapport;20180662-05-R, Report, 2020-06-11)

    • Assessing potential building damage caused by leakage to urban tunnels 

      Langford, Jenny; Ritter, Stefan; Lysdahl, Asgeir Olaf Kydland; Ånes, Eivind Wiik; Piciullo, Luca (Peer reviewed; Journal article, 2023)
      Building damage is a major risk for urban tunnelling. In areas with soft soil conditions, water ingress to bedrock tunnels can cause significant pore pressure reduction, consolidation settle-ments and damage to nearby ...

    • Effects of fines content in numerical simulation of CPTu in silty sands 

      Nagula, Sparsha Sinduri; Jostad, Hans Petter; Blaker, Øyvind (Lecture, 2023)
      The Cone Penetration Test (CPTu) does not measure soil properties directly; rather, it measures cone resistance, sleeve friction and pore water pressure, that correlated with laboratory test data, allow estimation of soil ...

    • Seabed structures and foundations related to deep-sea resource development: A review based on design and research 

      Rui, Shengjie; Zhang, Haojie; Xu, Hang; Zha, Xing; Xu, Mengtao; Shen, Kanmin (Journal article, 2023)
      The deep‐sea ground contains a huge amount of energy and mineral resources, forexample, oil, gas, and minerals. Various infrastructures such asfloatingstructures, seabed structures, and foundations have been developed to ...

    • Calculation of soil volume loss caused by drilling of anchors 

      Sandene, Thomas; Lande, Einar John; Nøst, Hilde Aas (Lecture, 2023)
      Accurate prediction of ground settlements related to deep supported excavations or foundation works are key in risk assessments of vulnerability of neighboring assets. Several studies show that rotary percussive duplex ...

    • A Framework for Mooring and Anchor Design in Sand Considering Seabed Trenches Based on Floater Hydrodynamics 

      Rui, Shengjie; Xu, Hang; Teng, Long; Xi, Chen; Sun, Xingye; Zhang, Haojie; Shen, Kanmin (Journal article, 2023)

    • Accounting for effects of cyclic loading in design of offshore wind turbine foundations 

      Jostad, Hans Petter; Liu, Haoyuan; Sivasithamparam, Nallathamby (Lecture, 2023)
      In the design of foundations for offshore structures, it is generally important and required to consider the effects of cyclic loading caused by waves and wind. Therefore, NGI has developed a framework since the early 1970s ...

    • Norsk-islandsk samarbeid om snøskred 

      Nordal, Anne Grete (Journal article, 1996)
      Bade Norge og Island har boligområder som er svært skredutsatt om vinteren. Noen ganger får skredene katastrofale følger. I januar 1995 gikk det et stort snøskred pa tettstedet Sudavik på Island. 15 mennesker omkom. I ...

    • Applied Avalanche Research in Norway: Fonnbu 50-year celebration 

      Gisnås, Kjersti; Issler, Dieter; Hancock, Holt (NGI-Rapport;20230100-02-R, Research report, 2023-11-10)
      NGI’s avalanche research station at Strynefjellet in western Norway was officially opened in October 1973, and in September 2023 NGI and the AARN project invited to a 3- day celebration in Stryn. The aim of the celebration ...

    • GIS-aided avalanche warning in Norway 

      Jaedicke, Christian; Syre, Egil; Sverdrup-Thygeson, Kjetil (Journal article, 2014)
      Avalanche warning for large areas requires the processing of an extensive amount of data. Information relating to the three basic requirements for avalanche warning – knowledge of terrain, the snow conditions, and the ...

    • Reliability of sampling designs for spatial snow surveys 

      Kronholm, Kalle; Birkeland, Karl W. (Journal article, 2007)
      Spatial patterns are an inherent property of most naturally occurring materials at a large range of scales. To describe spatial patterns in the field, several observations are made according to a certain sampling design. ...