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Downhill progressiv...
Downhill progressive landslides in long natural slopes: triggering agents and landslide phases modeled with a finite difference method
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- Bernander, Stig (författare)
- Luleå tekniska universitet,Byggkonstruktion och -produktion,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Kullingsjö, Anders, 1974 (författare)
- Skanska Sweden, Johan på Gårdas gata 5, SE-405 18 Göteborg, Sweden; Chalmers University of Technology, GeoEngineering, SE-412 96 Göteborg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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- Gylland, Anders S. (författare)
- Multiconsult, Sluppen 15, NO-7037 Trondheim, Norway; Norwegian University of Science and Technology, Geotechnical Engineering, NTNU, NO-7491 Trondheim, Norway,Norges teknisk-naturvitenskapelige universitet (NTNU),Norwegian University of Science and Technology (NTNU),Multiconsult ASA
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- Bengtsson, Per-Evert (författare)
- Swedish Geotechnical Institute, Olaus Magnus väg 35, SE-581 93 Linköping, Sweden,Statens Geotekniska Institut (SGI),Swedish Geotechnical Institute (SGI)
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- Knutsson, Sven (författare)
- Luleå tekniska universitet,Geoteknologi,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Pusch, Roland (författare)
- Luleå tekniska universitet,Geoteknologi,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Olofsson, Jan (författare)
- Skanska Sweden, Johan på Gårdas gata 5, SE-405 18 Göteborg, Sweden
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- Elfgren, Lennart (författare)
- Luleå tekniska universitet,Byggkonstruktion och brand,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Olofsson, Jessica, 1975 (författare)
- Skanska Sverige AB
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(creator_code:org_t)
- Canadian Science Publishing, 2016
- 2016
- Engelska.
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Ingår i: Canadian geotechnical journal (Print). - : Canadian Science Publishing. - 0008-3674 .- 1208-6010. ; 53:10, s. 1565-1582
- Relaterad länk:
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https://doi.org/10.1...
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https://ltu.diva-por... (primary) (Raw object)
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https://tspace.libra...
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- A large landslide in Tuve (Gothenburg, Sweden 1977) initiated the development of a model for slope stability analysis taking the deformation-softening of soft sensitive clays into consideration. The model studies triggering agents and five phases in progressive slope failure are identified: (1) in-situ, (2) disturbance, (3) unstable ‘dynamic’, (4) transitory (or permanent) equilibrium, and (5) ‘global’ failure. The clay resistance in these phases may differ widely; mostly due to different rates of loading. Two time dependent failure criteria are defined: (i) the triggering load condition in the disturbance Phase (2), and (ii) the transitory equilibrium in Phase (4), indicating whether minor downhill displacements or a veritable landslide catastrophe will occur. The analysis explains why downhill landslides tend to spread over vast areas of almost horizontal ground further down-slope. The model has been applied to landslides in Scandinavia and Canada. Three case studies are briefly discussed. The model is a finite difference approach, where local downhill deformations caused by normal forces is maintained compatible with deviatory shear deformations above the potential (or the established) failure surface. Software and an easy-to-use spreadsheet are introduced as well as recent developments. See also Video Abstract.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Geoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Geotechnical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
Nyckelord
- landslides in long natural slopes
- progressive failure in different phases
- triggering agents
- effects of time and rate of loading
- two main failure criteria
- invalidity of one singular static load condition
- massive spread over level ground
- finite difference method of analysis
- Progressiva skred
- Defoemationsmjuknande material
- Geoteknik
- Soil Mechanics
- Structural Engineering
- Konstruktionsteknik
- Attraktivt samhällsbyggande (FOI)
- Attractive built environment (AERI)
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