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- Fransson, Lennart, et al.
(författare)
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Armerad is : fältförsök i full skala
- 1983
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Ingår i: Väg- och Vattenbyggaren. - 0042-2177. ; :10, s. 24-25
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Tidskriftsartikel (populärvet., debatt m.m.)
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- Fransson, Lennart, et al.
(författare)
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Brash ice shear properties : laboratory tests
- 1985
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Ingår i: POAC 85. - Hørsholm : Dansk hydraulisk institut. - 8798195018
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Konferensbidrag (refereegranskat)abstract
- According to earlier studies of brash ice covered channels and problems connected with winter navigation laboratory tests have been performed, treating brash ice as a Mohr-Coulomb material cohesion and shear properties have been studied. A shear box, 0. 5 multiplied by 0. 5 m, equipped with a water bag for normal loading, was used. The force required to shear the rubble was determined as a function of normal force, shear rate and ice piece thickness. The test results are analyzed and presented. The results are also compared with results from other studies and the applicability is discussed
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- Fransson, Lennart, et al.
(författare)
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Field investigation of load‑curvature characteristics of reinforced ice
- 1986
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Ingår i: Polartech '86. - Espoo : Technical Research Centre of Finland. - 9513827143 ; , s. 175-196
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Konferensbidrag (refereegranskat)abstract
- Load-deformation characteristics are studied for three types of top reinforcement in a floating ice cover: (a) sand, (b) birch branches and (c) sawn timber. The curvature of the ice cover is measured during application of a constant load. A three-parameter creep model is proposed for the ice deformation. Expressions are deduced for the characteristic lenght and the maximum deflection of the ice cover based on the curvature.
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