Ice load prediction for Arctic nearshore zone

Vivatrat, Vitoon; Chen, V.; Bruen, F.J.

doi:10.1016/0165-232x(84)90035-1

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…However, for finding the second experimental parameter, a,@ (for a given i,), a theoretical solution for deep penetration under creep conditions is necessary. Although some sophisticated numerical solutions for deep penetration into elastoplastic materials exist in the literature (e.g., Baligh 1984;Vivatrat et al 1984;Huneault and Ladanyi 1987;Foriero and Ladanyi 1989), the model of an expanding spherical cavity has served well for approximating the deep penetration for quite a number of years. The cavityexpansion theory was first used for that purpose by Bishop et al (1945) in connection with the deep punching of metals.…”

Section: Determination Of Creep Parameters From Cpt Datamentioning

confidence: 99%

Borehole penetration and expansion devices for ice testing

Ladanyi¹

1996

Can. J. Civ. Eng.

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The paper presents two methods for in situ testing of strength and creep properties of ice, together with their theoretical interpretation and typical results. The two methods which are relatively new in this area of application, are the stress-controlled cone penetration test (CPT), and the sharp cone test (SCT). The CPT has been shown in the last few years to be an excellent tool for both ice quality profiling and ice creep and strength properties determination. The test can be used for penetrating vertically through an ice sheet, or laterally into an ice wall in a trench. The SCT is a special kind of borehole-expansion test. The method consists in pushing a smooth, low-angle, conical indentor into a predrilled conical portion of a borehole, which ends with a smaller diameter pilot hole. The creep properties of ice are then deduced from the relationship between the applied load, time, and cone penetration, which is directly related to the hole expansion.RCsumC : On prksente deux mCthodes capables i mesurer sur place la risistance mCcanique et les parambtres de fluage de la glace, ensemble avec leur interpretation thCorique et leurs rCsultats typiques. Ces deux mkthodes, relativement nouvelles dans ce domaine d'application, sont I'essai de pCnCtration au c8ne i charge contrblte, et l'essai au cbne effilC. Dans les dernibres annCes, le premier s'est avtrt comme un excellent outil, tant pour 1'Ctude du profile de la glace, que pour la determination de ses proprittts mCcaniques. On peut utiliser cet essai soit pour la pCnCtration verticale d'un couvert de glace, soit pour la pCnttration lattrale dans la paroi d'une tranchCe ou d'une galerie. La deuxibme mCthode, I'essai au c8ne effilC, reprksent, en effet, une forme speciale de I'essai d'expansion d'un trou de forage. Cette mCthode implique l'enfoncement d'un cbne effilC dans un trou tronconique prCalablement fort, se terminant par un trou pilote de plus faible diambtre. Les parambtres de fluage de la glace sont alors dCduits de la relation entre la charge appliqute, le temps et la ptnttration du c8ne, qui est directement relike avec I'expansion du trou.

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Section: Determination Of Creep Parameters From Cpt Datamentioning

confidence: 99%