2015
DOI: 10.1139/cgj-2015-0212
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Discussion of “Field investigation of the axial resistance of helical piles in dense sand”

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Cited by 17 publications
(10 citation statements)
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“…This may be a result of the simplification of wished-inplace simulation as the upper helical plates in the field case may cause a reverse bearing capacity mechanism propagating up towards the surface, which may pass through soil disturbed by the installation process. Interestingly, though, Mosquera et al (2015) undertook numerical modelling of a single plate screw pile subjected to tensile uplift and found that the upward shallow failure mechanism was defined by the zone of soil swept by the plate during installation, leading to a cylindrical failure mechanism shearing against undisturbed soil rather than the more normally assumed wider uplift type bearing capacity mechanism. This then limits the effect of disturbance of soil above the plate and is more consistent with the multiple flange cylindrical mechanism that is induced by the optimised plate spacing used in the current study.…”
Section: 3mentioning
confidence: 99%
“…This may be a result of the simplification of wished-inplace simulation as the upper helical plates in the field case may cause a reverse bearing capacity mechanism propagating up towards the surface, which may pass through soil disturbed by the installation process. Interestingly, though, Mosquera et al (2015) undertook numerical modelling of a single plate screw pile subjected to tensile uplift and found that the upward shallow failure mechanism was defined by the zone of soil swept by the plate during installation, leading to a cylindrical failure mechanism shearing against undisturbed soil rather than the more normally assumed wider uplift type bearing capacity mechanism. This then limits the effect of disturbance of soil above the plate and is more consistent with the multiple flange cylindrical mechanism that is induced by the optimised plate spacing used in the current study.…”
Section: 3mentioning
confidence: 99%
“…Portanto, a estimativa da redução desses fatores devido aos efeitos de instalação é essencial para a previsão adequada da capacidade de carga à tração de ancoragens helicoidais. Tsuha et al (2012), Weech e Howie (2012), Bagheri e El Naggar (2013), Wang, Merifield e Gaudin (2013), Mosquera et al (2015), Tsuha, Santos Filho e Santos (2015), e Lutenneger e destacam a importância dos efeitos de instalação na capacidade de carga à tração de ancoragens helicoidais. Porém, ainda existem muitas questões sem resposta a respeito desse efeito.…”
Section: 1unclassified
“…A quantidade e o diâmetro das hélices são determinados de modo a atender a capacidade de carga definida em projeto, considerando-se as características do solo (TSUHA, 2007 CLEMENCE, 1989;GAVIN;DOHERTY;TOLOOIYAN, 2014;SANTOS FILHO, 2014;MOSQUERA et al, 2015;etc.). Devido a este efeito, existe um alto nível de incertezas na estimativa da capacidade de carga do sistema ancoragem-solo, e na determinação dos parâmetros do solo a serem utilizados em estudos sobre o comportamento de ancoragens helicoidais.…”
Section: Ancoragens Helicoidais 21unclassified
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