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Reforço de solos moles em Deep soil mixing para fundação de aterro

Authors: Sara Rios; António Viana da Fonseca; Sara Sanches; Agostinho Mendonça;

Reforço de solos moles em Deep soil mixing para fundação de aterro

Abstract

O presente artigo refere-se à análise de um aterro sobre solos moles através do programa de elementos finitos Plaxis® comparando a solução implementada (com geodrenos e pré-carga) com uma solução de tratamento em Deep Soil Mixing (DSM). Foram analisadas várias soluções alternativas em DSM, alterando o espaçamento entre as colunas, o tempo de cura, e até a existência ou não de uma plataforma de transferência de cargas. Para cada caso, os assentamentos foram aferidos e comparados verificando se satisfaziam os requisitos do caderno de encargos. Finalmente foi ainda efetuada uma análise de viabilidade económica com comparação do tempo de execução e dos custos associados às várias soluções.

In the present work an embankment on soft soil is analyzed with commercial finite element software (Plaxis® ) in order to compare the solution implemented on site (with drains and preloading) with a soil improvement solution in Deep Soil Mixing (DSM). Several alternative solutions in DSM were studied changing the column spacing, the curing time, as well as the inclusion of a load transfer platform. For each case the settlements were analyzed and compared to evaluate if the necessary requirements in terms of limit values were satisfied. Finally, a cost-benefit analysis was performed focused on the execution time and cost of each solution.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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Green