2017
DOI: 10.5380/rsa.v18i4.52543
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Métodos De Avaliação Da Influência E Contribuição Das Plantas Sobre a Estabilidade De Taludes

Abstract: Resumo:O reforço e estabilização de solos por plantas são facilmente observados na natureza. Entretanto, o uso de plantas (e suas raízes) em obras de Engenharia Natural requer conhecimentos e medições de seus efeitos na estabilidade do solo. O objetivo desta revisão foi abordar e discutir conceitualmente os métodos utilizados para avaliação da influência das raízes sobre a melhoria da resistência mecânica do solo e sua inclusão na análise de estabilidade de taludes. A estabilização de taludes, seja pela reduçã… Show more

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Cited by 8 publications
(4 citation statements)
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“…During cuttings pullout, it can occur intermediate resistance peaks in the characteristic curves of the species, as observed for S. humboldtiana and C. glabratus (Figura 4). This occurs because the roots are not pulled all at the same time and with the same force, causing premature rupture of some roots, having considerable importance in total maximum resistance (MAFFRA et al, 2017b). This behaviour can be related to several factors, such as architecture, inserting angle, root position along the cutting, among others (COPPIN;RICHARDS, 2007).…”
Section: Resistance Test To Vertical Pulloutmentioning
confidence: 99%
“…During cuttings pullout, it can occur intermediate resistance peaks in the characteristic curves of the species, as observed for S. humboldtiana and C. glabratus (Figura 4). This occurs because the roots are not pulled all at the same time and with the same force, causing premature rupture of some roots, having considerable importance in total maximum resistance (MAFFRA et al, 2017b). This behaviour can be related to several factors, such as architecture, inserting angle, root position along the cutting, among others (COPPIN;RICHARDS, 2007).…”
Section: Resistance Test To Vertical Pulloutmentioning
confidence: 99%
“…Live materials are usually composed of plants, cuttings, and seeds, and inert materials by wood, rock, steel, synthetic polymers, and natural fibers (GRAY;SOTIR 1996). Inert materials have more homogeneous properties and more technical information to answer the engineer's needs during project phases in comparison to living materials (MAFFRA et al, 2017;MAFFRA;SUTILI, 2020). Live material properties are more difficult to measure and precisely quantify since genetic and environmental conditions control them.…”
Section: Introductionmentioning
confidence: 99%
“…However, technical and practical information is still insufficient for the analytical needs of soil bioengineering. Furthermore, the main current methods to assess live materials, such as root tensile strength, shear strength, and pullout resistance (GENET et al 2005;WU, 2013;WU et al 2014;MAFFRA et al, 2017;MAFFRA et al, 2019) involve root system extraction, which can be expensive and time-consuming. Ideal methods should be simple, fast, economical, and non-destructive.…”
Section: Introductionmentioning
confidence: 99%
“…A Engenharia Natural consiste em um conjunto de técnicas que combinam materiais construtivos inertes com materiais vivos (plantas), e que podem ser utilizadas para estabilização geotécnica, estabilização hidráulica e controle de erosão superficial (SOUSA; SUTILI, 2017). As plantas utilizadas em Engenharia Natural desempenham várias funções técnicas, funcionando, por exemplo, como sistemas de ancoragem que estruturam e interligam camadas de solo através de sistemas radiculares (MAFFRA et al, 2017a). As plantas, além de estruturarem o solo têm a capacidade de absorver esforços mecânicos, funcionando como barreira física contra as solicitações do fluxo de água e influenciando a rugosidade hidráulica de canais (SOUSA; SUTILI, 2017).…”
Section: Introductionunclassified