Influência da microestrutura nas propriedades mecânicas e na fragilização por hidrogênio em um aço microligado.

The effect of microbes on the stability of an unsaturated tropical slope

“…However, it is unclear whether these variations are associated with the statistical variability of the properties, since Gonzalez [16] did not reported this information. In order to really appreciate the effects of the MICP on the stability of the slope it is important to separate it from the stability effects of suction.…”

“…The experimental work was carried out by Gonzalez [16]. Undisturbed block samples (0.3 x 0.3 x 0.3m) were collected at 1, 2, 3, 4, and 5m depth in Santa Maria (Federal District, Brazil) in April when the groundwater level was approximately 6m below ground surface.…”

“…This paper analysed the effect of biostimulated MICP on the stability of a slope on a tropical residual soil. Data from an experimental characterisation study [16] that included bulk unit weight, void ratio, shear strength parameters, saturated permeability and soil water retention curves carried out for control and inoculated specimens of a tropical soil from Brasilia, Brazil, was used. The stability of hypothetical slopes with control and inoculated soil properties were assessed considering critical rainfalls of 1 and 2 days for the tropical region using a 'simplified' shear strength criterion formulated in terms of unsaturated cohesion.…”

“…In this light this paper assesses the effect of biostimulated MICP on the stability of a slope on a tropical residual soil. For that, data from an experimental characterisation study carried out for a tropical soil [16] from Brasilia, Brazil, is used. For the assessment of the stability of the slope, two scenarios are considered: a reference one where the soil is not stimulated to produce MICP and a second scenario where the soil is stimulated to produce MICP.…”