Breaching of levees: An erosion model that takes into account the soil tensile strength

Liu, Z; Bonelli, Stéphane; Mercier, Fabienne

doi:10.1201/b17703-52

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Chu et al [19] used MICP technology to improve sandy soils to form a weakly permeable crust layer, which served the purpose of enhancing impermeability in engineering. Liu Lu et al [20] used a microbial curing method to treat dikes, and the experimental results showed that the treated dikes improved the erosion resistance. Li Chi [21] used microbially induced calcium carbonate precipitation (MICP) technology combined with adsorbent materials to cure/stabilise the remediation of Zn-Pb composite heavy metal contaminated soil, revealing the remediation mechanism of MICP technology to treat Zn-Pb heavy metal contaminated soil.…”

Section: Introductionmentioning

confidence: 99%

Fibre-Microbial Curing Tests and Slope Stability Analysis

Jiang

Zhou

2023

Applied Sciences

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In response to the deformation resistance deficiency and poor toughness characteristics of soil after microbial curing, a combination of fibre reinforcement technology and microbial curing technology was used to conduct microbial curing tests using basalt fibres and denitrifying bacteria. In this paper, the effects of fibre on the strength and toughness of soil consolidation were analysed by unconfined compressive strength test and direct shear test, and the stability of reinforced slope was analysed by numerical simulation. The results show the following. (1) Basalt fibre can effectively improve the characteristics of brittle damage of microbially consolidated soil while increasing the compressive and shear strength. (2) Fibre dosing and fibre length have important effects on the mechanical properties of microbially consolidated soil. (3) The appropriate amount of basalt fibre can promote the generation of calcium carbonate. (4) The plastic strain area of the slope decreases after microbial reinforcement and the maximum equivalent plastic stress decreases by 65 kPa.

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Section: Introductionmentioning

confidence: 99%

Fibre-Microbial Curing Tests and Slope Stability Analysis

Jiang

Zhou

2023

Applied Sciences

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Analysis of the filtration processes in soil embankment based on numerical modelling and temperature measurements

et al. 2016

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Abstract. This paper presents analysis of the filtration processes in experimental soil embankment. The analysis is made during flooding experiments. The analysis is based on numerical modelling and temperature measurements. The measurements were performed on experimental embankment, which size is in scale 1:5 comparing to Polish typical river embankments. This experimental embankment was built in a frame of ISMOP project [1]. It was constructed by the NeoSentio company to investigate the influence of sensors installation for the filtration process and structure stability. The embankment was dry in the beginning of the experiment. The flooding and discharging process took about 8 hours. Filtration of water through the embankment caused changes of the inner temperature, which was measured by thermal sensors inside the embankment. Pore pressure sensors registered changes in water level in embankment. Furthermore, 2D numerical modelling in FLAC 7.0 software was performed. The model reflects the geometric and geotechnical attributes of the real embankment. Comparison between measured and modelled temperatures was performed. The model quite well predicts the time when water reach each sensor. But there is a difference in the rate of fall of water level. Modification the parameters of the model allows to fit the modelled data to measured values.

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Breaching of levees: An erosion model that takes into account the soil tensile strength

Cited by 2 publications

References 2 publications

Fibre-Microbial Curing Tests and Slope Stability Analysis

Fibre-Microbial Curing Tests and Slope Stability Analysis

Analysis of the filtration processes in soil embankment based on numerical modelling and temperature measurements

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