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BIOGROUT PROPAGATION IN SOILS

Laloui, L. / Fauriel, S.

Summary Microbial Induced Calcite Precipitation (MICP) is an innovative technique for soil grouting in which injected bacteria supplemented with chemicals lead to calcite precipitation in soils. A comprehensive research work is carried out to better understand and describe the phenomenon of miscible and reactive biogrout injection in saturated, deformable soil. A mathematical model accounting for the bio-hydro-mechanical couplings existing between fluid flow, bacterial concentration evolution, exchanges between phases, transport and miscibility is developed.Finite element modelling of column injection tests is carried out to validate the formulation and to demonstrate the potentiality of the developed model.

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BIOGROUT PROPAGATION IN SOILS

Laloui, L. / Fauriel, S.

Summary Microbial Induced Calcite Precipitation (MICP) is an innovative technique for soil grouting in which injected bacteria supplemented with chemicals lead to calcite precipitation in soils. A comprehensive research work is carried out to better understand and describe the phenomenon of miscible and reactive biogrout injection in saturated, deformable soil. A mathematical model accounting for the bio-hydro-mechanical couplings existing between fluid flow, bacterial concentration evolution, exchanges between phases, transport and miscibility is developed.Finite element modelling of column injection tests is carried out to validate the formulation and to demonstrate the potentiality of the developed model.

BIOGROUT PROPAGATION IN SOILS

Laloui, L. / Fauriel, S.

Summary Microbial Induced Calcite Precipitation (MICP) is an innovative technique for soil grouting in which injected bacteria supplemented with chemicals lead to calcite precipitation in soils. A comprehensive research work is carried out to better understand and describe the phenomenon of miscible and reactive biogrout injection in saturated, deformable soil. A mathematical model accounting for the bio-hydro-mechanical couplings existing between fluid flow, bacterial concentration evolution, exchanges between phases, transport and miscibility is developed.Finite element modelling of column injection tests is carried out to validate the formulation and to demonstrate the potentiality of the developed model.

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Title:

BIOGROUT PROPAGATION IN SOILS

Contributors:

Laloui, L. (author) / Fauriel, S. (author)

Published in:

Multiscale and Multiphysics Processes in Geomechanics ; 77-80

Springer Series in Geomechanics and Geoengineering

Publication date:

2011-01-01

Size:

4 pages

ISBN:

978-3-642-19629-4 , 978-3-642-19630-0

ISSN:

1866-8755 , 1866-8763

DOI:

https://doi.org/10.1007/978-3-642-19630-0_20

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

bio-hydro-mechanical modelling , finite element , grouting , transport of bacteria Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Geophysics and Environmental Physics

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