Issue |
Rev. Fr. Geotech.
Number 61, 1992
|
|
---|---|---|
Page(s) | 17 - 30 | |
DOI | https://doi.org/10.1051/geotech/1992061017 | |
Published online | 09 October 2017 |
Les domaines d’application du Jet grouting
Jet grouting in construction
BACHY 4. rue H. Sainte-Claire-Deville. 92563 Rueil-Malmaison, France
Différentes méthodes de jet grouting (jet simple, jet double, jet triple) sont utilisées en fonction de l'énergie hydrodynamique nécessaire pour détruire et mélanger le terrain avec un coulis liquide. Elles s'appliquent aussi bien à des traitements de masse que des traitements linéaires ou des inclusions, dans des sols meubles facilement ou difficilement injectables. Les problèmes d'utilisation concernent la définition géométrique et mécanique du résultat obtenu et son contrôle, ainsi que les difficultés d'évacuation des matériaux liquides en excès formés pendant la production.
Abstract
Different methods of jet grouting (single, double, triple jet) are used in construction, depending on the hydrodynamic energy required to dessaggregate and mix the ground with grout. They are used for mass treatment as well as to form jet grout curtains or to obtain isolated columns, and this in various soils, independantly from their groutability with the conventional grouting techniques. Main concerns about the jet grouting process are the geometrical and mechanical definition and control of the end products, and the difficulties on site for the evacuation of the spoiling materials in excess generated during production.
© CFMS-CFGI-CFMR-CFG 1992
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