A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A SUSTAINABLE TWO-COMPONENT ANNULAR GROUT COMPOSITION AND METHOD FOR GROUTING A TUNNEL ANNULUS
A method and composition are provided for backfilling the annular gap created as a tunnel boring machine advances through the ground. The fill material is comprised of two components that are combined and mixed together just prior to entering the annular gap. The first component is non-cement slurry consisting of a fluidized bed combustion ash such as coal ash. The second component consists of an alkali silicate such as sodium silicate. Additionally, ordinary Portland cement and/or metakaolin can be added to the grout composition.
L'invention concerne un procédé et une composition pour le remblayage de l'espace annulaire créé alors qu'un tunnelier avance dans le sol. Le matériau de remplissage est constitué de deux composants qui sont combinés et mélangés ensemble juste avant l'introduction dans l'espace annulaire. Le premier composant est une bouillie sans ciment constituée de cendres de combustion en lit fluidisé telles que des cendres de charbon. Le second composant est constitué d'un silicate de métal alcalin tel que le silicate de sodium. De plus, du ciment Portland ordinaire et/ou du métakaolin peuvent être ajoutés à la composition de coulis de ciment.
A SUSTAINABLE TWO-COMPONENT ANNULAR GROUT COMPOSITION AND METHOD FOR GROUTING A TUNNEL ANNULUS
A method and composition are provided for backfilling the annular gap created as a tunnel boring machine advances through the ground. The fill material is comprised of two components that are combined and mixed together just prior to entering the annular gap. The first component is non-cement slurry consisting of a fluidized bed combustion ash such as coal ash. The second component consists of an alkali silicate such as sodium silicate. Additionally, ordinary Portland cement and/or metakaolin can be added to the grout composition.
L'invention concerne un procédé et une composition pour le remblayage de l'espace annulaire créé alors qu'un tunnelier avance dans le sol. Le matériau de remplissage est constitué de deux composants qui sont combinés et mélangés ensemble juste avant l'introduction dans l'espace annulaire. Le premier composant est une bouillie sans ciment constituée de cendres de combustion en lit fluidisé telles que des cendres de charbon. Le second composant est constitué d'un silicate de métal alcalin tel que le silicate de sodium. De plus, du ciment Portland ordinaire et/ou du métakaolin peuvent être ajoutés à la composition de coulis de ciment.
A SUSTAINABLE TWO-COMPONENT ANNULAR GROUT COMPOSITION AND METHOD FOR GROUTING A TUNNEL ANNULUS
COMPOSITION DE COULIS DE CIMENT À DEUX COMPOSANTS DURABLE POUR ESPACE ANNULAIRE ET PROCÉDÉ DE CIMENTATION D'UN ESPACE ANNULAIRE DE TUNNEL
MCDONALD MICHAEL (author) / SHORT KELLY PAUL (author) / BERG KENNETH A (author) / RIBEIRO FLAVIO ERNESTO (author) / MORAN JIM (author) / MARINESCU PETER (author) / GUO DAOPING (author)
2022-09-01
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
A SUSTAINABLE TWO-COMPONENT ANNULAR GROUT COMPOSITION AND METHOD FOR GROUTING A TUNNEL ANNULUS
| European Patent Office | 2024
Sustainable two-component annular grout composition and method for use with a tunnel-boring machine
| European Patent Office | 2023
SUSTAINABLE TWO-COMPONENT ANNULAR GROUT COMPOSITION AND METHOD FOR USE WITH A TUNNEL-BORING MACHINE
| European Patent Office | 2022
Back-off type annular grout containing cavity post-grouting device and grouting method
| European Patent Office | 2023
LIGHTWEIGHT GROUT COMPOSITION AND GROUTING METHOD THEREWITH
| European Patent Office | 2016