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Numerical Analysis of Jet Grout Elements for Braced Excavation in Soft Clay

Ho, C. E. / Hu, S.

Finite element analyses demonstrated that a combination of jet grout block and slab was very effective in controlling inward wall displacements for bottom-up construction in soft clay. It is recognized that inward wall displacements prior to strut installation must be minimized for effective bracing. A jet grout block, formed along the retaining wall, that extends to a higher level above the jet grout slab allows the possibility of resisting inward wall displacements at the earlier stages of excavation. The jet grout elements also improved basal stability of the excavation by restricting heave close to the retaining wall.

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Numerical Analysis of Jet Grout Elements for Braced Excavation in Soft Clay

Ho, C. E. / Hu, S.

Finite element analyses demonstrated that a combination of jet grout block and slab was very effective in controlling inward wall displacements for bottom-up construction in soft clay. It is recognized that inward wall displacements prior to strut installation must be minimized for effective bracing. A jet grout block, formed along the retaining wall, that extends to a higher level above the jet grout slab allows the possibility of resisting inward wall displacements at the earlier stages of excavation. The jet grout elements also improved basal stability of the excavation by restricting heave close to the retaining wall.

Numerical Analysis of Jet Grout Elements for Braced Excavation in Soft Clay

Ho, C. E. / Hu, S.

Finite element analyses demonstrated that a combination of jet grout block and slab was very effective in controlling inward wall displacements for bottom-up construction in soft clay. It is recognized that inward wall displacements prior to strut installation must be minimized for effective bracing. A jet grout block, formed along the retaining wall, that extends to a higher level above the jet grout slab allows the possibility of resisting inward wall displacements at the earlier stages of excavation. The jet grout elements also improved basal stability of the excavation by restricting heave close to the retaining wall.

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Title:

Numerical Analysis of Jet Grout Elements for Braced Excavation in Soft Clay

Contributors:

Ho, C. E. (author) / Hu, S. (author)

Conference:

GeoCongress 2006 ; 2006 ; Atlanta, Georgia, United States

Published in:

GeoCongress 2006 ; 1-6

Publication date:

2006-02-21

ISBN:

DOI:

https://doi.org/10.1061/40803(187)260

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Geotechnical engineering , Bracing , Numerical analysis , Finite element method , Jet grouting , Information management , Computer applications , Excavation , Soft soils , Clays

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