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13-07-2022 | Original Paper

An Innovative Post Grouting Technique for Soil Nails

Authors: Max Gabriel Timo Barbosa, André Pacheco de Assis, Renato Pinto da Cunha

Published in: Geotechnical and Geological Engineering | Issue 11/2022

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Abstract

The article discusses the limitations of conventional soil nailing techniques, particularly the deleterious effects of grout exudation on pullout resistance. It introduces sectorized post grouting (SPG), a technique that involves reinjecting grout into specific sectors of the nail after initial gravity grouting. This method aims to enhance the nail's surface roughness and pullout resistance, compensating for the effects of exudation. The technique was validated through field pullout tests in soft clay and various other soil types, demonstrating significant improvements in pullout resistance compared to conventional methods. The results indicate that SPG is effective in enhancing the performance of soil nails, making it a promising alternative for geotechnical engineering applications.

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Metadata
Title
An Innovative Post Grouting Technique for Soil Nails
Authors
Max Gabriel Timo Barbosa
André Pacheco de Assis
Renato Pinto da Cunha
Publication date
13-07-2022
Publisher
Springer International Publishing
Published in
Geotechnical and Geological Engineering / Issue 11/2022
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-022-02231-5

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