Abstract
This paper presents the site investigation and ground stiffening carried out in an 8 m thick, soft soil deposit located in the western zone of Rio de Janeiro, Brazil. The stiffening was achieved through the use of pre-fabricated vertical drains and radial deep consolidation grouting, a form of compaction grouting. In this study, the results of the site investigation, comprising laboratory and in situ tests, are presented and discussed. Soft soil parameters were used to compute the settlement–time curve considering vertical drains without grout injection. This was compared with the settlement–time field curve after grouting, obtained using data from settlement plates monitored for a period of 147 d. Comparison of the two sets of data enabled an improvement factor to be determined, thus quantifying the efficiency of the grouting. Field measurements, provided by settlement plates, were extrapolated to a long-term condition. Also, the final settlement after grouting treatment was evaluated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Proceedings of the Institution of Civil Engineers - Ground Improvement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.