Issues in Design and Evaluation of Compaction Grouting for Foundation Repair
Publication: Innovations in Grouting and Soil Improvement
Abstract
Design of Compaction Grouting for improvement of soil properties is often based on previous experience and relies on pre- and post-construction evaluation of soil properties. However, this design practice is not always suitable. An aerator tank at a food-processing facility, in Georgetown, Delaware, provided a good opportunity to evaluate design procedures in Compaction Grouting. The perimeter walls of the tank had been undergoing significant vertical displacement and rotation, presumably due to insufficient bearing capacity of the underlying loose sands. A Compaction Grouting program was designed to improve the bearing capacity of the soils through the combination of the effects of soil densification and soil reinforcement induced by the grout inclusions. Standard Penetration, Cone Penetration, and Dilatometer testing were used with limited success to evaluate the effectiveness of grouting. Post-construction monitoring of the structure revealed that the treatment was successful. This paper describes the process followed for design and installation of the compaction grouting elements, as well as the results of the monitoring collected to date. The paper also discusses the difficulties encountered during interpretation of the in-situ testing. Some recommendations for design and evaluation of compaction grouting in loose, granular soils are presented.
Get full access to this chapter
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2005 American Society of Civil Engineers.
History
Published online: May 7, 2012
ASCE Technical Topics:
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.