Grouting and Ground Treatment: Proceedings of the Third International Conference, (ASCE)
Using the Grouting Intensity Number (GIN) to asses Compaction Grouting Performance
S. W. Perkins, J. Harris
Compactin Grouting is a method of ground improvement using the injection of low slump (<25 mm) soil cement into weak soils to compact the soil by lateral displacement. This technique, as practiced by the Contractor, uses a 50-mm diameter steel casing driven to the bottom of the weak zone and withdrawn in 300-mm stages. Each stage receives a specified volume of grout, typically 1451/0.3 m (5 cf/lf), which creates a bulb of grout that locally compacts the soil to some radius around the hole. Compaction Grouting has been discussed in detail by Warner (1982) and others. This paper describes the development of the GIN concept's application to compaction grouting of loose sand embankments.
|article #1137; publication #62 (GRT-2003)|