CGS(Compaction Grouting System) is widely used in reinforcement of structural foundation and ground improvement in soft ground. But the effects of ground improvement depending on the type of soil must be studied in order to adopt in various soils(gr...
CGS(Compaction Grouting System) is widely used in reinforcement of structural foundation and ground improvement in soft ground. But the effects of ground improvement depending on the type of soil must be studied in order to adopt in various soils(granular soil and cohesive soil).
In this study, characteristics of ground improvement(the increase of N value, increase in unit weight, vertical displacement on the ground surface) by CGS method was compared through two cases that were performed in granular and cohesive soil.
The results were showed that the closer to the grout hole, the more increase in N value and this trend appear distinctly in far from it independently of the soil type. The vertical displacement on the ground surface appeared in smaller area in case of granular soil than chesive soil.