In situ construction of a geogrid reinforced soil wall combined with soil cement

A new type geogrid-reinforced soil wall (GRW) combined with soil cement was developed in recent years by authors. A number of tests, as material property test, pullout test between geogrid and soil cement, 1G loading test (Ito et a]. 2001), centrifuge shaking table test (Saito et al. 2006) and In-situ test, were conducted in order to verify the stability of new GRW. Besides, the method was applied at over 25 construction site in Japan. In this paper, two cases are selected and results of In-situ test and measurement are reported. In Case 1, the new GRW was applied to the road embankment for construction and for maintenance in a Dam construction site. The RSW of case 2 is also for a road embankment. In the site, pullout test was conducted besides measurement of earth pressure and strain of geogrid. Finally, scope of future works based on the obtained results of in-situ tests is suggested.