Publication Abstract




Proceedings of the Deep Mixing 2015 Conference, (DFI)

A Full-Scale Test by Low-Improvement-Rate Soil in Combination with Crushed-Stone Mat on Peaty Ground
H. Hashimoto, Civil Engineering Research Institute for Cold Region, PWRI, Japan; T. Yamanashi, Civll Engineering Research Institute for Cold Region, PWRI, Japan; H. Hayashi, Civll Engineering Research Institute for Cold Region, PWRI, Japan; M. Yamaki, Civil Engineering Research Institute for Cold Region, PWRI, Japan

In an experiment on a trial embankment, the deformation mode of the improved ground at the toe of the embankment was compared with the deformation mode of the unimproved ground. This comparison showed that the behavior exhibited by the improved ground was the same as that exhibited by the unimproved ground, despite the low improvement rate (ap = 10%) of the ground improvement. Thus, the improved ground and the unimproved ground were found to be functioning as composite ground. Further, the strain that developed in the geo-textile used for the crushed-stone mat was considerably less than the strain specified by the design strength. As a result, it was found that a crushed-stone mat can serve as a mattress.


 article #2078; publication #1013 (DM-2015)