Experimental examination of Sabo soil‐cement using weight dropping device for an impact resistance

Joji SHIMA, Toshiyuki HORIGUCHI, Ichiro KURODA, Sakae OBUSE


Sabo soil‐cement have some advantages of reducing the amount of sediment transported, reducing costs by using local sediment, and the construction method considers zero emission in the environment. The strength evaluation can be decided on a compressive strength obtained from a uniaxial compression test. However, the evaluation isn’t conducted about dynamic load evaluation like a bouldery debris flow. The study conducts an impact loading experiment against Sabo soil‐cement specimen to examine an impact resistance. In addition, in order to study an impact resistance possessed by the Sabo soil‐cement, the relationship between a dropping weight accumulation energy and a collapsed volume and the relationship between dropping weight energy and compressive strength were summarized. In these results, the larger the compressive strength become, the larger the accumulated weight energy become. Also, the relationship between maximum impact load and weight energy increases linearly until cracks in the specimen. Therefore, if the compressive strength of the Sabo soil‐cement is large, the Sabo soil‐cement has large impact resistance against impact load on the collision surface.

Key words

Sabo soil‐cement, Impact load, Impact loading experiment, Impact resistance