抄録
A soil improvement of the low improved rate is effective for cost reduction of countermeasure for soft ground and shortening the construction period. Therefore we developed a new design method that could consider an arch action to occur in embankment. It is possible to evaluate embankment load carrying cement column and non-improved soft ground by the arch action. Therefore it is possible to distribute improved cement column distance bigger than a conventional construction method. It is complete and places an improved cement column under the embankment. So, it is possible to control settlement and differential settlement of the embankment, moreover it is becoming cost reduction of countermeasure for soft ground and shortening the construction period. In this report, we introduce the outline of the Arch Action Low Improvement Ratio Cement Column Method, and we clarify the effectiveness by comparing ALiCC method and conventional methods.
