2022 年 63 巻 2 号 p. 121-127
Recent years have seen the collapse of embankments due in many cases to heavy rain in Japan. It is difficult to re-compact embankments which have suffered this type of collapse, because the collapsed soil contains a large amount of water. Another problem is that existing embankments in Japan are often constructed of materials which do not comply with current regulations of Japanese railway. For these reasons, conventionally, since the collapsed soil can’t be reused, purchased soil is used for restoration in Japan. However, this approach is both time consuming and costly. This paper proposes a new restoration method which reuses the soil from the collapsed embankment by utilizing the dehydrating effect of lime and by increasing soil strength by compaction.
