RESTORATION CONSTRUCTION USING ECO-TUBE ON THE GREAT EAST JAPAN EARTHQUAKE

Abstract

Disaster restoration work was worked with the ECO-TUBE METHOD. There are many water ways in Ishinomaki. The water way using for agriculture and waste water way were dredged. But this dredged sediment contains lot of sand and it is difficult to pump up sand. Then we mixed this dredged sediment carefully. After that this dredged sediment pump up easily and geo-tube which sized 1.0m3 was packed approximately 2000m3 on site. Geo-tube were dehydrated for 20 days and moved to where land subsidence place using for embankment.