平成28年熊本地震による阿蘇大橋地区斜面防災対策 「砂防災害関連緊急事業（直轄）」の取り組み

抄録

The Aso District was severely damaged by Kumamoto Earthquake that occurred in 2016. In order to rapidly restore the transportation infrastructure and other facilities, we implemented a slope disaster prevention countermeasure construction project of the Aso Ohashi Bridge Area as an emergency project related to Sabo disaster directly under the central government in order to provide immediate measures against this disaster. For the reconstruction work, because of there were concerns on secondary disaster due to aftershocks and rainfall, and because the data on the situation of the site was lacking because it was directly after the disaster, by making use of construction ICT, unmanned construction, remote operation, etc., we carried out land retaining embankment works, as well as rounding works immediately after the earthquake, an area where manned work is possible at the lower part of the slope has been constructed. The background that enabled such a prompt response is because of a business management system that was implemented by the contractee and contractor who worked together as a team. In the business management system that was implemented this time, while simultaneously conducting research, design, and construction in parallel, the team regularly received advice and confirmation by academic experts, and both contractee and contractor worked on measures with a highly organized manner while ensuring mobility. This effort is thought to be effective and useful in future disaster responses, and which may lead to prompt restoration and reconstruction of severely damaged area.