施工技術 (4)

[VI-57] Slope disaster countermeasure construction near the tunnnel entrance of a highway-ken o expwy kawaguchi tunnel north entrance-

*片山 政弘¹、長町 明彦²、鈴木 勝¹、阿部 翔太¹、中出 剛¹、山口 哲司¹、浜田 好弘¹ (1. 熊谷組、2. 中日本高速道路)

Keywords:Heavy rain disaster, highway, Steep slope, Proximity work, Recovery measures

Slope failure occurred near the highway tunnel due to heavy rain. In this case, the expressway was not adversely affected, but without measures, the slope failure in the future progressed and it might cause the sediment inflow to the main line. In the slope disaster recovery measures construction under severe construction conditions where it is difficult to access on steep slopes, the contractors and contractors will proceed with investigation, design and construction in close cooperation and complete the countermeasure construction at an early stage Was done.