About the depression of the ground surface near the construction site of the Tokyo outer ring road (Kan-etsu-Tomei) [18th report]

March 19, 3rd year of Reiwa
East Nippon Expressway Co., Ltd. Kanto Regional Head Office

The "Tokyo Gaikan Expressway Construction Review Committee Expert Committee" was held on the ground surface depression that occurred near the construction site of the Tokyo Gaikan Expressway (Kan-etsu-Tomei) main line tunnel (southbound).
Please see here for an overview of the results.