シールドトンネル (11)

[VI-657] Achievements of improving tunnel roundness under conditions of large cross-section and low soil cover

*Waku Kimura¹, Yoshihiko Shibata¹, Yoshitaka Kii¹, Kenji Shinkawa¹, Satoshi Takayanagi¹, Kenji Murata², Ryoji Kodama², Jun Ozeki², Yoshihito Hashimura³ (1. Kajima Corporation, 2. East Nippon Expressway Company, 3. KEISOKU GIKEN)

Keywords:shield, large cross section, a low soil cover, uplift, roundness, an automatic measurement system