トンネル (9)

[III-357] The transition in the design method of open-cut tunnels for railroads
- Influence of the design values of the ground on the cross-sectional forces at excavation depths of 20 m or deeper -

*Haruki Nishio¹, Tomoki Sakata², Kosuke Muroya², Sadao Kimura¹ (1. Kanazawa Institute of Technology, 2. CHUO FUKKEN CONSULTANTS CO.,LTD.)

Keywords:Open-cut tunnel, Tunnel Design Methods, Rankine's coefficient of active earth pressure, coefficient of earth pressure at rest