地下構造物 (2)

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[VI-317] Construction of connecting upper and lower existing tunnels using freezing method

*Naomichi Kiyama¹, Daiki Asahara¹, Yasuhiro Asa¹ (1. TAISEI Corporation)

Keywords:

Freezing method,Freeze expansion pressure,Shield tunnel,upper and lower parallel,Reinforcement for opening

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