シールドトンネル (2)

[VI-159] The resistant to abrasion of cutter bits and construction results of mud pressure shield when evacuated in gravel bed with megalith

*Yu Nakazawa¹, Hirobumi Iwai¹, Yosuke Nishida¹, Syuhei Matsumoto¹ (1. SHIMIZU CORPORATION)

Keywords:mud pressure shield, megalith, boulder, Abrasion of cutter bits, Exchange of cutter bits