Presentation Information

[VI-318]Effectiveness verification of bit shape and ultrasonic vibration in cutting drain material

*Naoko Shimmoto1, Issei Sato1, Kaichi Mori1, Katsumi Numakunai1, Toru Ohkubo1, Sachi Kito1, Takeshi Kato2, Yuma Shinomura2, Jun Suzuki2 (1. KAJIMA CORPORATION, 2. SONOTEC Co., Ltd.)

Keywords:

Shield tunneling method,Drain material,Bit shape,Ultrasonic vibration