[VI-931] Efficient bit replacement work of EPB shield tunneling in artificially frozen ground using new soil conditioning material Part 1 Overview of development

〇Yoshio Nishida¹, Hiroyasu Ishii¹, Daichi Kuroiwa², Shigeo Sasahara² (1.Taisei Corporation, 2.Fuji Chemical Co.)

[VI-932] Efficient bit replacement work of EPB shield tunneling in artificially frozen ground using new soil conditioning material Part 2 Laboratory test and estimation

〇Daichi Kuroiwa¹, Yoshio Nishida², Hiroyasu Ishii², Shigeo Sasahara¹ (1.Fuji Chemical Co., Ltd., 2.TAISEI CORPORATION)

[VI-933] Efficient bit replacement work of EPB shield tunneling in artificially frozen ground using new soil conditioning material Part 3 Site application and results

〇SEIYA TANAKA¹, Yoshio Nishida¹, Daichi Kuroiwa², Hiroshi Ogura³ (1.TAISEI CORPORATION, 2.Fuji Chemical Co., Ltd., 3.SEIKEN CO.,LTD)

[VI-934] Properties of bubbles under high pressure in foam shield construction method (Part2: Bubbles only)

〇Kenichi Kawano¹, Kazuo Yoshizako¹, Issei Sato¹, Shinji Takigawa², Tomoya Yoshida² (1.Kajima Corporation, 2.TAC Corporation)

[VI-935] Properties of bubbles under high pressure in foam shield construction method (Part3: Bubble-mixed soil)

〇Kazuo Yoshizako¹, Kenichi Kawano¹, Issei Sato¹, Shinji Takigawa², Tomoya Yoshida² (1.Kajima Corporation, 2.TAC Corporation)

[VI-936] Investigation of Using Foam and Mud-added Material in Large Cross-section Slurry Shield Machine

〇yuma kamagatani¹, Masashi Negoro¹, Seiki Nakamura¹, Kento Narita² (1.OKUMURA CORPORATION, 2.Japan Railway Construction,Transport and Technology Agency)

[VI-937] Comparison between multi-layer chip bit development experiments and field phenomena

Yasushi Morita¹, 〇Masayoshi Watanabe¹, Shigenori Kawamura¹, Ubukata Takeshi¹, Sasaki Makoto² (1.TAISEI CORPORATION, 2.MARUWAGIKEN)

[VI-938] Displacement measurement technology for linear structures using digital camera photography

〇Takayasu Shirai¹, Yasuyuki Ishihara¹, Ryohsuke Tsuji¹, Hideki Nagatani¹, Tomohiro Sasaki¹, Ryoichi Tohmetuka², Yusuke Taniguchi² (1.Kajima Corporation, 2.Sakata Denki Corporation)

[VI-939] Development of circularity measurement device of TBM tunnels with point cloud sensor

〇Akihiro Nishimori¹, Kenta Matsubara¹, Hiroshi Ueda¹, Masataka Hayashi¹, Hiroyuki Higashino¹ (1.OBAYASHI Corporation)

[VI-940] DEVELOPMENT OF THE AUTOMATIC TBM SURVEYING SYSTEM

〇Masataka Hayashi¹, Kenta Matsubara¹, Akihiro Nishimori¹, Hiroyuki Higashino¹, Norihiko Shirasaka² (1.OBAYASHI, 2.ENZANKOUBOU)

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