[VI-871] Effective maintenance of fastening insert in prestressed concrete sleeper

〇Kazutaka Matsumaru¹, Koji Yokota¹ (1.West Japan Railway Company)

[VI-872] Examination of GCcrack control method and maintenance method in sharp curve of Shinkansen

〇Ken Horigome¹, Hikaru Tsuchida¹, Mitsuhiro Shibata¹, Shohei Matsushita¹ (1.East Japan Railway Company)

〇yoshitake matsuura¹, seiichi matsui¹, syunichi imayoshi¹ (1.Railway Track & Structures Technology)

〇Yasuhiko Yoshida¹, Masaaki Mori¹, Kousuke Inamoto¹ (1.East Japan Railway Company)

〇ryouhei fujii¹ (1.KOSEI Construction Co., Ltd.)

〇kyohei nishibayashi k.nishibayashi¹ (1. KOSEI KENSETSU)

〇Abe Masatoshi¹ (1.Daiichi Kensetsu Kogyo)

〇YOICHIRO MURAYAMA¹, GAKU EHARA¹ (1.RAILTECH CO.,LTD)

〇Ryo Nozawa¹ (1.TOTETSU)

〇Hiroki Toyoda¹ (1.Nihonkikaihosensizuokazigyousyo)