鉄道 (8)

[VI-691] Construction report of vertical shaft excavation in place near the pier of operational railway viaduct

*Yusuke Sasaki¹, Akihiro Morita², Hironori Naganuma², Hiroyuki Naito³, Yuichi Takeuchi³, Yusuke Sakamoto³ (1. Konoike Construction Civil Engineering Department, 2. Konoike & Takenaka JV, 3. Keio Railway Department)

Keywords:Keio line, Mud pressure type pipe jacking method, Neighboring construction, the beam of zero step, precedent ground beam