QR (Quarterly Report of RTRI)

PERSPECTIVES

• Recent Trends in Design Technology of Cut and Cover Tunnels for Railways

  N.OKANO, M.KODAP1

• Recent Research and Development Activities in Maintenance Technologies for Electric Railway Power Supply Systems

  M.IKEDAP6

• Update on Basic Research into Superconducting Maglev and Research on Application of Maglev Technology to Conventional Railway Systems

  K.NAGASHIMAP11

PAPERS

• Investigation of Deformation of Shield Tunnel Based on Large-scale Model Test

  K.TSUNO, K.KINOSHITA, T.USHIDAP16

• Method for Estimating Maximum Response Displacement of Sheds on Viaducts Considering Coupled Vibration Behavior Between the Shed and the Viaduct

  H.MIKI, K.SHIMIZU, S.YAMADAP22

• Characteristics of Uplift Force Acting on Bridge Bearings during Earthquakes

  M.SAITO, T.NIHEI, Y.DOUCHIP28

• Current Estimation Method at the Time of a Contact Wire Breakage during Standstill below Insulated Overlap Based on Contact Wire Necking Length

  S.WADA, K.ITO, T.HAYASAKAP34

• Development of New Earthing System Inspection Method for the Evaluation of Lightning Protection

  G.MORITA, H.TANAKA, K.MICHISHITAP40

• Development of Simple Catenary System for Operation over 300 km/h

  M.TSUNEMOTO, M.SHIMIZU, K.IRIKURA, H.MORIMOTO, C.YAMASHITA, K.IKEDAP47

• Development of a Superconducting Magnetic Bearing Capable of Supporting Large Loads in a Flywheel Energy Storage System for Railway Application

  Y.MIYAZAKI, K.MIZUNO, M.OGATA, T.YAMASHITA, K.NAGASHIMAP54

• Monitoring and Protection Method of a REBCO Magnet Designed for Electromagnetic Vibration Tests

  K.MIZUNO, M.TANAKA, M.OGATAP60

• Insulation Diagnosis with a Focus on Partial Discharge of the Propulsion Coils of the Superconducting Maglev

  R.IKEDA, S.OTA, M.AIBA, H.YODA, K.WATANABEP66

SUMMARIES

• Summaries of RTRI REPORT (in Japanese)

  P72

ANNUAL INDEX

• Annual Index: Subjects Vol.61, No.1 (2020)

  P76