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List of products by author: Y. Mutou
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Maintenance and Measures Adopted to Extend Useful Life of Tunnels at Tokyo Metro
Abstract: Tokyo Metro Co., Ltd. (Tokyo Metro) operates a subway network with nine lines over a total distance of 195.9 km in the Tokyo Metropolitan area, the world’s most massively urbanized area. The subway network provides services for 6.44 million passengers a day. Subway’s infrastructure development, and operation and management are undertaken by the same entity, that is, train...
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Utilization of IT and the Current Condition of the Repair Measures in the Maintenance of Subway Tunnels
Abstract: Tokyo Metro Co., Ltd. (“Tokyo Metro”) operates a subway network with nine lines, 195.1 km of track and daily ridership of 6.44 million in Tokyo, the largest metropolitan area in the world. More than 80 years have passed since some tunnels were built, and soft ground, saline groundwater and other factors have caused peculiar structural deformations. In this paper, we describe the use of IT for...
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