COMPOSITE MATERIALS IN METRO STRUCTURES: THE EXPERIENCE OF TOKYO METRO

A’zamov Nodirbek Faxriddin ugli,Shaumarov Said Sanatovich

Authors

A’zamov Nodirbek Faxriddin ugli,Shaumarov Said Sanatovich 1st-year PhD student, Tashkent State Transport University,Vice-Rector for Research and Innovation, Tashkent State Transport University, Doctor of Technical Sciences, Professor.

Keywords:

composite reinforcement, CFRP, GFRP, metro tunnel, seismic durability, anti-corrosion, innovative materials.

Abstract

This paper analyzes the structural, technological, and operational advantages of composite materials used in metropolitan infrastructure. Utilizing the Tokyo Metro in Japan - a region of high seismic activity - as a primary case study, the practical application of fiber-reinforced polymers, including GFRP, CFRP, and BFRP, was investigated. The findings indicate that composite materials substantially enhance the seismic stability, corrosion resistance, and overall service life of metro structures.

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