Influence Analysis and Measurement of Underpinning Viaduct of Shinkansen Station

Abstract

This paper reports on the influence analysis and the measurement of underpinnig the viaduct of Sendai station on Tohoku Shinkansen in the construction of the subway which crosses under the viaduct.
For operating Shinkansen safety, the virtical displacement of the viaduct have been controlled by limiting 3mm. We are measuring the subsidence and the inclination, etc. of the viaduct automatically. And the result of this measurement agrees with the analysis done before construction well. The viaduct does not displace harmfully now. We continue measuring in the construction in the future, and we will feed back the result of measurement to construction.