Estimation of Seismic Shutoff of Intelligent Gas Meters in the Tokyo Metropolitan Area
Yoshihisa Maruyama*, Fumio Yamazaki*, Yoshihisa Yano**,
and Naoyuki Hosokawa**
*Department of Urban Environment Systems, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
**Tokyo Gas Co., Ltd., 1-5-20 Kaigan, Minato-ku, Tokyo 105-8527, Japan
We conducted shaking-table tests to clarify the seismic shutoff features of intelligent gas meters stopping the supply of gas during earthquakes where Tokyo Gas Co., Ltd., provides service, and studied the relationship between earthquake movement and gas meter shutoff based on 200,000 monitored archive data points showing shutoff situations during actual seismic movement.
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