An Immediate Evaluation Method Of
Earthquake Damage Of Dams By Utilizing
Real-time Earthquake Information
Author(s)
Y. Ariga, Y. Fujinawa, N. Kawakami, T. Ohsumi
& T. Nishino
Abstract
Recently, the magnitude of earthquakes and the location of epicenters have come
to be estimated urgently in 3–4 seconds based on the observed data of a P-wave.
Urgently estimated earthquake information is termed the real-time earthquake
information. Furthermore, an arrival time and an intensity of the S-wave can be
estimated and people informed before the arrival of the main shock. Such
earthquake information before the arrival of the main shock is defined as the
early earthquake warning. In this study, we have developed an immediate
evaluation method for earthquake damage of dams by combining the early
earthquake warning and a 3-D dynamic analysis. As a result, the earthquake
damage of dams can be evaluated by the method proposed within one second.
This method is useful to mitigate not only human disaster but also physical
damage by earthquakes.
Keywords: dam safety, earthquake damage, real-time, 3D dynamic analysis,
immediate evaluation, the early earthquake warning.
1 Introduction
Verification of seismic safety of dams against very large earthquake is very
important theme. In Japan, the seismological observation networks such as the
Hi-net(High sensitivity seismograph network), the KiK-net(Kiban kyoshin
Network), the K-NET(Kyoshin network), the seismic intensity observation
network, and so forth have been densely arranged by the Ministry of Education
Keywords
dam safety, earthquake damage, real-time, 3D dynamic analysis,
immediate evaluation, the early earthquake warning.
Related Book
Other papers in this volume
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