震災のダイナミクス

その1 世帯に及ぼす影響の時間変動性-記載法-

抄録

Despite that earthquake disasters and regarded phenomena vary their characters and aspects in time on damage and restoration processes, no many studies have yet been made as natural as they are. This paper attempts a development of the methodology by which all of major earthquake phenomena in dynamic manner can well be described.
Paying special attention to a household, a fundamental unit in our human society, the authors develop a model which considers the total seismic effect in terms of “time variation in the living standards of a households” after an earthquake. The living standards and its change in time, under the critical situation attacked by an earthquake, can be described by a combination of four major factors regarding physical, commodity, family and economic damages. Damages to dwelling and lifeline facilities are significant elements in the physical factor. Commodity factor relates to the shortage of foods, water and other daily goods. Representative elements in the family factor are casualties of the family members. Extraordinary expenses for the reconstruction of a dwelling is an important element in the economic factor. The household's living standards in the quantitative sense can be defined as an integration of the seismic effects in terms of those factors of which characteristics are expressed and evaluated in time-dependent functional forms.
In the following paper, a case study of the time-varying household's living standards for a large city in Japan will be demonstrated based on the developed methodology.