Early period correspondence following earthquake centering on water supply and fire fighting systems

在本研究中，目的是探讨减少地震破坏的措施，将重点放在地震后供水和消防系统的早期对应关系上。首先通过大规模火灾的火灾蔓延模拟，研究了火灾破坏预测方法。并根据平均燃尽面积与时间的关系，将火灾蔓延模型视为预测最大和最小且具有宽度的区域。此外，还检查了有关消防力量和消防供水等损害的因素，地震力量的程度和该地区的特征。例如，分析了阪神大地震中发生大规模火灾的神户市的消防活动和供水设施的记录。实践证明，如果该系统能在地震发生后立即通过水池的阀门控制使水位达到2 ~ 3米左右，那么在许多大型火灾的灭火活动中，就有可能出现许多消防栓起作用的情况。同时也表明，公民自愿的早期灭火活动是控制火灾早期蔓延的重要措施。

In this research, the purpose is to examine about the reduction measure of the earthquake damage that squeezed a focus to early period correspondence following the earthquake on the water supply and fire fighting systems.The damage prediction method was studied by the fire spread simulation about the large-scale fire first of all. And, grasping as the relation between average burnout area and time, the fire spread model was considered as the zone where does biggest and also minimum prediction and had width. Also the factor examined with regard to the damage such as fire fighting power and the fire fighting water supplies, the degree of the earthquake power and of the characteristic of the area.For example, the record was analyzed about the fire fighting activity and water supply facilities of Kobe City where concentrated with large-scale fires at Great Hanshin Earthquake. It was proved that there was the possibility that many fireplugs work in the fire fighting activities of many big fire, if the system would make water level about two or three meters immediately after the earthquake by the valve control of the water pond. Also, it was shown that the voluntary early period fire fighting activity of the citizen is an important measure that controls the fire spread at an early period stage of the fire fighting.