Research on Maintaining of Function of Life-saving Lifelines and Mitigation of Casualty

1.在2004年新泻地震后进行了现场调查和人员伤亡和紧急行动的信息收集。根据获得的数据分析了人员伤亡与地震烈度的关系等问题。分析了地震后伤员救人应急运输系统的优化问题。对地震后灾害信息通信系统的技术状况进行了调查。揭示了光缆的抗震对策和预警系统还需进一步研究。以2004年新泻地震的数据为基础，得出了道路系统的地震危险性评价方法。在假定行车列车因桥梁倒塌而坠落的假设下，用离散单元法分析了列车对人体的冲击力和列车的行为。分析了震后应急供水地点对灾民用水行为的影响。根据2004年新泻地震期间急救医院的问卷调查数据，对医院内外供水系统的地震危险性进行分析。根据人群暴露于地震烈度与人员伤亡之间的宏观关系，建立了人员伤亡估计方法。对地面生命线设施进行了有效应力分析，得到了地上和地下生命线设施的受力特性。

1. Site investigation and information gathering on casualty and emergency action were done after the 2004 Niigata Chuetsu earthquake. Relation between casualty and seismic intensity, and other issues were analyzed based on the obtained data.2. Optimized problems were analyzed on the emergency transportation systems for injured persons after earthquakes to save human lives.3. States of the arts of communication systems for disaster information after earthquakes were investigated. It revealed that seismic countermeasures of optical cables and early warning systems must be researched further more.4. Evaluation method of seismic risk of road systems was obtained based on the data during the 2004 Niigata Chuetsu earthquake.5. Impact force to human body and the behavior of trains were analyzed by Distinct Element Method under the assumption of the fall of running trains due to the collapse of bridge girders.6. Effects of the location of emergency water supply after earthquakes were analyzed in respect to the action of the usage of the water by sufferers.7. Seismic risk of water supply systems in and out of hospitals were analyzed based on the questionnaire data of emergency medical care hospitals during the 2004 Niigata Chuetsu earthquake.8. Estimation method for casualty was built based on the macroscopic relation between population exposure to seismic intensity and casualty.9. Effective stress analysis were done to obtain the behavior of above and below surface ground lifeline facilities.