Study on the disaster due to the Central Java, Indonesia earthquake of May 27, 2007

2007年5月27日印度尼西亚中爪哇地震灾害研究

基本信息

批准号：
18900001
负责人：
KAWASE Hiroshi
金额：
--
依托单位：
KYUSHU UNIVERCITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Special Purpose
财政年份：
2006
资助国家：
日本
起止时间：
2006 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18900001/
关键词：
Indonesia Earthquake Disaster ground motion Lifeline ground failure reinforced concrete brick

项目摘要

Due to the earthquake of magnitude (M) 6.3 of the Central Java, Indonesia earthquake, more than 5,700 casualties and 140,000 collapsed houses were produced on May 27, 2006. The feature of this earthquake damage is that very serious human and structural damage has occurred compared to its small earthquake size. Therefore, our focus of this research is to investigate the cause of such a devastating damage to people and structures from the view point of the source location, source characteristics, soil amplification, and fundamental response characteristics of structures. The research troop is divided into five small teams, namely, the earthquake and ground motion team, the soil structure team, the damage outline and human loss team, the building damage team, and the civil engineering structure damage team, and they perform field surveys in the country and laboratory analysis afterward.First, by the earthquake and ground motion team, aftershock observation was carried out and the area of … More aftershock was determined. The detailed focus mechanism was inverted using earthquake observation data. As a result, the source region was probably located directly under the damage concentration area, or its west side. This means that the causative fault is not connected to the Opak fault.As for the ground structure, we investigate the sedimentary basin structure by using geomagnetism and a telluric current method and we delineate the shallow subsurface layer structure by microtremor measurement. As a result, it turned out that the spatial difference of damage mainly depends on the shallow subsurface layer structure.As for the building damage, wide scale damage distribution was delineated by the satellite imagery analysis. Moreover, the earthquake damage analysis is made based on the actual enforcement of local laws and actual condition of construction, and the earthquake resistance of the building made of reinforced concrete and bricks was investigated in detail. We also investigated civil engineering structure, ground failure, and lifeline damage Less

2006年5月27日，印度尼西亚中爪哇省发生里氏6.3级地震，造成5700余人伤亡、14万间房屋倒塌。这次地震破坏的特点是人员伤亡和结构破坏十分严重。因此，与规模较小的地震相比，我们这项研究的重点是从震源位置、震源特征、土壤放大、研究团队分为地震与地震动研究组、土结构研究组、损伤轮廓与人员损失研究组、建筑损伤研究组、土木工程结构损伤研究组等5个小组。首先，地震与地震动团队进行了余震观测，确定了余震的区域，并利用地震反演了详细的震源机制。观测数据因此，源区可能是位于损害集中区的正下方，或其西侧，这意味着发源断层与Opak断层不相连。对于地面构造，我们利用地磁和大地电流方法调查了沉积盆地结构，并圈定了该断层。浅层地下结构的微震测量结果表明，损伤的空间差异主要取决于浅层地下结构的损伤，卫星图像分析描绘了大尺度的损伤分布。根据当地法律的实际执行和建筑的实际情况进行震害分析，对钢筋混凝土和砖砌建筑的抗震性能进行了详细调查，并对土木结构、地面破坏和生命线进行了调查。损害较小