东部地区地震人员伤亡评估方法研究

我国是地震多发的国家之一,其中破坏性地震的发生频率也相对较高.伴随着我国经济的高速发展与城市化进程的加快,地震风险意识的提高以及国家对地震应急救援能力的更高要求都促进了对地震灾害评估方法的研究.其中地震人员伤亡评估方法更是灾情预测的重中之重,然而我国大部分历史地震都发生在西部,已有的地震人员伤亡评估方法也是基于西部历史...

Study on the assessment method of earthquake casualties in the eastern region

China is one of the countries with frequent earthquakes, and the frequency of destructive earthquakes is relatively high. With the rapid development of China’s economy and the acceleration of the urbanization process, the improvement of the awareness of earthquake risk and the higher requirements of the country for the ability of earthquake emergency rescue have promoted the research on the methods of earthquake disaster assessment. Among them, the assessment method of earthquake casualties is the most important one in disaster prediction. However, most of the historical earthquakes in China occur in the west, and the existing assessment method of earthquake casualties is also based on the statistical analysis of historical seismic data in the West. In the eastern region with higher population density and more developed economy, once a destructive earthquake occurs, its disaster degree will be far beyond the western region, so the existing methods can not meet the needs of earthquake prevention and emergency rescue decision-making in the eastern region. It is necessary to modify the assessment method of earthquake casualties suitable for the eastern region according to the characteristics of the eastern region. Comparing the major regional differences between China’s east and west, the influencing factors of earthquake casualties are analyzed. And the seismic performance differences of buildings focus on the proportion of self-built houses in cities and the proportion of main structural types in rural areas.The correction coefficient of earthquake casualty assessment in the eastern region is given, and its applicability is analyzed by some examples.