玉树7.1级地震人员伤亡影响因素调查与初步分析

文中在震后首先利用汶川地震中受灾的汶川县、北川县、都江堰市等37个重灾区人员伤亡数据,基于统计分析建立了各受灾区域烈度影响系数与相应的遇难率、受伤率和失踪率的双指数拟合关系,并利用该模型初步估算了玉树地震人员伤亡情况,通过对比实际值与估算值验证了该模型的可行性.其次,基于玉树县城(结古镇)14个区域的现场调查,初步分析...

Investigation report on influence factors of casualties in April 14,2010 Yushu earthquake

According to the casualties data of 37 severe disaster areas in Wenchuan earthquake including Wenchuan county,Beichuan county,Dujiangyan city and so on,the double index fitting functions between intensity influence coefficient of each disaster area and mortality rate(injury rate and missing rate)are firstly established.Then,the casualties of Yushu earthquake are primarily estimated with this double index fitting functions.Finally,according to the survey in 14 representative regions of Yushu county,the relationships between mortality and total population,building distribution,structure type and purpose of building are discussed.Furthermore,the changes of reported mortalitiy with time are presented.According to the incomplete statistics in the site,the spatial distribution of mortality shows that in the south is much higher than in the north and in the west is much higher than in the east in Yushu County.Moreover,the mortality of Yushu earthquake are mainly distributing in the dwellings and school buildings,accounting for 76.9 percent and 15.2 percent,respectively.Most of the mortality is caused by the collapse of adobe(stone) buildings and concrete hollow block buildings,accounting for 64.4 percent and 30.1 percent,respectively.