2000年3月27日13时,江苏省徐州市铜山县某村小学一年级学生们正挤在操场围墙边玩耍。大风骤然卷起沙石,使人睁不开眼,“轰隆”一声巨响,操场围墙倒塌,众多小学生被埋在残垣断壁中。惊呆的师生们很快反应过来,一面投入抢救,一面向上级报告。事故发生后,市县有关领导迅速赶赴现场,组织抢救和事故调查,有5名小学生被砸后当场身亡,1人经医院抢救无效死亡。事故原因分析如下。直接原因是大风直吹围墙,此时风荷载为40 kg/m~2,围墙不堪负重倒塌,导致重大伤亡事故发生。间接原因是由于围墙年久失修。围墙系构筑物,墙厚为240mm,采用水泥砂浆砌筑,由于围墙暴露在空 At 13:00 on March 27, 2000, first-year students of a certain village primary school in Tongshan County, Xuzhou City, Jiangsu Province were crowding around the playground wall. Gale suddenly rolled curly sand, people can not open their eyes, “Bang” a loud noise, the playground wall collapsed, many primary students were buried in the ruins. Stunned teachers and students quickly react, put into rescue, one for the superior report. After the accident, relevant leaders of cities and counties quickly rushed to the scene to organize rescue and accident investigations. Five pupils were killed on the scene after they were smashed and one died as a result of hospital rescue. The cause of the accident is analyzed as follows. Directly because the wind blows directly to the wall, the wind load at this time is 40 kg / m ~ 2, and the wall collapses, causing heavy casualties. Indirect reason is due to the wall disrepair. Wall structure, wall thickness of 240mm, the use of cement mortar masonry, as the wall exposed to the air