徐园园,段卫东,白杨,蒋培,黄小武

• 1:武汉科技大学理学院

摘要(Abstract)：

某砖厂有一座60 m高砖烟囱,使用时间较长局部发生风化,且烟囱整体倾斜5°。针对风化倾斜砖结构烟囱的实际情况,以及复杂的现场环境,通过LS-DYNA有限元软件对设计的三组参数进行了模拟分析。结合模拟结果与工程实践经验,采用正梯形长12 m高2.8 m的爆破切口、爆破切口设计在倾斜方向、倾倒方向与倾斜方向重合等参数的选择使爆破拆除方案达到了最优化。将切口设计在倾斜方向、人工修正定向窗、利用烟囱倾斜等措施,确保了烟囱按照预定方向倒塌。

关键词(KeyWords)： 定向拆除爆破;数值模拟;LS—DYNA;最优化

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 徐园园,段卫东,白杨,蒋培,黄小武

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