贺五一,杨智旭,吴建源,薛峰松,谭雪刚

• 1:空军空降兵学院
• 2:解放军理工大学

摘要(Abstract)：

在复杂环境下,锦州电厂240 m高钢筋混凝土烟囱采用地面以上+0~+5.0 m的爆破切口、复式正梯形切口形式定向倒塌控制爆破拆除。通过设计30°的切口初始闭合角,50°的切口复合闭合角,5 m的切口高度和217°的切口下沿水平切口圆心角,并在切口上沿开设小梯形定向窗的方法,烟囱取得良好的爆破效果,爆破危害控制较好。总结得出,超高型烟囱自重大,采用低位爆破切口爆破拆除时具有下坐量大,倒塌时间长,方向难以控制等特点。

关键词(KeyWords)： 爆破拆除;爆破切口;爆破参数;钢筋混凝土烟囱

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 贺五一,杨智旭,吴建源,薛峰松,谭雪刚

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