两层内衬烟囱的控制爆破拆除  

Controlled Blasting of a Chimney with Two Layers Lining

作　　者：邓庆林 

机构地区：[1]湖南益阳市水利水电局,湖南益阳431000

出　　处：《爆破》2000年第4期43-46,共4页Blasting

摘　　要：位于市区 30多米高的孤立山包上 ,一座有两层内衬的 5 3m高的砖烟囱 ,其最上部有 3m已出现破裂偏斜。应用烟囱定向倾倒控制爆破技术 ,设计选取了合理的倾倒方向 ,并对最里层保温层和内衬进行了预拆除。采取了开设定向窗、烟囱外壁和中间内衬同网起爆的技术方案。共用 5 8发瞬发电雷管 ,总装 2号岩石硝铵炸药 2 475 g ,一次起爆成功。A 53m high chimney with two layers of lining,situated on a hill in the city, is slanting due to its rupture at the upper end. A dierctional controlled blasting was used to demolish the chimney through reasonably selecting the collapse direction and pre demolishing the insulating layer and lining, the technological programs of opening a directional window and blasting the wall and lining at once are adopted.

关 键 词：控制爆破 定向倒塌 砖砌烟囱 爆破拆除 爆破参数 

分 类 号：TU746.5[建筑科学—建筑技术科学]