谏壁电厂三座100m高钢筋混凝土烟囱爆破拆除

摘要

介绍了三座100m高结构相同的钢筋混凝土烟囱一次爆破全部成功拆除.采用单切口定向倒塌方式,机械预处理开窗、预留支撑体,爆破时只炸切口范围内的支撑体而使烟囱定向倾倒.通过精心设计和施工获得了定向准确、倾倒落地安全、振动及飞石等危害控制良好的爆破效果.%The paper introduced the successful demolition of the three 100 m - high reinforced chimneys which have the same ttructure by directional blasting. The directional collapsing form of single blasting cut was osed, the mechanical pretreatment windows and the reserved support were done, ani only the support of the cut range was blasted in the final With reasonable design and construction, the successaful blasting effest of accurate direction, secure collapse, and the favorable harm contro1 of vibration and slungshot can be achieved.