双向倒塌爆破拆除四联体钢筋混凝土结构筒仓 |
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作者单位: | ;1.北京工业大学建筑工程学院;2.北京工业大学建筑工程学院;3.北京工业大学建筑工程学院 北京100022;4.北京100022 |
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摘 要: | 待拆四联体钢筋混凝土结构筒仓群,高宽比接近1。爆破前通过对筒仓群进行预切缝,使其成为相对独立结构;采用秒差多段延期爆破方案,使两两独立的筒仓分别向南、北方向倒塌。文中论述了爆破设计方案、爆破参数和切口高度的确定以及起爆网路的设计与施工等。
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关 键 词: | 拆除爆破 控制爆破 钢混筒仓 秒差延时 双向倒塌 |
DEMOLITION OF FOUR INTERCONNECTED REINFORCED CONCRETE SILOS BY TWO-DIRECTIONAL COLLAPSING BLASTING |
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Abstract: | The four interconnected reinforced concrete silos to be demolished have relatively small ratio of height to widthBefore blasting,the silos were cut and divided into two separate structuresBy use of second delay blasting,the two separate structures were made to collapse to the south and north respectivelyIn the paper,the design of blasting scheme,the determination of blasting parameters and cut height,blasthole pattern and blasting network were discussed |
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Keywords: | Demolition blasting Controlled blasting Reinforced concrete silos Second delay Two-directional collapsing |
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