工程爆破

2002, (04) 29-31+46

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双向倒塌爆破拆除四联体钢筋混凝土结构筒仓
DEMOLITION OF FOUR INTERCONNECTED REINFORCED CONCRETE SILOS BY TWO-DIRECTIONAL COLLAPSING BLASTING

高文学,刘运通,陈福盛
GAO Wenxue,LIU Yuntong,CHEN Fusheng(College of Architecture and Civil Engineering,Beijing Polytechnic University, Beijing 100022,China)

摘要(Abstract):

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。
The four interconnected reinforced concrete silos to be demolished have relatively small ratio of heighttowidthBefore blasting,the silos were cut and divided into two separate structuresBy use of seconddelay blasting,the two separate structures were made to collapse to the south and north respectivelyIn the paper,the design of blasting scheme,the determination of blasting parameters and cut height,blasthole pattern and blasting network were discussed

关键词(KeyWords): 拆除爆破;控制爆破;钢混筒仓;秒差延时;双向倒塌
Demolition blasting; Controlled blasting; Reinforced concrete silos; Second delay; Two-directional collapsing

Abstract:

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作者(Author): 高文学,刘运通,陈福盛
GAO Wenxue,LIU Yuntong,CHEN Fusheng(College of Architecture and Civil Engineering,Beijing Polytechnic University, Beijing 100022,China)

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