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《Blasting》 2001-02
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Demolition of Four Buildings by Once-through Directional Blasting

WANG Yu jie 1,ZHANG Jian hua 1,CAO Yue 1, LIANG Kai shui 1,ZHONG Yuan qing 2 (1.Wuhan University of Technology,Wuhan 430070,China; 2.Hubei Provincial Public Security Buruean,Wuhan 430070,China)  
To meet the demand of an express highway construction, four buildings with 4 storey brick concrete structure and total area of 6000 m 2 are required to demolish as soon as possible.Due to the complicated surroundings and nearing a dangerous building, the explosive notches were laid out below the floor, about 6500 blastholes were laid out after pretreating the wall.A millisecond unite detonation network of non electric fuse detonation and bi electric fuse propagation was utilized to once through detonate, the four buildings were successfully collapsed.
【CateGory Index】: TU746.5
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