【摘要】 闹市区一剧院已采用人工方法拆除了屋顶及其部分附属建筑物,为保证安全和施工工期,改用控制爆破方法进行拆除;介绍了无顶大跨度结构控爆拆除方案的选取,内向倾倒爆破高度、起爆顺序、微差时间、网路设计等爆破参数,预处理方法,药量校核及防护等安全措施,并对爆破效果进行了分析。更多还原

【Abstract】 The roof and some annexes of a theater in down town have been removed by adopting the artificial method to in order to guarantee safety and implement in time limit for a project, the method of controlled blasting demolition was used; The controlled blasting scheme uses the large span unroofed structure, the blasting parameter of introversive collapse, such as the blasting height, detonating sequence, time lap, the design of firing circuit ,pretreatment method, the proof of charge quantity, safety measure are presented, the blasting effect is analyzed and some experience are given.更多还原