场地狭窄条件下65m高烟囱的双切口单向折叠爆破拆除  

Unidirectional Folding Blasting Demolition with Double Incision of a 65 m High Chimney under the Condition of Narrow Space

作　　者：谭志敏 朱真 

机构地区：[1]广西地矿建设集团有限公司,广西南宁530023

出　　处：《爆破器材》2017年第1期55-59,共5页Explosive Materials

摘　　要：针对待拆除的65 m高烟囱的基本情况和复杂的周围环境,充分考虑场地宽度不够等实际情况,采用双切口分段折叠定向爆破的方法对烟囱进行拆除。在设计中,进行了双爆破切口位置的爆高计算和校核,选择了上、下两个切口的孔网参数、单耗和总药量等爆破参数,进行了爆破振动安全的验算,确定了有效的安全防护措施。实现了烟囱的安全、定向拆除,达到了预期的效果。Because of the complicated surrounding and narrow space around the 65 m chimney to be blasted, unidi-rectional folding blasting demolition with double incision method was employed. In this design,positions of the two inci-sions were calculated and checked,and blasting parameters of the two incisions,such as charging holes,blasting circuit, single charge and total charge,were deter^nined. Effective safety measures were decided according to the check of blasting vibration safety. The blasting demolition is safe and directional,and it achieves desired effect.

关 键 词：双切口 复杂环境 定向爆破 单向折叠爆破 

分 类 号：TU746.5[建筑科学—建筑技术科学]