复杂环境下65m高砖结构烟囱定向爆破拆除

Directional Explosive Demolition of 65 m Brick Chimney in Complex Environment

介绍了65 m高砖结构烟囱的爆破设计和施工方案。针对烟囱内衬较厚的特点,采用浅孔与深孔搭配布置的布孔方式,合理选用爆破施工参数、施工工艺和安全防护手段。为了有效破坏烟囱较厚的内衬层,采用150 g集中药包和200 g间隔装药药包2种装药结构。达到了预期爆破效果,并对爆破过程中出现的问题进行了分析。

The design and construction schedule of 65 m brick chimney was introduced.Based on the structural characteristics of thick lining of the chimney,the combination of shallow hole and deep hole was chosen with reasonable selection of blast parameters,construction techniques and safety measures.For effectively destroyed the thick lining of the chimney,the 150 g concentrated charge and 200 g spaced loading charge was adopted to achieved the anticipated blast result,and made a detailed analysis of the problems occurred during the blasting.