预裂爆破切割大型厂房立柱

CUTTING OF LARGE-SCALE COLUMN OF FACTORY BUILDING BY PRESPLITTING BLASTING

在厂房内复杂环境下 ,用预裂爆破对两个大型钢筋混凝土厂房立柱进行部分切割。介绍了爆破方案的确定 ,预裂孔、缓冲孔和主爆孔爆破参数的选取和装药结构。概述了起爆网路的设计和安全防护措施。此外还介绍了作者的体会。

Under complex condition in a factory building,two large-scale reinforced concrete columns of the factory building were partially cut by the presplitting blasting.The determination of blasting scheme,the parameter selection and charge structure of presplitting,buffering and primary blasting holes were introduced.Priming network design and safety precautions were outlined.In addition,author′s experience was presented.