对角延时起爆技术在城市拆除爆破中的应用  

APPLICATION OF DIAGONAL DELAY-BLASTING TECHNIQUE TO URBAN DEMOLITION BLASTING

作　　者：蔡伟 康翠平 孙江 王海峰 金会石 梁殿军 尤广书 

机构地区：[1]中铁九局集团爆破工程有限公司,沈阳110002

出　　处：《工程爆破》2008年第4期37-39,48,共4页Engineering Blasting

摘　　要：对角延时起爆技术是露天深孔爆破中常用的起爆手段,目的是加大孔距减小最小抵抗线并改变岩石运动的方向。在城市拆除爆破中采用对角延时起爆技术少有先例,尤其在大面积城市拆除爆破中。本文介绍的是在沈阳东北汽配城46700m^2框架结构楼房一次爆破拆除工程中,对角延时起爆技术的成功应用。Diagonal delay-blasting technique is a common blasting method adopted by deep-hole blasting in open-pit coal, aiming at enlarging the row pitch, decreasing the line of least resistance and alternating the orientation of rock movement. But there＇s few precedent of the kind regarding demolition in urban blasting, especially in the case of large capacity blasting demolition. This article elaborates the successful application of diagonal delay-blasting technique to simultaneous collapsing in project of blasting demolition of the Shenyang Northeast Auto Parts Market in frame structure with a construction area of 46700m2.

关 键 词：对角延时起爆 拆除爆破 东北汽配城 框架结构 

分 类 号：TU746.5[建筑科学—建筑技术科学]