待拆建筑物与主体结构相连 ,并处在离地面 17m的高度上 ,要求爆破时周围所有功能部门均须保持正常营业。根据上述特点 ,决定混凝土顶板和侧墙采用切割机分割和吊运的方法予以拆除 ,而钢筋混凝土梁和立柱则用爆破方法拆除。本文介绍了爆破参数设计、结构的力学分析、隔振技术和防护措施等 The building to be demolished is connected with the main structure and is located at a height of 17m above the ground. All the functional departments around the demolished site must maintain normal business operations. Based on the above characteristics, the concrete roof and side walls were decided to be removed by means of cutting and lifting by cutting machines, while the reinforced concrete beams and columns were removed by blasting. This article describes the design of blasting parameters, mechanical analysis of structures, vibration isolation techniques and protective measures, etc.