摘要
南京市河西青奥公园工程基坑深10.25 m,面积28 300 m^2,采用钢筋混凝土梁支撑系统。为了安全快速地拆除6000 m^3的钢筋混凝土支撑梁,通过在支撑梁混凝土浇筑时预留爆破装药孔、孔内外延期起爆技术、钢管框架为主体的全覆盖防护措施等手段,达到了节省施工成本,增加工程经济效益的目的,取得了较好的爆破及振动控制、飞石和粉尘的防护效果,可为类似爆破工程提供参考。
The deep toundation pit project with reinforced concrete beam supporting system of Nanjing Hexi O- lympic Park is 10.25 m depth, and covers an area of 28 300 m2. In order to removed 6000 m3 reinforced concrete supporting beam quickly and safely, by adopting reserved blast hole scheme when pouring supporting beam concrete, delayed initiation technology of hole, full coverage measures by steel tubular frame, the blasting demolition was performed with small construction cost, meanwhile the preferable protective effects of the blasting vibration, fly rocks and dust were achieved,which provided a reference for the similar blasting engineering.
出处
《爆破》
CSCD
北大核心
2015年第4期99-102,117,共5页
Blasting
