混合起爆网路在多层建筑拆除中的应用

Application of Hybrid Blasting Network in the Demolition of Multi-storey Buildings

介绍了复杂环境下一栋6层框架结构办公楼房定向拆除爆破的工程实例。根据楼房的结构特点和周围环境制定了爆破方案。通过采用延时起爆技术、铺设缓冲垫层以及开挖减振沟等措施,减小了楼房爆破时产生的振动,使飞石得到了有效控制,实现了办公楼精确、安全、顺利定向倒塌,达到了设计方案的要求,取得了理想的爆破效果。在工程技术总结中提出了利用数码电子雷管的改进措施,为类似工程爆破施工提供参考。

The blasting demolition of a 6-storey frame office building under complicated environment was introduced.The blasting scheme was made based on the structural characteristics of buildings and the surrounding environment.Through the delay blasting technology,laying cushion and damping ditch excavation and so on,the blasting vibration was significantly reduced and the flying rocks were controlled effectively.The precise orientation,safe and smooth collapse of the building was realized.The requirements of the design scheme and ideal results were achieved.The improvement measures of using the digital electronic detonator are put forward in the summary of engineering construction technology,which could provide a reference for similar projects.